netvox R718AB User manual

Wireless Temperature and Humidity Sensor
R718AB
Wireless Temperature
and
Humidity Sensor
R718AB
User Manual
Copyright©Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be
maintained in strict confidence and shall not be disclosed to other parties, in whole or in part, without written
permission of NETVOX Technology. The specifications are subject to change without prior notice.

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Table of Content
1. Introduction.................................................................................................................................................................... 2
2. Appearance..................................................................................................................................................................... 2
3. Main Features ................................................................................................................................................................ 3
4. Set up Instruction........................................................................................................................................................... 4
5. Data Report.................................................................................................................................................................... 5
5.1 Example of ReportDataCmd.................................................................................................................................. 5
5.2 Example of ConfigureCmd .................................................................................................................................... 6
5.3 Example for MinTime/MaxTime logic.................................................................................................................. 7
6. Installation...................................................................................................................................................................... 9
7. Information about Battery Passivation........................................................................................................................ 11
7.1 To determine whether a battery requires activation............................................................................................. 11
7.2 How to activate the battery................................................................................................................................... 11
8. Important Maintenance Instruction ............................................................................................................................. 12

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1. Introduction
R718AB, mainly used to detect the temperature and humidity. It collects data over LoRa network and sends it to devices to be shown,
fully compatible with LoRa protocol.
LoRa Wireless Technology:
LoRa is a wireless communication technology dedicated to long distance and low power consumption. Compared with other
communication methods, LoRa spread spectrum modulation method greatly increases to expand the communication distance. Widely
used in long-distance, low-data wireless communications. For example, automatic meter reading, building automation equipment,
wireless security systems, industrial monitoring. Main features include small size, low power consumption, transmission distance,
anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and gateways
from different manufacturers.
2. Appearance
Built-in temperature and humidity sensor
Indicator
Function Key

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3. Main Features
Compatible with LoRa protocol.
2 x ER14505 AA lithium batteries (3.6V/ section)
Capable to detect the ambient temperature and humidity
Simple and easy installation
IP rating IP65
Compatible with LoRaWANTM Class A
Frequency hopping spread spectrum
Configuration parameters can be configured via a third-party software platform, data can be read and alerts can be set via SMS text
and email (optional)
Applicable to third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
Improved power management for longer battery life
Battery Life:
⁻Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
⁻At this website, users can find battery life time for variety models at different configurations.
1. Actual range may vary depending on environment.
2. Battery life is determined by sensor reporting frequency and other variables.

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4. Set up Instruction
On/Off
Power on Insert batteries. (users may need a flat blade screwdriver to open)
Turn on Press and hold the function key for 3 seconds till the green indicator flashes once.
Turn off (Restore
to factory setting)
Press and hold the function key for 5 seconds till green indicator flashes for 20 times.
Power off Remove Batteries.
Note
1. Remove and insert the battery; the device is at off state by default.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
3. At 1st -5th second after power on, the device will be in engineering test mode.
Network Joining
Never joined the network
Turn on the device to search the network to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
(not at factory setting)
Turn on the device to search the previous network to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Function Key
Press and hold for 5 seconds
Restore to factory setting / Turn off
The green indicator flashes for 20 times: success
The green indicator remains off: fail
Press once The device is in the network: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off
Sleeping Mode
The device is on and in the network
Sleeping period: Min Interval.
When the reportchange exceeds setting value or the
state changes: send a data report according to
Min Interval.
Low Voltage Warning
Low Voltage 3.2V

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5. Data Report
Data report configuration and sending period are as following:
5.1 Example of ReportDataCmd
FPort：0x06
Bytes 1 1 1 Var(Fix=8 Bytes)
Version DeviceType ReportType NetvoxPayLoadData
Version– 1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType– 1 byte – Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
Min Interval
(Unit:second)
Max Interval
(Unit:second) Reportable Change Current Change≥ Reportable Change
Current Change＜
Reportable Change
Any number between
1~65535
Any number between
1~65535 Can not be 0. Report per Min Interval
Report
per Max Interval
The device will immediately send a version packet report along with an uplink packet including temperature, humidity and
battery voltage.
The device sends data in the default configuration before any configuration is done.
Default setting:
MaxTime: Max Interval = 15 min = 900s
MinTime: Min Interval = 15 min = 900s
BatteryChange: 0x01 (0.1V)
TemperatureChange:0x0064 (1°C)
HumidityChange:0x0064 (1%)
Note:
The device report interval will be programmed based on the default firmware which may vary.
The interval between two reports must be the minimum time.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/page/index to resolve uplink data.

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Device Device
Type
Report
Type NetvoxPayLoadData
R718AB 0x13 0x01 Battery
(1Byte, unit:0.1V)
Temperature
(Signed2Bytes,unit:0.01°C)
Humidity
(2Bytes,unit:0.01%)
Reserved
(3Bytes,fixed 0x00)
Example of Uplink: 0113012406701A9E000000
1st byte (01): Version
2nd byte (13): DeviceType 0x13 －R718AB
3rd byte (01): ReportType
4th byte (24): Battery －24(HEX)=36(DEC),36*0.1v=3.6v
5th 6th byte (0670): Temperature －0670(HEX)=1648(DEC),1648*0.01°C=16.48°C
7th 8th byte (1A9E): Humidity －1A9E(HEX)=6814(DEC),6814*0.01%=68.14%
9th ~11th byte (000000): Reserved
Example of Uplink: 01130124FF391A9E000000
1st byte (01): Version
2nd byte (13): DeviceType 0x13 －R718AB
3rd byte (01): ReportType
4th byte(24): Battery －24(HEX)=36(DEC),36*0.1v=3.6v
5th 6th byte (FF39): Temperature －FF39(HEX)=-199(DEC),-199*0.01°C =-1.99°C -1.99°C
7th 8th byte (1A9E): Humidity －1A9E(HEX)=6814(DEC),6814*0.01%=68.14%
The value of temperature field is a signed integer and the highest bit represent positive (0) or negative (1).
If the value represent negative number, we need to calculate complement.
5.2 Example of ConfigureCmd
FPort：0x07
Bytes 1 1 Var (Fix =9 Bytes)
CmdID DeviceType NetvoxPayLoadData
CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)

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(1)Command Configuration:
MinTime = 1min,MaxTime = 1min,BatteryChange = 0.1v,TemperatureChange = 1℃,HumidityChange = 1%
Downlink：0113003C003C0100640064 003C(Hex) = 60(Dec) 0064(Hex) = 100(Dec)
Response：
8113000000000000000000（Configuration success）
8113010000000000000000（Configuration failure）
(2)Read Configuration:
Downlink：0213000000000000000000
Response：
8213003C003C0100640064（Current configuration）
5.3 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
Sleeping(MinTime) Sleeping(MinTime)
Note:
MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange value.
Description Device Cmd
ID
Device
Type NetvoxPayLoadData
Config
ReportReq
R718AB
0x01
0x13
MinTime
(2bytes Unit:s)
MaxTime
(2bytesUnit:s)
Battery
Change
(1byte Unit:0.1v)
Temperature
Change
(2byteUnit:0.01℃)
Humidity
Change
(2byte Unit:0.01%)
Config
ReportRsp 0x81 Status (0x00_success)
Reserved
(8Bytes,Fixed 0x00)
ReadConfig
ReportReq 0x02 Reserved (9Bytes,Fixed 0x00)
ReadConfig
ReportRsp 0x82 MinTime
(2bytes Unit:s)
MaxTime
(2bytesUnit:s)
Battery
Change
(1byte Unit:0.1v)
Temperature
Change
(2byteUnit:0.01℃)
Humidity
Change
(2byte Unit:0.01%)
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V

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Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
Sleeping(MinTime) sleeping sleeping sleeping
0H 15th M 30th M 45th M 1H
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
Notes :
1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect
data.
2) The data collected is compared with the last data reported. If the data variation is greater than the ReportableChange value, the
device reports according to MinTime interval. If the data variation is not greater than the last data reported, the device reports
according to MaxTime interval.
3) We do not recommend to set the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes up
frequently and the battery will be drained soon.
4) Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another cycle
of MinTime/MaxTime calculation is started.
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
REPORTS 3.6V
Wakes up and
collects data
REPORT 3.6V
Wakes up and
collects data
REPORTS 3.6V
Wakes up and collects data
3.5V |3.5-3.6|=0.1
REPORTS 3.5V
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data 3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
REPORTS 3.5V
Wakes up and
collects data
3.6V
Does not report
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.

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6. Installation
Battery installation steps
Please replace the battery by a professional
The device must use 2 sections of ER14505 battery (3.6v/section)
Step 1
Unscrew the four corners of the device with a screwdriver, as shown in the red circle below.
1.The Wireless Temperature and Humidity
Sensor (R718AB) has a built-in magnet (see Figure 1 below).
When installed, it can be attached to the surface of an object
with iron which is convenient and quick.
To make the installation more secure, use screws (purchased)
to secure the unit to a wall or other surface (see Figure 2
below).
Note: Do not install the device in a metal shielded box or in
an environment with other electrical equipment around it to
avoid affecting the wireless transmission of the device.
The figure shows the scene where the temperature and
humidity sensor (R718AB) is applied in the refrigerator.
It can also be applied to the following scenarios:
Restaurant (refrigerator or freezer)
Shopping mall supermarket (freezer)
Engine room
Environmental monitoring
Smart city and intelligent building
Storage and transportation of food and medicine
Flowers and other perishable foods
Wall or logistics refrigerator
When it is necessary to detect temperature or humidity.
2. When the temperature and humidity detected
by R718AB is compared with the last reported
values, when the temperature change is exceeded 1°C
(default) or the humidity change is exceeded 1%(default),it
will report current values.
3. Installation height recommendation:1-2 m
4. Installation ambient temperature: -20C° ~ 55°C
5. Installation direction recommendation: The output
port(sensor) is facing down, and the LOGO is facing towards
the person.

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positive
Step 2
Put the batteries into the battery bay of the device and note the positive and negative poles of the battery, please do not insert the
battery reversely.
Step 3
After inserting the batteries, put the lid back on and tighten the four screws.
Note:
Please do not disassemble the device unless it is required to replace the batteries.
Do not touch the waterproof gasket, LED indicator light, function keys when replacing the batteries. Please use suitable
screwdriver to tighten the screws (if using an electric screwdriver, it is recommended to set the torque as 4kgf) to ensure the device
is impermeable.
negative

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7. Information about Battery Passivation
Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many advantages
including low self-discharge rate and high energy density.
However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium anode
and thionyl chloride if they are in storage for a long time or if the storage temperature is too high. This lithium chloride layer prevents
rapid self-discharge caused by continuous reaction between lithium and thionyl chloride, but battery passivation may also lead to
voltage delay when the batteries are put into operation, and our devices may not work correctly in this situation.
As a result, please make sure to source batteries from reliable vendors, and it is suggested that if the storage period is more than
one month from the date of battery production, all the batteries should be activated.
If encountering the situation of battery passivation, users can activate the battery to eliminate the battery hysteresis.
ER14505 Battery Passivation:
7.1 To determine whether a battery requires activation
Connect a new ER14505 battery to a resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.
7.2 How to activate the battery
a. Connect a battery to a resistor in parallel
b. Keep the connection for 5~8 minutes
c. The voltage of the circuit should be ≧3.3, indicating successful activation.
Brand Load Resistance Activation Time Activation Current
NHTONE 165 Ω 5 minutes 20mA
RAMWAY 67 Ω 8 minutes 50mA
EVE 67 Ω 8 minutes 50mA
SAFT 67 Ω 8 minutes 50mA
Note:
If you buy batteries from other than the above four manufacturers, then the battery activation time, activation current, and required
load resistance shall be mainly subject to the announcement of each manufacturer.

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8. Important Maintenance Instruction
Kindly pay attention to the following in order to achieve the best maintenance of the product:
•Keep the device dry. Rain, moisture, or any liquid, might contain minerals and thus corrode electronic circuits. If the device gets
wet, please dry it completely.
•Do not use or store the device in dusty or dirty environment. It might damage its detachable parts and electronic components.
•Do not store the device under excessive heat condition. High temperature can shorten the life of electronic devices, destroy
batteries, and deform or melt some plastic parts.
•Do not store the device in places that are too cold. Otherwise, when the temperature rises to normal temperature, moisture will
form inside, which will destroy the board.
•Do not throw, knock or shake the device. Rough handling of equipment can destroy internal circuit boards and delicate structures.
•Do not clean the device with strong chemicals, detergents or strong detergents.
•Do not apply the device with paint. Smudges might block in the device and affect the operation.
•Do not throw the battery into the fire, or the battery will explode. Damaged batteries may also explode.
All of the above applies to your device, battery and accessories.
If any device is not working properly, please take it to the nearest authorized service facility for repair.