OmniPreSense OPS243-A User manual

UM-003-A OPS243-A User Manual 1 OmniPreSense Corporation
UM-003 OPS243-A User Manual
OmniPreSense OPS243-A short range radar sensor has an easy to use API to control the output of the
sensor. Simple commands can be used to configure the operation and output information provided by
the sensor. Default settings are noted below. Upon powering on the module, the default settings are
used.
Installation Instructions
The OPS243-A provides a complete radar module on a single board. The coverage area or field of view
(FOV) for the OPS243-A is 20in the azimuth (horizontal) and 24elevation (vertical). Install the OPS243-
A facing the direction of the FOV to be covered. The antenna gain for the radar sensor is 11dBi.
Figure 1. OPS243-A Beamwidth
The OPS243-A can generally can be placed behind most any material (plastic, glass, wood, etc.) depending
on thickness. Typical applications will use plastics such as ABS or PVC at 3 or 6mm thickness. Some
materials will block the signal and the OPS243-A should not be placed behind these. Examples of these
are metal, concrete or brick.

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Radar Sensor Types
OmniPreSense provides two different types of sensors, Doppler radar sensor reporting motion and speed
and FMCW radar sensors reporting range. The feature differences for these sensors is shown in Table 1.
The following API commands pertain to both types of sensors except for special cases. In these cases, this
document will call out the special command for either a Doppler (-A), FMCW (-B), or both Doppler and
FMCW (-C) radar.
Table 1. Radar Sensor Feature Matrix
Sensor
Type
Motion
Speed
Direction
Signal
Magnitude
Range
FCC/IC
Modular
Approval
Detection
Range
(RCS = 10)
OPS243-A
Doppler
●
●
●
●
●
75-100m
OPS243-C
Doppler
& FMCW
●
●
●
●
●
●
(pending)
50-60m
Terminal Control
A simple Command Terminal can be used to control the module operation with the API commands.
Examples of simple but very useful Command Terminals are Tera Term and PuTTY.Both are free, open
source terminal tools for the PC/Mac which can easily connect to a serial port and accept data over USB
from the OmniPreSense module.
To begin using the OmniPreSense sensor, first download Tera Term or PuTTY onto your PC/Mac. With the
OmniPreSense sensor plugged into the USB port of your PC/Mac, start Tera Term or PuTTY. A
configuration window such as Figure 2 or Figure 3 will appear. Tera Term can detect the active COM port
(greyed out to right of Serial button if TCP/IP is selected). Select the Serial button and press OK.For
PuTTY, you’ll need to know which COM port is used, set its value, select the Serial button, and Open.
Figure 2. Tera Term Startup Menu

UM-003-A OPS243-A User Manual 3 OmniPreSense Corporation
Figure 3. PuTTY Startup Menu
Once connected, the data reported by the sensor will start streaming to the terminal when an object
either in motion appears (-A, -C Doppler radar sensors) or there are objects in the sensors field of view (-
B, -C FMCW radar) to report the range to. The default settings are shown in Table 2. If there is no object
moving in front of the sensor or it’s not pointing at any object, no data is reported or streamed to the
terminal. A simple wave of the hand will show data like that shown in Figure 4. Any of the API commands
can now be executed to change the output data or query the configuration.
Figure 4. Streaming Data with Tera Term

UM-003-A OPS243-A User Manual 4 OmniPreSense Corporation
Figure 5. Streaming Data with PuTTY

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Default Settings
The default settings of the module are set to provide solid performance over a wide range of applications.
Upon power-up the default settings are used, and operation begins. Future updates will allow the module
to retain the settings of the module from the last operation. The default settings are listed in Table 2.
Table 2. Default Settings
API Command
API Command
Doppler (-A)
Default Value
FMCW (-B)
Default Value
Output Units
UM/uM
m/s
m
Data Precision
F2
2
2
Sampling Rate
SX
10,000
N/A
Sampling Buffer Size
S>
1024
N/A
Simple Motion Interrupt
IG
Off
Off
Reported Speed Filter
R>n, R<n
Off
N/A
Reported Direction Filter
R|
Off
N/A
Reported Range Filter
r>n, r<n
N/A
Off
Magnitude Filter
M>n, M<n (Doppler) or
m>n, m<n (FMCW)
>10
>100
JSON Output
OJ
Off
Off
LED Control
OL
On
On
Magnitude Report
OM
Off
Off
Number Reports
On
1
1
Raw Data Output
OR
Off
Off
Post FFT Data Output
OF
Off
Off
Speed or Range Report
OS/OD
On
On
Time Report
OT
Off
Off
Output Units
OU
N/A
On
Sensor Power Mode
PA
Active
Active
Power Level
PX
On
On
Speed Operating Range (-A Doppler only)
The maximum speed reported is determined by the Sampling Frequency. For slow moving objects, a
sample rate of 5,000 (SV command) is perfectly fine. The default setting of 10,000 (SX command) provides
a detectable speed of up to 31.1 m/s (69.5 mph) while 20,000 (S2 command) provides up to 62.2 m/s
(139.1 mph). The resolution of the reported speed increases as the sample frequency goes down. The
range of values is summarized in Table 3.

UM-003-A OPS243-A User Manual 6 OmniPreSense Corporation
Table 3. Maximum Operating Speeds
Sample
Frequency
API
Command
Maximum
Speed (m/s)
Maximum
Speed (mph)
Resolution*
(m/s)
Resolution*
(mph)
1,000
SI
3.1
7.0
0.006
0.014
5,000
SV
15.5
34.8
0.030
0.068
10,000
SX
31.1
69.5
0.061
0.136
20,000
S2
62.2
139.1
0.121
0.272
50,000
SL
155.4
347.7
0.304
0.679
100,000
SC
310.8
695.4
0.608
1.358
* 1024 buffer size, 512 buffer size accuracy will be twice these values, 256 four times

UM-003-A OPS243-A User Manual 7 OmniPreSense Corporation
API Commands
The following are the API commands supported by the OPS243. These commands can be sent by typing
into the command terminal to change settings on the sensor or control its operation. The commands
provided include simple queries to fetch information about the sensor and its settings or write commands
which control or change the operation of the sensor.
Module Information –returns information about the module and its setting.
Command
Name
R/W
Value
??
Module Information
Read
{"Product":"OPS243"}
{"Version":"1.0.0"}
{"SamplingRate":10000, "resolution":0.0607}
{“SampleSize”:1024}
{"Clock":"54"}
{"Q2COUNT":"1149 (~22980 counts/sec)
@t=37"}
{"PowerMode":"Continuous"}
{"Squelch":"100"}
{“RequiredMinSpeed”:”0.000”}
?R
Reset Reason
Read
Provides the reason why sensor reset.
{ "ResetReason": "Status from bitmask",
"Power On" : true, "Supply Watchdog" : true,
"Power Validation" : true }
Module Part Number –returns model number of sensor.
Command
Name
R/W
Value
?P
Module Part Number
Read
{"Product":"OPS243 Doppler"}
Firmware Version/Board ID –returns current firmware version of the module. Firmware version
consists of a major revision, minor revision, and patch revision in the form of xx.yy.zz.
Command
Name
R/W
Value
?V
Firmware Version Number
Read
{"Version":"1.3.1"}
?B
Firmware Build Number
Read
{"Build":"20181005_1335"}
?U
Unique Board ID
Read
{"UID":"b2000040b7a12400d5188041"}

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Speed Output Units (-A, -C Doppler only) –read or set the units for the velocity output. Units
supported include m/s (default), cm/s, ft/s, km/hr, and miles per hour.
Command
Name
R/W
Value
U?
Current Velocity Units
Read
{"Units":"m-per-sec"}
UC
Centimeters per second
Write
{"Units":"cm-per-sec"}
UF
Feet per second
Write
{"Units":"ft-per-sec"}
UK
Kilometers per hour
Write
{"Units":"km-per-hr"}
UM
Meters per second
Write
{"Units":"m-per-sec"}
US
Miles per hour
Write
{"Units":"mph"} Calculations are based on the
international mile (1,609.344 m per mile).
Range Output Units (-B, -C FMCW only) –read or set the units for the range output. Units supported
include meter (default), centimeter, feet, inch, and yards.
Command
Name
R/W
Value
u?
Current Range Units
Read
{"Units":"Value", "RangeUnit":"m"}
{"Resolutions":"Value",
"RangeResolution_m":0.0777}
uM
Meters
Write
{"Units":"Value", "RangeUnit":"m"}
{"Resolutions":"Value",
"RangeResolution_m":0.0777}
uC
Centimeters
Write
{"Units":"Value", "RangeUnit":"cm"}
{"Resolutions":"Value",
"RangeResolution_cm":7.7710}
uF
Feet
Write
{"Units":"Value", "RangeUnit":"ft"}
{"Resolutions":"Value",
"RangeResolution_ft":0.2550}
uI
Inch
Write
{"Units":"Value", "RangeUnit":"in"}
{"Resolutions":"Value",
"RangeResolution_in":3.0594}
uY
Yards
Write
{"Units":"Value", "RangeUnit":"yd"}
{"Resolutions":"Value",
"RangeResolution_yd":0.0850}
Data Precision –set the number of digits for the data reported.
Command
Name
R/W
Value
Fn
Decimal Places
Write
Set n to the number of decimal places to be
reported. For example, setting to F2 will
report 2 decimal places (ex. 10.35). F0 will
provide the integer value only. Valid values of
n are 0-5.
F?
Decimal Place Setting
Read
Query the number of decimal places set.

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Sampling Rate/Buffer Size (-A, -C Doppler only) –set these values to control the sample rate of the
module. This setting influences the output data and the rate at which the data is reported. The buffer
size influences the report rate and resolution. A buffer size of 512 will have a report rate between 5-30Hz.
The resolution becomes worse by a factor of two with a 512-buffer size versus 1024 (Figure 6) and worse
again at 256 buffer size.
Command
Name
R/W
Notes
SI
1K samples/second
Write
SV
5K samples/second
Write
SX or S1
10K samples/second
Write
S2
20K samples/second
Write
SL
50K samples/second
Write
SC
100K samples/second
Write
S>
1024 buffer size
Write
1024 samples are collected before processing
S<
512 buffer size
Write
512 samples are collected before processing
S{
256 buffer size
Write
256 samples are collected before processing
Figure 6. Doppler (-A) Buffer Size versus Resolution
-0.10
0.10
0.30
0.50
0.70
0.90
1.10
1.30
1.50
1.70
1.90
2.10
2.30
2.50
1,000 10,000 100,000
Resolution (m/s)
Sampling Rate
256 Buffer
512 Buffer
1024 Buffer

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Reported Speed/Range/Direction Filter –use these settings to set the range of data to report. Settings
are available for either a minimum or maximum value below or above which data will not be reported.
Commands are available to set speed, range, and direction of speed filters. These filters can be used to
help set sensitivity levels of detection. This command requires a return () after the number. Direction
filter allows reporting only a single direction or both.
Command
Name
R/W
Notes
R>n
Reported Minimum Speed
Filter
Write
n is any number upon which no detected
speeds below that number will be reported.
R>0 resets to no limit. Doppler (-A, -C) radar
only.
R<n
Reported Maximum Speed
Filter
Write
n is any number upon which no detected
speeds above that number will be reported.
R<0 resets to no limit. Doppler (-A, -C) radar
only.
r>n
Reported Range Filter
Write
n is any number upon which no detected
range below that number will be reported.
r>0 resets to no limit. FMCW (-B, -C) radar
only.
r<n
Reported Range Filter
Write
n is any number upon which no detected
range above that number will be reported.
r<0 resets to no limit. FMCW (-B, -C) radar
only.
R?
Report Current Speed Filter
Read
Reports current settings of the speed filter
r?
Report Current Range Filter
Read
Reports current settings of the range filter
R+
Inbound Only Direction
Write
Only reports inbound direction
R-
Outbound Only Direction
Write
Only reports outbound direction
R|
Clear Direction Control
Write
Reports both directions
Frequency Control (-A, -C Doppler only) –use this setting to set the desired transmit frequency. Set nto
a positive or negative number to set the frequency. T=0 is the default setting targeting 24.125GHz. Each
increment steps approximately 18MHz. The programming steps are limited to 24.0 through 24.25GHz for
the OPS243. The limits on nare -2 (~24.0GHz) to 2 (~24.25GHz) for the OPS243 which has some guard
banding to ensure it stays within the 24.0-24.25GHz ISM band. Depending on the spread between the
current frequency and the newly set frequency, there may be a long settling time on the order of 5-10
seconds or longer based on the size of the jump in values. Writing ?F will provide the current transmitter
output frequency.
Command
Name
R/W
Value
T=n
Frequency Setting
Write
T=0 is the default setting for 24.125GHz.
?F
Frequency Output
Read
?F returns the output frequency of the
transmitter in GHz.

UM-003-A OPS243-A User Manual 11 OmniPreSense Corporation
Data Output –set to control the data output.
Command
Name
R/W
Value
OD
Range Report
Write
Turn range reporting on or off. Default
operation range is reported. Use Od to turn it
off and OD to turn it back on. FMCW (-B, -C)
radar only.
OS
Speed Report
Write
Turn speed reporting on or off. Default
operation speed is reported. Use Os to turn it
off and OS to turn it back on. Doppler (-A, -C)
radar only.
OF
FFT Output On
Write
Results from the FFT processing of each buffer
is sent. Data is output with json output
format. Use Of to turn FFT output off. It’s not
recommended to use OF with UART, especially
at low baud rates.
OG
Object Sensor Light
Write
Enables White light when Object Sensor is
enabled (IG) and an object is detected. Disable
the light with Og. By default, the object sensor
light is disabled.
OC
Processing Light Activity
Write
Enables lights showing processing activity.
Disable the lights with Oc. By default, the
processing activity lights are disabled.
OJ
JSON Mode On
Write
Turns on output to format data in JSON
format. An example would output:
{"speed":0.58, "direction":"inbound",
“time”:105, :tick”:135}. Use Oj to turn off
JSON mode.

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Command
Name
R/W
Value
OR
Raw ADC Output On
Write
I and Q output buffers from the ADC will be
sent. Data output will alternate between the I
and then Q buffer. Or turns off raw ADC
reporting. It’s not recommended to use OF
with UART, especially at low baud rates.
OL
LED Control
Write
Turn the LEDs on (OL) or off (Ol). Turning off
the LED’s can save approximately 10mA of
current consumption.
OM
Magnitude Report
Write
Turn on reporting of the magnitude associated
with the speed. The magnitude is a measure
of the size, distance, and reflectivity of the
object detected. Type Om to turn magnitude
off. When turned on, magnitude information
is reported before speed/range information.
On
Number of Reports
Write
Define how many reports to provide. n is a
number between 1 and 9. The number n
applies to magnitude and speed reports.
OT
Time Report
Write
Turn the time report on. Time is reported as
the seconds and milliseconds since the last
reboot or power on. For example, 137.429,
3.6 is read as 137 seconds and 429
milliseconds with a speed of 3.6 m/s. If
magnitude is turned on, the data is provided
as time, magnitude, speed.
OU
Units Report
Write
Report the current unit setting with each
report. Default units is turned on. Use Ou to
turn off. FMCW (-B) radar only.
OV
Range Report Order
Write
Changes the default order of the range
reported to largest range value first to
smallest as opposed to using largest signal
magnitude. Use Ov to return to ordering by
signal magnitude. Use O/ to report smallest
range first to largest or turn back to largest
first with O\. FMCW (-B, -C) radar only.
BZ
BL
BS
BC
BT
BV
Blank Data Reporting
Write
If measured data does not meet filtering
criteria, sensor will report out a character with
every sampling interval. BZ will report zero
value. BL will report blank lines. BS will report
a space. BC will report with a comma. BT will
report a timestamp. Use BV to turn off.

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UART Control –set to control the UART interface. The default configuration is 8-bits, no parity, 19,200
baud rate, and 1 stop bit. The OPS243 will start reporting out on the UART immediately after power on.
If the USB is enumerated, the UART reporting will be shut off and data will be reported out USB. It’s not
recommended to use OF with UART, especially at low baud rates.
Command
Name
R/W
Value
I?
Query Baud Rate
Read
Outputs current baud rate and oversampling
setting.
In
Baud Rate
Write
Set n to values 1, 2, 3, 4, or 5 based on desired
baud rate.
I1 = 9,600
I2 = 19,200 (default)
I3 = 57,600
I4 = 115,200
I5 = 230,400
Simple Object Detection Interrupt –a simple output which trips if an object in motion or object in range
is detected. The signal is toggled on the interrupt pin. For the Doppler (-A, -C) radar sensors, the pin is
high when no motion is present and low when motion is detected. For the FMCW (-B, -C) radar sensors,
the pin is high when no object is in detected region and set low when and object is detected in the
detection region. For Doppler (-A, -C) radar sensors the interrupt can be filtered on speed (R>n, R<n),
signal magnitude (M>n, M<n), and direction (R+, R-, R|). For FMCW (-B, -C) radar sensors, the interrupt
can be filtered on range (r>n, r<n) and signal magnitude (m>n, m<n). Figure 7 shows how filtering can
allow detection for certain objects and mask out others.
Command
Name
R/W
Value
IG
Object Detection Interrupt
Write
Turn object detection interrupt on. Use “Ig”
to turn off.
Figure 7. Speed, Range and Magnitude Filtering

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Simple Counter –counts objects which meet the speed/range and signal magnitude filtering settings. The
counter will count the number of objects over time which meet the filtering settings for speed/range and
signal magnitude. The count is not reported but can be queried with the N? command. The count can be
reset with the N! command. A count is triggered if 2 or more consecutive reports meet the threshold
limits. Once detected, the object is set to be counted until 4 reports missing the threshold limits are seen.
The value to start a count (default 2) can be set with the N>ncommand. The value to end a count (default
4) can be set with the N<ncommand. To start a new count, clear the running count with the N! command.
Command
Name
R/W
Value
N?
Query Count
Read
Reports number of objects counted.
{"DetectedObjectCount":3}
N!
Reset Count
Write
Resets the number of objects in counter.
{"DetectedObjectCount":0}
N>n
Count Start Threshold
Write
{"MotionSignal":"Status", "CountToPass":2,
"CountToFail":4}
N<n
Count End Threshold
Write
{"MotionSignal":"Status", "CountToPass":2,
"CountToFail":3}
Clock –set to control the reporting of the time. The time is measured in seconds/milliseconds from power
on of the module. Use the OT command to report the time in seconds and milliseconds. When the module
is put in low power state (PI), the clock will continue counting. If you wish for the module to provide “the
real time”, then set it to “the Unix Epoch time” (see wikipedia.org/wiki/Unix_time).
Command
Name
R/W
Value
C?
Query Time
Read
Ex. {“Clock”:”50”} reports 50 seconds since
power on.
C=n
Set Time
Write
Reset the clock start time. For example, n = 10
will start the clock at 10 seconds and then
continue counting.

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Module/Transmit Power –set to control the operating mode (PA, PI, PP) or the transmit power. The
typical maximum transmit power is 9 dB. Reducing the transmit power does not reduce the overall
power consumption of the module. Note that the detection range will decrease with decreased
transmit power.
Command
Name
R/W
Value
P?
Active Power State
Read
Reports current power state.
PA
Active Power Mode
Write
Normal operating mode.
PI
Idle Power Mode
Write
No activity, waits for Active Power command.
The RF is powered down for further power
savings.
PP
Single Pulse
Write
Use to capture and process a single pulse and
buffer of data. Use when the sensor is set to
PI mode.
P7 or PN
Transmit Power Control or
Min Power
Write
Transmit is set at -9 dB below max power.
P6
Transmit Power Control
Write
Transmit is set at -6 dB below max power.
P5
Transmit Power Control
Write
Transmit is set at -4 dB below max power.
P4
Transmit Power Control
Write
Transmit is set at -2.5 dB below max power.
P3 or PD
Transmit Power Control or
Mid Power
Write
Transmit is set at -1.4 dB below max power.
P2
Transmit Power Control
Write
Transmit is set at -0.8 dB below max power.
P1
Transmit Power Control
Write
Transmit is set at -0.4 dB below max power.
P0 or PX
Transmit Power Control or
Max Power
Write
Transmit power is set at its maximum value
with maximum range. PX has additional
“overdrive” of 0.2 dB when utilized.
PO
Transmit Off
Write
Turn transmit off and put in sensor in receive
only mode. Use P! to turn transmit back on.
P!
System Reset
Write
Full system reset including the clock.

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Short Duty Cycle Control –set to control duty cycle operation under 1 second. The time set is the amount
of time the sensor will delay between outputting the last report and starting the next report.
Command
Name
R/W
Value
W?
Current Delay time
Read
W0
0 delay between reports
Write
WI
1ms delay
Write
WV
5ms delay
Write
WX
10ms delay
Write
W2
20ms delay
Write
WL
50ms delay
Write
WC
100ms delay
Write
WD
500ms delay
Write
WM
1000ms delay
Write
Wn
n*100ms delay
Write
0 ≤ n ≤9
Long Duty Cycle Control –set to control the duty cycle operation greater than or equal to 1 second. The
time set is the amount of time the module will sleep between transmit/receive pulses and processing. For
settings longer than 1 second, the RF will be powered off to save power. In this manner, lower power
operation may be achieved.
Command
Name
R/W
Value
Z?
Current sleep setting
Read
Z0
Sleep 0 Second
Write
Use to set back to normal operation.
ZI
Sleep 1 Second
Write
ZV
Sleep 5 seconds
Write
ZX
Sleep 10 seconds
Write
ZL
Sleep 50 seconds
Write
ZC
Sleep 100 seconds
Write
Z2
Sleep 200 seconds
Write
Zn
Sleep n*100 seconds
Write
0 ≤ n ≤9
Z=n
Set Sleep Time
Write
Set the amount of time to sleep between data
processing. Ex., n = 5 would set the module to
sleep for 5 seconds (RF powered off) between
a transmit/receive pulse and processing. 0 ≤ n
≤4,294,967

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Magnitude Control –provides control over the sensitivity of the module to detect moving objects. Low
numbers are most sensitive, high numbers are least sensitive. Magnitude is related to Squelch as the
square root of the number. For example, a magnitude setting of 10 is equal to a Squelch setting of 100
(QI).
Command
Name
R/W
Value
M?
Current speed magnitude
setting
Read
Doppler (-A, -C) radar only.
m?
Current range magnitude
setting
Read
FMCW (-B, -C) radar only.
M>n
Low Speed Magnitude
Filter
Write
n is any number upon which no detected
magnitudes below that number will be
reported. M>0 resets to no limit. Doppler (-A,
-C) radar only.
M<n
High Speed Magnitude
Filter
Write
n is any number upon which no detected
magnitudes above that number will be
reported. M<0 resets to no limit. Doppler (-A,
-C) radar only.
m>n
Low Range Magnitude
Filter
Write
n is any number upon which no detected
magnitudes below that number will be
reported. m>0 resets to no limit. FMCW (-B, -
C) radar only.
m<n
High Range Magnitude
Filter
Write
n is any number upon which no detected
magnitudes above that number will be
reported. m<0 resets to no limit. FMCW (-B, -
C) radar only.

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Persistent Memory –saves current configuration into flash memory and is retained even if power is
removed.
Command
Name
R/W
Value
A!
Save Configuration
Write
Saves current configuration settings in flash
memory. Upon power loss or recycling power,
the saved configurations will be used as the
default.
A.
Read Settings
Write
Read the current flash settings.
AX
Reset Flash Settings
Write
Will overwrite current saved settings and
return to the factory default settings.

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FCC 15B Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
FCC 15C Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.
FCC RF Exposure Statement
This transmitter must be installed to provide a separation distance of at least 20cm from all persons and
must not be co-located or operating in conjunction with any other antenna or transmitter. End-users must
be provided with transmitter operation conditions for satisfying RF exposure compliance.
IC Statement (English and French):
This device complies with ISED Canada license-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'ISED Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radio électrique subi, même si le
brouillage est susceptible d'en comprom-ettre le fonctionnement.

UM-003-A OPS243-A User Manual 20 OmniPreSense Corporation
Non-modification Statement
OmniPreSense Corporation has not approved any changes or modifications to this device by the user.
The antenna design is intended to be used as is with no modifications. Any changes or modifications
could void the user’s authority to operate the equipment.
The final product containing the modular transmitter must be labeled with the following statement:
“Contains FCC ID: 2ALLL243A”
“Contains IC: 24107-243A”