Figaro KE Series Manual

Revised 09/22 1
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
Technical Information for Maxell Oxygen Sensor KE-Series
The Maxell Oxygen Sensor
KE-Series is a unique galvanic
cell type oxygen sensor which
provides a linear output voltage
signal relative to percent oxygen
present in a particular atmosphere.
The sensor features long life
expectancy, excellent chemical
durability, and it is not inuenced
by CO2, making it ideal for
oxygen monitoring.
Page
Introduction...............................................................................................2
Basic Information and Specications
Features...............................................................................................2
Applications.......................................................................................2
Structure and Operating Principle.................................................2
Specifications.........................................................................2
Absolute Maximum Operating and Storage Conditions............3
Dimensions.................................................................................3
Typical Sensitivity Characteristics
Sensitivity to Oxygen...........................................................................4
Response Speed..............................................................................4
 InuencefromVariousGases...........................................................4
 Eects of Pressure Change......................................................5
 Humidity Dependency...........................................................5
Temperature Dependency..................................................................6
Reliability
 Inuence of Organic Solvents.....................................................6
Life Expectancy.................................................................................6
  RelationshipofExpectedLifeandO2Concentration..............6
  RelationshipofExpectedLifeandStorageTemperature.........6
Long Term Stability...........................................................................7
Cautions.................................................................................................7
Limited Warranty and Limitation of Liability..........................................9
an ISO9001 company

Revised 09/22 2
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
1. Introduction
The Maxell Oxygen Sensor KE series (KE-25 and KE-50) is
a unique galvanic cell type oxygen sensor. Its most
notable features are a long life expectancy, excellent
chemical durability, and it is not inuenced by CO2.
The KE series oxygen sensor is ideal to meet the
ever-increasing demand for oxygen monitoring in
various elds such as combustion gas monitoring, the
biochemical eld, domestic combustion appliances,
etc.
2. Basic Information and Specications
2-1 Features
* Long life (KE-25 - 5 years / KE-50 - 10 years)
* Virtually no inuence from CO2, CO, H2S, NOx, H2
* Low cost
* Operates in normal ambient temperatures
* Stable output signal
* No external power supply required for sensor
operation
* No warm-up time is required
2-2 Applications
* Biotechnology - Oxygen incubators
* Food industry - Refrigeration, greenhouses
* Safety - Air conditioners, oxygen detectors, re
detectors
2-3 Structure and operating principle
The KE series sensor is a lead-oxygen battery which
incorporates a lead anode, an oxygen cathode made of
gold, and a weak acid electrolyte. Oxygen molecules
enter the electrochemical cell through a non-porous
uorine resin membrane and are reduced at the gold
electrode with the acid electrolyte. The current
which ows between the electrodes is proportional
to the oxygen concentration in the gas mixture
being measured. The terminal voltages across the
thermistor (for temperature compensation) and
resistor are read as a signal, with the change in
output voltages representing the change in oxygen
concentration.
The following chemical reactions which take place
in KE sensors:
Cathodic reaction: O2 + 4H++ 4e-→ 2H2O
Anodic reaction: 2Pb + 2H2O → 2PbO + 4H++ 4e-
Total reaction: O2+ 2Pb →2PbO
A small volume air bubble is contained inside the sensor
body in order to compensate for internal inuence from
pressure changes. The sensor's electrolyte is primarily
composed of acetic acid with a pH of approximately 6.
The sensor's body is made of ABS resin.
Both the KE-25 and the KE-50 sensors are based on
identical design and performance principles. The
basic difference between these two models is in the
thickness of the uorine resin membrane. This affects
the diffusion speed of oxygen molecules and, as a
result, the response speed and life of the sensor. Each
model shows basically the same performance in the
various conditions described in the technical data, e.g.
inuence by other gases, pressure dependency, etc.
2-4 Specications
Table 1 (see following page) shows the specications
of the KE series oxygen sensors.
Notes:
1) Whencalibratedatboth0%and100%ofO2,accuracy
in the range from 0-100% O2shall be within ±1% of
full scale for KE-25 and ±2% of full scale for KE-50.
2) Va = output voltage at 21% O2
V0= output voltage at 0% O2
V100 = output voltage at 100% O2
3) Va = output voltage at 25˚C
VH = output voltage at 40˚C
VL = output voltage at 5˚C
4) Sensors should be used under conditions where
the air exchange is greater than 200~300ml per
minute in order to obtain the response speed as
specied in Table 1.
2-5 Absolute maximum operating and storage conditions
Fig. 1 - Structure of KE-25/KE-50
Bottom Lid
Compensating
Resistor
Air Bubble
Electrolyte
Lead Electrode
(Anode)
Lead Wire (-)
Lead Wire (+)
Thermistor
Titanium
Lead Wire
Current
Collector
O-Ring
Inner Lid
Outer Lid
Oxygen Permeable
Membrane
Gold Electrode
(Cathode)

Revised 09/22 3
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
The accumulated total duration of exposure to the
absolute maximum conditions listed in Table 2
should be limited to no more than 24 hours.
Cautions:
1) Beneath the lower pressure limit, sensor life may
become shorter due to excessive evaporation of the
liquid electrolyte.
Table 1 - Specications of KE-25/KE-50
Table 2 - Absolute maximum operating and storage conditions
of KE-25/KE-50
2) At pressure in excess of the upper limit, sensor
output may become unstable due to excessive air
entering through the o-ring.
3) In the range -10~-20˚C, the electrolyte will freeze
and the sensor will not function, but KE sensors
would not be damaged by freezing of the electrolyte
and will resume functioning after the electrolyte
thaws to a liquid state. Below -20˚C, the sensor may
be damaged by freezing of the electrolyte, resulting
in possible leakage of the electrolyte.
4) At temperatures in excess of the upper limit, the
ABS resin casing may deteriorate.
5) If used for a long period in an extremely dry
environment, sensor life may be shortened due to
excessive evaporation of the liquid electrolyte.
2-6 Dimensions (see Fig. 2)
Figure 2 - Dimensions of KE-25/KE-50
OXYGEN
KE-
NO.18
ø28±0.5
22.5±0.3
80±5
4±2
47.3±0.5
5
ø23.2±0.5
15
ø5
ø9
M16 x P1.0
81.5
4.5 2.5
15
Lead wire
47.3±0.5
5
ø23.2±0.5
15
ø5
ø9
ø23.2±0.5
ø9
ø9
ø16
ø16.6
50±0.5
57±0.5
Unit = mm
22.7±0.5
ø23±0.5
KE-12/KE-25/KE-50 standard version KE-25F1 (w/o flange) KE-25F3 (threaded top) KE-25F4 (O-ring top)
13
13
22.7±0.5
ø23±0.5
22.7±0.5
ø23±0.5
Item Model
KE-25 KE-50
Measurement range 0~100% O2
Accuracy (Note 1)±1% full scale ±2% full scale
Operating conditions
Atmospheric pressure 811hPa~1216hPa
Temperature 5˚~40˚C
Relative humidity 10~90%RH (no condensation)
Response time (90%) (Note 4)14±2 seconds 60±5 seconds
Initial output voltage under factory test conditions 10.0~15.5mV 47~65mV
Factory test conditions
Test gas 21% O2
Atmospheric pressure 1013hPa
Temperature 25˚±5˚C
Linearity (Va-V0)/(V100-V0)
(Note 2)0.21±0.02
Oset voltage V0≤0.5mV ≤6.0mV
Temperature
characteristics (Note 3)
VH/Va 0.91~1.09
VL/Va 0.91~1.09
Item Lower limit Upper limit
Pressure 507hPA (Note 1) 1520hPA (Note 2)
Temperature -20˚C (Note 3) 60˚C (Note 4)
Relative humidity 0%RH (Note 5) 100%RH
KE-25/KE-50 standard version

Revised 09/22 4
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
3. Typical Sensitivity Characteristics
3-1 Sensitivity to oxygen
Figures 3a and 3b show the sensitivity characteristics
of the KE sensors. The Y-axis indicates the output
voltage of the sensor.
3-2 Response time
Figure 4 demonstrates the response pattern of the
sensor's output voltage. The Y-axis indicates the
output voltage ratio(%) to saturated voltage. Typical
response time to 90% of saturated response is 14
seconds for KE-25 and 60 seconds for KE-50.
3-3 Inuence of various gases
The inuence on KE sensors from various gases is
shown in Table 3. The 'interference level' shown in
the table indicates the change ratio between sensor
output in an air (20.7% O2) and gas mixture compared
to sensor output in normal air (20.7% O2). For
example, if the interference level of SO2is considered
to be 3%, that would indicate that the sensor's output
voltage in normal air (20.7% O2) would correspond
to a concentration of 21.3% O2 (20.7% x 1.03).
Fig. 3b - KE-50 sensitivity characteristics
Fig. 3a - KE-25 sensitivity characteristics
0
20
40
60
80
100
120
0 30 60 90 100 110 120
Time (sec.)
Output ratio (%)
KE-25
KE-50
Fig. 4 - Response speed of KE sensors to oxygen
Table 3 - Inuence of various gases on KE-series sensors
0
0
Oxygen concentration (%)
Output voltage (mV)
300
250
200
150
100
50
10 20 30 40 50 60 70 80 90 100
max.
min.
typ.
Gas Concentration Interference Level
Carbon monoxide 0-100% no eect
Carbon dioxide 0-100% no eect
Nitric monoxide 0-1% no eect
Nitrogen dioxide 0-1% no eect
Sulfur dioxide 0-3% 3%
Hydrogen sulde 0-3% no eect
Ammonia 0-3% 1%
Hydrogen 0-100% no eect
Hydrogen chloride 0-3% 1%
Benzene 0-100ppm 1%
Methane 0-100% no eect
Oxygen concentration (%)
Output voltage (mV)
0
70
60
50
40
30
20
10
010 20 30 40 50 60 70 80 90 100
80
max.
min.
typ.

Revised 09/22 5
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
3-4 Effects of pressure change
The pressure dependency of KE-50 can be seen in
Figure 5. In this range of atmospheric pressure, sensor
output voltage maintains a linear relationship when
compared with atmospheric pressure. This same
tendency can be seen in all models of KE sensors.
3-5 Humidity dependency
Figure 6 displays an example of humidity dependency
for KE-50. The Y-axis shows sensor output voltage. The
sensor itself is not inuenced by humidity, but its output
voltage may show some variation to the extent that O2is
displaced by humidity, as indicated in Figure 7.
Fig. 5 - KE-50 response of output voltage to
ambient pressure changes
(at 25˚C/60%RH)
Fig. 6 - KE-50 effect of humidity on output voltage
(at 25˚C in ambient air)
Fig. 7 - Effect of humidity on O2concentration
0 20 40 60 80 100
Humidity (%RH)
O2concentration (%)
21.0
20.5
19.5
19.0
20.0
5oC
15oC
40oC
35oC
30oC
25oC
�20oC
10oC
30
45
60
75
90
800 900 1000 1100 1200 1300
Sensor output (mV)
Atmospheric pressure (hPa)
max.
min.
typ.
30
40
50
60
70
20 40 60 80
Sensor output (mV)
Humidity (%RH)
max.
min.
typ.
100

Revised 09/22 6
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
3-6 Temperature dependency
The standard KE sensor has a built-in temperature
compensation circuit which uses a thermistor that is
mounted inside the sensor’s body (see Fig. 1). The
temperature dependency of the KE series with this
built-in compensation circuit is shown in Figs. 8a
and 8b.
The KE sensor may show some transient char-
acteristics if the ambient temperature changes very
widely and quickly. This is caused by the difference
in response speed to temperature changes between
the sensor compartment and the built-in thermistor.
A quick rise in ambient temperature temporarily
makes output voltage high and vice versa for a quick
fall in temperature. Such temporary drift disappears
after the sensor's temperature reaches equilibrium
with the ambient temperature. For avoiding this
problem, the sensor should be protected from quick
temperature changes (such as direct exposure to
sunlight or wind) by some kind of enclosure.
In addition, temperature should be kept uniform
throughout the sensor's structure in order to avoid
improper compensation caused by differences
in temperature between the sensing area and the
thermistor location.
4. Reliability
4-1 Inuence of organic solvents
Exposure to organic solvents such as toluene,
benzene, xylene, acetone, methyl ethyl ketone, methyl
chloride, kerosene, gasoline, naphtha and gas oil may
cause the sensor's external housing (ABS resin) to
degenerate and degrade, resulting in unstable output
voltage. Condensation of such solvents on the sensor
would cause adverse inuence on output voltage and
response speed. To reduce potential risk of exposure
to these solvents, installation of a lter or condenser
on the sensor is recommended.
4-2 Life expectancy
The life expectancy of the KE oxygen sensor is
expressed in %-hours as follows:
[Oxygen Concentration (%)] x [Exposure Time (hours)]
Accordingly, the life of KE-50 is approximately
1,800,000 %-hours, and the KE-25 is 900,000 %-hours.
The end of life for KE sensors is specied as the point at
which output voltage is reduced to 70% from the initial
Fig. 9a - Relationship of life expectancy vs.
O2concentration (Lo = life at 20.7% O2)
0
0.5
1.0
1.5
2.0
2.5
010 20 30 40 50 60 70 80 90 100
O2concentration (%)
Life expectancy ratio (L/Lo)
Fig. 8a - KE-25 temperature dependency
of output voltage
Fig. 8b - KE-50 temperature dependency
of output voltage
6
7
8
9
10
11
12
13
14
15
16
0 10 20 30 40
Output voltage (mV)
Temperature (˚C)
max.
min.
typ.
35
45
55
65
75
0 10 20 30 40 50
Temperature (˚C)
Sensor output (mV)
max.
min.
typ.

Revised 09/22 7
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
output voltage of the sensor. These facts indicate that
the expected life time in ambient conditions (21% O2
at 20˚C) is 10 years for KE-50 and 5 years for KE-25.
a) Relationship between expected life and O2 concentration
Figure 9a shows the relationship between life expectancy
and O2concentration for KE sensors. The Y-axis
indicates the ratio of life expectancy in a given O2
concentration (L) to life expectancy in natural air
(Lo). The greater the O2concentration, the shorter
the life expectancy. The inuence of atmospheric
pressure on life expectancy is estimated based on the
O2concentration in a given atmospheric pressure.
b) Relationship between expected life and storage temperature
Figure 9b shows the relationship between life
expectancy and ambient temperature. The Y-axis
indicates the ratio of life expectancy at a given
temperature (L) compared to life expectancy at
20˚C (Lo). A correlation exists between the sensor’s
life time and its storage temperature—the life time
becomes shorter as the storage temperature increases.
4-3 Long term stability
When used in normal air without any incidence of
improper use, both KE-25 and KE-50 show good long
term characteristics as illustrated in Figs. 10a and 10b
(see previous page).
Please note that there are various factors which may
inuence the life time of KE oxygen sensors in actual use
and that their life span can be variable.
5. Cautions
5-1 Required oxygen amount
KE sensors consume a small amount of oxygen
during the detection process. It is recommended that
these sensors be used under conditions where the air
exchange is greater than 2~3ml per minute to offset
the sensor's oxygen consumption. Please note that
sensors should be used under conditions where the
air exchange is greater than 200~300ml per minute in
order to obtain response speed specied in Table 1.
5-2 Mechanical strength against shock and vibration
Since mechanical shock and vibration may potentially
inuence the sensitivity characteristics of the sensor,
these factors should be avoided in actual usage.
Temporary changes/instability in the sensor's output
signal may result due to these factors, but the signal
may recover to its original state after the sensor is
Fig. 10a - KE-25 long term stability
Fig. 10b - KE-50 long term stability
Fig. 9b - Relationship of life expectancy vs.
temperature (Lo = life at 20˚C)
0
0. 5
1.0
1.5
2.0
2.5
0 10 20 30 40 50 60
Life expectancy ratio (L/Lo)
Temperature (˚C)
50
60
Time (hrs.)
Sensor output (mV)
01000 2000 3000 4000 5000 6000 7000 8000 9000
40
max.
min.
typ.
10
12
14
0500 1000 1500 2000 2500 3000 3500 4000 4500
Time (hrs.)
Sensor output (mV)
max.
min.
typ.

Revised 09/22 8
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
kept motionless in natural air/room temperature
for between several hours to several days. If the
mechanical shock or vibration is great, an irreversible
change in the output signal may occur due to
structural damage within the sensor. Shock absorbing
measures should be used to protect the sensor during
transportation or when used for applications in which
shock/vibration is likely to occur.
5-3 Position dependency
At all times the sensor is recommended to be kept
either horizontal or in the normal vertical position
(refer to side view in Figure 2) in order to prevent the
cathode from drying out. If this were to occur, the
sensor's output signal would uctuate.
5-4 Low O2concentration detection
When less than 1% O2is measured, offset voltage
(which appears at close to 0% of O2) should be
taken into consideration when calculating O2
concentration. For details, please refer to the document
Application Notes on Offset Voltage and Low Concentration
Measurement.
5-5 Storage conditions
To prolong the life expectancy of KE sensors, storage
at low temperature (in a refrigerator) and at low
oxygen concentration is recommended. Care should
also be taken to ensure that the lead wires are not
connected or shorted during storage as this may cause
slow response to oxygen.
If the sensor is stored in a 0% O2 environment for an
extended period of time, the sensor's offset voltage
(see Sec. 5-4) becomes lower and response speed to O2
will become slower. In this case, the sensor will be able
to recover to normal response speed after exposure
to a normal environment for a period of 24 hours.
However, if the sensor is stored in such a condition
for 3 days or longer, sensor characteristics may not
recover to the original state.
The absolute minimum storage temperature for the
sensor is -20˚C. Below this temperature, the sensor
may be damaged by freezing of the electrolyte,
resulting in possible leakage of the electrolyte.
The specied maximum storage temperature is 60˚C.
This is a result of the temperature limitation of ABS resin,
the material which is used to make the sensor’s body.
5-6 Inuence of condensation
Measures should be taken to prevent condensation
on the sensor because the output signal will degrade
and response speed will decrease, causing inaccurate
measurement. However, once condensation
dissipates, sensor characteristics will recover to
their original state.
5-7 Recommended input impedance
The sensor must be connected to equipment which
has an input impedance of 1000kΩ or greater. If not,
proper temperature compensation would not be
possible.
5-8 Sensor connection
The sensor must not have a counter-electromotive
force applied to it from any equipment to which it is
connected. Application of external electric potential
to the sensor's output terminals may cause temporary
instability in the output signal and reduced response
speed. However, removal of this condition and
subsequent aging in normal air for several days will
allow the sensor to recover to normal.
If reverse polarity or excessive voltage is applied
to the sensor, the characteristic change would be
irreversible due to the internal electrical damage
caused by this condition. For example, if several
10mV of reverse voltage were applied, the internal
electrode would be broken.
5-9 Disassembly or repair of the sensor
Disassembling or repair of the sensor should
be avoided because it will result in a change of
sensitivity characteristics. The reason for such a
change is related to the sensor’s structure. The most
important factor in determining sensitivity is the
condition of the cathode which is determined by
afxing the F.E.P. membrane with a suitable pressure
via tightening the plastic top. Loosening of the plastic
top will change the internal pressure and therefore
change the sensor’s sensitivity.
The plastic label covering the sensor's housing should
not be removed since the label is used as a seal to fasten
and immobilize the plastic top on the sensor's body.
5-10 Safety measures for electrolyte leakage
If the liquid electrolyte leaks due to sensor breakage,
care should be taken in handling the sensor, which

Revised 09/22 9
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
should immediately be placed into a plastic bag. The
liquid electrolyte is a weak aqueous acid solution
(pH=5~6) with an irritating odor. The liquid is non-
ammable. Since this solution contains lead acetate,
which is harmful to humans, contact with this liquid
should be avoided.
In case the liquid electrolyte contacts the skin or
clothing, wash with soapy water and rinse generously
with plain water. If the liquid electrolyte contacts
the eye, ush with water for at least 15 minutes
and obtain immediate medical assistance. In case of
breathing in of the electrolyte, ush the nasal cavity
thoroughly with water and seek immediate medical
assistance. If the electrolyte is swallowed, rinse the
mouth thoroughly with water and seek immediate
medical assistance.
5-11 Disposal
Spent KE-series oxygen sensors and leaked liquid
electrolyte should be disposed with utmost caution
to avoid environmental pollution, e.g. by entrusting
it to industrial waste disposal specialists.
5-12 When designing equipment using KE-series oxygen
sensors
Sensor characteristics may be affected by
environmental conditions of use, such as ambient
temperature, humidity, gas pressure, ow rate, etc.
Sensor performance should be evaluated under actual
operating conditions before usage.
6. Limited Warranty and Limitation of Liability
KE-series oxygen sensors shall be warranted for 12
months after the date of purchase from Figaro.
Provided that return of the sensor to Figaro is made
within the warranty period, if it is determined upon
reasonable inspection tests that any of the following
defects exists, returned sensors will be replaced free
of charge with a new sensor of the identical model:
1) The output voltage of the sensor in normal air
at 25˚C±1˚C/60±5%RH and atmospheric pressure
of 1013±5hPa is 70% or less than the initial output
voltage under the standard test conditions.
2) The output voltage change is not proportional to
the change in oxygen concentration.
The warranty of the replacement sensor will
continue for the warranty period of the original KE-
series product.
THIS WARRANTY SHALL NOT APPLY IN THE
EVENT OF FAILURE TO COMPLY WITH ANY
INSTRUCTIONS OR CAUTIONS PROVIDED
BY FIGARO, AND TO ANY KE-SERIES
PRODUCTS OR PORTIONS THEREOF WHICH
HAVE BEEN SUBJECTED TO ABUSE, MISUSE,
IMPROPER INSTALLATION, STORAGE OR
MAINTENANCE, OR IMPROPER OPERATION
UNDER THE CONDITIONS WHICH DEVIATE
SIGNIFICANTLY FROM NORMAL AMBIENT
AIR AND TEMPERATURE.
IN NO EVENT SHALL FIGARO ENGINEERING
INC. (SELLER) OR MAXELL, LTD.
(MANUFACTURER)BELIABLETOPURCHASER,
ITS CUSTOMER, ITS ASSIGNS OR AGENTS,
FOR ECONOMIC LOSS, INCIDENTAL OR
CONSEQUENTIAL DAMAGES WHETHER
BASED UPON WARRANTY, CONTRACT,
OR TORT INCLUDING NEGLIGENCE AND
PRODUCT LIABILITY WHETHER AT EQUITY
OR AT LAW, INCLUDING BUT NOT LIMITED
TO ANY DAMAGES FOR WORKMANSHIP
ARISING DIRECTLY OR INDIRECTLY FROM
USE OF THE KE-SERIES PRODUCTS.
KE-series oxygen sensors are designed, manufact-
ured and tested for industrial application only, and
that the products are not designed, manufactured,
tested, or intended specically for use in or
incorporation into articial respirators, ventilators
and/or other equipment for medical application,
or subassembly modules or parts thereof (“Medical
devices”).
Notwithstanding the foregoing above, in case that
the purchaser intends to use the KE-series products
for incorporation into or with the Medical devices,
which is against the foregoing, the purchaser shall
assume all risk for such use, and make an assessment
and judgement on tness of the KE-series products
for such use in the Medical devices and on safety
of the Medical devices using the KE-series products
based on evaluations of reliability of the KE-
series products to be carried out by the purchaser
as required for such use through a thorough
understanding of the contents in this Technical
Information and other technical information
provided by the Seller.

Revised 09/22 10
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
By purchasing the KE-series products and using
them for incorporation into or with the Medical
devices, the purchaser agrees to provide the Seller
upon request from the Seller with valid proof of
approvals and permissions required to manufacture
and sell such Medical devices in accordance with
applicable regional, national, and local laws and
regulations.
Figaro reserves the right to make changes without
notice to any products herein to improve reliability,
functioning or design. Information contained in
this document is believed to be reliable. However,
Figaro does not assume any liability arising out
of the application or use of any product or circuit
described herein; neither does it convey any license
under its patent rights, nor the rights of others.
www.garo.co.jp
Manufacturer: Maxell, Ltd.
Distributor: FIGARO ENGINEERING INC.
1-5-11 Senba-nishi
Mino, Osaka 562-8505 JAPAN
Tel: [phone]