netvox R718WAA User manual

Wireless Water Leak Detector / Temperature / Humidity Sensor
R718WAA
Wireless Water Leak Detector /
Temperature / Humidity Sensor
R718WAA
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...............................................................................................................................................................3
3. Main Features...........................................................................................................................................................3
4. Set up Instruction .....................................................................................................................................................4
5. Data Report ..............................................................................................................................................................5
5.1 Example of ReportDataCmd.............................................................................................................................6
5.2 Example of ConfigureCmd...............................................................................................................................7
5.3 Example for MinTime/MaxTime logic.............................................................................................................7
6. Installation................................................................................................................................................................9
7. Information about Battery Passivation ..................................................................................................................10
7.1 To determine whether a battery requires activation .......................................................................................10
7.2 How to activate the battery.............................................................................................................................10
8. Important Maintenance Instruction........................................................................................................................11

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1. Introduction
R718WAA is an alarm device for water leakage detection of netvox ClassA type device based on LoRaWAN open protocol,
which is compatible with LoRaWAN protocol. When the sensor of R718WAA detects water leakage, R718WAA will send
alarm information and temperature and humidity to the gateway. When the sensor detects that there is no water leakage, it will
send the information that the state returns to normal and the temperature and humidity to the gateway.
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.

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2. Appearance
3. Main Features
Apply SX1276 wireless communication module
2 section of ER14505 battery in parallel (AA size 3.6V / section)
Water leakage, air temperature and humidity detection
IP rating: Main body-IP65, water leakage sensor-IP67
The base is attached with a magnet that can be attached to a ferromagnetic material object
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.
Indicator
Function key
Temperature and Humidity Sensor
Water Leakage Sensor

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4.Set up Instruction
On/Off
Power on Insert batteries. (users may need a 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
Failed to join the network When the network cannot be added, it is recommended to check the device registration
information on the gateway or consult your platform server provider.
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
*For the sake of power saving, it is recommended to remove the battery when the device is not in use.

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5. Data Report
Data report configuration and sending period are as following:
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 water leak status, temperature,
humidity and battery voltage. The device sends data in the default configuration before any configuration is done.
Default setting:
MaxTime: 3600s (if there is special customized shipment, the setting will change according to the customer's requirements)
MinTime: 3600s (by default, the current voltage value is detected every min interval)
Battery Change: 0x01 (Unit:0.1v, 0.1V)
Temperature Change: 0x64 (Unit:0.01°, 1°C)
Humidity Change: 0x64 (Unit:0.01%, 1%)
Water leak detection:
When R718WAA detects water leakage, it will immediately report a leak status as "1"
When R718WAA does not detect water leakage, it will immediately report a leak status as "0"
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 to resolve uplink data.
http://www.netvox.com.cn:8888/page/index.

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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)
#Uplink 1: 01BE000A0B202005200000 // Version report
1st byte (01): Version
2nd byte(BE): DeviceType 0xBE －R718WAA
3rd byte (00): ReportType
4th byte(0A): Software Version, V1.0
5th byte (0B): Hardware Version, V1.1
6th ~9th byte (20200520): DateCode,2020.05.20
10th 11th byte (0000): Reserved
#Uplink 2: 01BE012406701A9E010000 // Status report
1st byte (01): Version
2nd byte(BE): DeviceType 0xBE －R718WAA
3rd byte (01): ReportType
4th byte(24): Battery －3.6V, 24(Hex) = 36(Dec), 36x0.1v=3.6v
5th 6th byte (0670): Temperature －16.48 °C , 0670(Hex)=1648(Dec), 1648x0.01°C = 16.48°C
7th 8th byte (1A9E): Humidity －68.14%, 1A9E(Hex)=6814(Dec), 6814x0.01% = 68.14%
9th byte(01): Status －1:on (leak)
10th 11th byte (0000): Reserved
Version Device
Type
Report
Type NetvoxPayLoadData
01 0xBE
0x00
SoftwareVersion
(1Byte)
Eg.0x0A—V1.0
HardwareVersion
(1Byte)
DateCode
(4Bytes)
eg 0x20170503
Reserved
(2Bytes)
fixed 0x00
0x01
Battery
(1Byte)
unit:0.1V
Temperature
(Signed2 Bytes)
unit:0.01°C
Humidity
(2Bytes)
unit:0.01%
Status
(1Byte)
0:off 1:on
Reserved
(2Bytes)
fixed 0x00

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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)
Description Device Cmd
ID
Device
Type NetvoxPayLoadData
Config
ReportReq
R718WAA
0x01
0xBE
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s) BatteryChange (1byte Unit:0.1v)
Temperature
Change
(2byte
Unit:0.01℃)
HumidityChange
(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 (2bytes Unit:s)
Battery
Change
(1byte Unit:0.1v)
Temperature
Change
(2byte
Unit:0.01℃)
HumidityChange
(2byte
Unit:0.01%)
(1)Configure R718WAA report parameters:
MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v、TemperatureChange= 1°C、HumidityChange=1%
Downlink：01BE003C003C0100640064 3C(Hex) =60(Dec)
Device returns：
81BE000000000000000000 (Configuration success)
81BE010000000000000000 (Configuration failure)
(2)Read Configuration:
Downlink：02BE000000000000000000
Device returns：
82BE003C003C0100640064 (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

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MaxTime MaxTime
Sleeping(MinTime) Sleeping(MinTime)
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange
value.
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 2H
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
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
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
When using it, the back of it can be adsorbed on the iron surface, or the two ends can be fixed to the wall with screws.
1.The Wireless Water Leak Detector/Temperature/Humidity Sensor
(R718WAA) has a built-in magnet (as Figure 1 below).
It can be attached to the surface with iron material during
installation.
To make the installation more secure, please use screws
(purchased separately) to fix the device on the wall or other
objects
Note:
Do not install the device in a metal shielded box or in an
environment surrounded by other electrical equipment to avoid
affecting the wireless transmission of the device.
3. When the sensor probe detects the leak, the device
will send an "alarm" message.
After remove the probe from the accumulated leakage
and drain the remaining water from the sensor, the
device will restore to the "normal" state and send the
"normal" status message.
2. Remove the 3M release paper (as the red part of the
above figure) on the back of the sensor probe and
attach it to the smooth ground that may accumulate
leakage (as the right figure).
The R718WAA can be used in the following scenarios:
Data centers and rooms.
File storage center.
Basement leakage detection
Water pipe leakage detection
The bottom of the cabin detection
This device is designed to detect water leakage and is not suitable
for detecting hazardous chemical, solvent, oil, fuel, strong acid or
other corrosive liquid.
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.

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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.