netvox S31502 User manual

Wireless Reed Switch/PIR/Glass Break Sensor
Model:S31502
Wireless Reed Switch/
PIR/Glass Break Sensor
S31502
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 Contents
1. Introduction ............................................................................................... 2
2. Appearance ................................................................................................2
3. Features......................................................................................................3
4. S31502 Sensor Function............................................................................ 3
5. Set up Instruction....................................................................................... 5
6. Data Report................................................................................................6
7. Important Maintenance Instruction........................................................... 9

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1. Introduction
S31502 is a multi-sensor device based on Amazon Sidewalk. It can be used to implement door
magnetism switch detection, PIR detection, and glass breaking state detection.
Amazon Sidewalk：
Amazon Sidewalk is a shared wireless network that uses Amazon Sidewalk Bridges, such as compatible
Amazon Echo and Ring devices, to enable communication among devices communicating on the network.
Amazon Sidewalk enables reliable, low-bandwidth, and long-range connectivity at home and beyond. It
connects IoT devices and applications such as outdoor lights, motion sensors, and location-based devices. It
uses Bluetooth Low Energy for short-distance communication and CSS and FSK radio protocols at 900
MHz frequencies to cover longer distances.
2. Appearance
PIR
Indicator
Glass Break
Reed Switch
Function Key

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3. Features
Compatible with Amazon Sidewalk
Powered by 2 x 3V CR2450 button batteries
Simple operation and setting
Low power consumption and long battery life
Note: Please refer to http://www.netvox.com.tw/electric/electric_calc.html for battery life calculation and
other detailed information
4. S31502 Sensor Function
(1) Reed Switch
Detect the opening and closing state of the reed switch.
Open: report 1
Close: report 0
➢The reed switch needs to be fixed when used, such as the double sided tape.
(2) PIR
Detect infrared
There are people: report 1
There are no people: report 0
➢Report follows IR disable time and IR detection time rules.
IR detection time rules:
IRDisableTime and IRDectionTime are parameters defining S31502’s behavior after it detects motion.
IRDisableTime is the sampling period while IRDetectionTime is detecting period.
By default, IRDisableTime is 30 seconds and IRDetectionTime is 5 minutes.
When S31502 is triggered, S31502 will be turned off for first 70% of IRDisableTime to save power and
then turned on for rest 30% of IRDisableTime.
If living creature is detected during the rest 30% of IRDisableTime, the IR delay time will be
extended for another IRDetectionTime until no infrared signal is detected.
If no living creature is detected during IRDetectionTime, S31502 will report un-occupied along with

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other sensor status.
Example1:
While IRDetectionTime is 60 secs and IRDisableTime is 30 secs, no living creature is detected after
triggered.
S31502 will report un-occupied after 60 secs(IRDetectTime).
Example2:
While IRDetectionTime is 60 secs and IRDisableTime is 30 secs, living creature is detected during 25th sec.
S31502 will restart IR detect procedure(IRDetectionTime).
No living creature is detected during next IRDetectionTime and S31502 therefore report un-occupied.
(3) Glass Break
No broken glass detected: report 0
Broken glass detected: report 1
Turn on IR for 9s
Turn on IR for 9s
IRDisableTime = 30s
IRDetectionTime = 60s
IRDisableTime = 30s
PIR is off for 21s
PIR is off for 21s
25s
9s
21s
IRDisableTime = 30s
IRDetectionTime = 60 secs
IRDisableTime = 30s
Triggered
9s
21s
21s
4s

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5. Set up Instruction
--- On/Off ---
Power on/Turn on Insert batteries.
Press function key until the green indicator flashes once.
Turn off
(Reset to factory setting)
Press the function key for more than 8 seconds, and the green indicator
light will flash continuously.
Release the key after the flash starts, and the device will automatically
shut down after the flash ends.
(Indicator light display: the indicator light will flash once every 2s to
prompt the current pressing duration)
Note:
On/off interval is suggested to be about 10 seconds to avoid the
interference of capacitor inductance and other energy storage
components.
--- Network Joining ---
Never joined the network
Turn on the device to search the network.
The green indicator stays on for 5 seconds: Success
The green indicator remains off: Fail
Had joined the network
(without factory resetting)
Turn on the device to search the previous network.
The green indicator stays on for 5 seconds: Success
The green indicator remains off: Fail
Fail to join the network
The devi
ce should be close to the sidewalk gateway while joining the network.
--- Function Key ---
Press the function key for
more than 8 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

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Press and hold the key for 4
seconds
Turn off the infrared detection function.
*Applicable to device with PIR
--- 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 Voltage2.4V
6. Data Report
When the device is turned on, it will immediately send a version package.
Default setting:
Max Interval: 0x0E10 (3600s)
Min Interval: 0x0E10 (3600s) (Automatically checking the current voltage every Min Interval)
Battery Change: 0x01 (0.1V)
Note:
The device report interval will be programmed based on the default firmware.
The interval between two reports must be the minimum time.

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Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e.
BatteryVoltageChange=0.1V
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless
BtteryVoltageChange value.
Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e.
BatteryVoltageChange= 0.1V.
MaxTime
0H 15th M 30th M 45th M 1H 2H
MaxTime
MaxTime
Sleeping (MinTime)
Sleeping (MinTime)
Wake up and collects data
REPORTS 2.5V
Wakes up and collects data
REPORTS 2.7V
Wakes up and collects data
REPORTS 2.8V
Wakes up and collects data
2.8V
Does not report
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORT 2.8V

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Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e.
BatteryVoltageChange= 0.1V.
MaxTime
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H10th M
Note:
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 change value 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
REPORTS 2.8V
Wakes up and
collects data
2.7V |2.7-2.8|=0.1
Wakes up and
collects data
2.7V Does not report
Wakes up and
collects data
2.7V Does not report
Wakes up and
collects data
2.7V Does not report
Wakes up and
collects data
2.7V Does not report
Wakes up and
collects data
REPORTS 2.7V
Wakes up and
collects data
2.8V Does not report
Users push the button,
REPORTS 2.7V.
Recalculate MaxTime

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7. Important Maintenance Instruction
Your device is a product of superior design and craftsmanship and should be used with care. The following
suggestions will help you use the warranty service effectively.
•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.