Milesight GS101 User manual
Residential Gas Detector
Featuring LoRaWAN®
GS101
User Guide
2
DANGER
If you hear the gas leak alarm or smell the gas even without an alarm, please keep calm and
carry out the following actions, not necessarily in the order given:
Extinguish all naked flames, including all smoking material;
Check and ensure gas appliances are off;
Open doors and windows to improve ventilation;
Do NOT use a phone, light a match, or turn on or off any electrical equipment indoors;
EVACUATE IMMEDIATELY and NOTIFY the gas supplier and/or 24h-service gas emergency
to test and make safe, any necessary repair carried out;
Do NOT re-enter the place until told to do so by authorities.
WARNING
Please read this guide carefully before operation and retain it for future reference.
This detector is not guaranteed to prevent personal injuries or property damage associated
with a gas leak. Please ensure that your gas appliances and piping systems are properly
installed, used and maintained to reduce the possibility of a gas leak.
This installation should strictly comply with the electrical safety regulations of the local
region.
The output installation with other appliances and gas valves should be conducted by a
qualified service person. Do not overload the output maximum capacity so as to avoid
damage to the detector.
Do not modify, disassemble, strike or crush the device, this will cause the fault alarms.
Do not expose the detector to corrosive gas, silicon vapor or high levels of volatile organic
compounds.
Keep the device away from the water to prevent damage to the detector and electric shock.
Do not paint or cover the device, which may block the air inlets and interfere with the
detector work.
Keep the device out of children’s reach.
Do not place your ear directly against or in close proximity to the device when it is alarming.
3
Declaration of Conformity
GS101 is in conformity with the essential requirements and other relevant provisions of the CE,
FCC, and RoHS.
Copyright © 2011-2022 Milesight. All rights reserved.
All information in this guide is protected by copyright law. Whereby, no organization or individual
shall copy or reproduce the whole or part of this user guide by any means without written
authorization from Xiamen Milesight IoT Co., Ltd.
For assistance, please contact
Milesight technical support:
Email: iot.support@milesight.com
Tel: 86-592-5085280
Fax: 86-592-5023065
Address: Building C09, Software Park III,
Xiamen 361024, China
Revision History
Date
Doc Version
Description
Aug.2, 2022
V 1.0
Initial version
4
Contents
1. Product Introduction ......................................................................................................................... 5
1.1 Overview ...................................................................................................................................5
1.2 Features ................................................................................................................................... 5
2. Hardware Introduction ...................................................................................................................... 5
2.1 Packing List ..............................................................................................................................5
2.2 Hardware Overview ................................................................................................................. 6
2.3 Wiring ........................................................................................................................................6
2.4 LED and Button Patterns .........................................................................................................7
2.5 Dimensions .............................................................................................................................. 8
3. Operation Guide .................................................................................................................................8
3.1 Basic Configuration ................................................................................................................. 8
3.2 LoRaWAN Settings .................................................................................................................. 9
3.3 Basic Settings ........................................................................................................................12
3.4 Historial Record Storage .......................................................................................................13
3.5 Maintenance .......................................................................................................................... 14
3.5.1 Upgrade ....................................................................................................................... 14
3.5.2 Backup .........................................................................................................................14
3.5.3 Reboot and Reset ....................................................................................................... 15
4. Installation ....................................................................................................................................... 16
5. Maintenance ....................................................................................................................................18
6. Device Payload ................................................................................................................................ 18
6.1 Basic Information .................................................................................................................. 18
6.2 Sensor Data ........................................................................................................................... 19
6.3 Downlink Commands ............................................................................................................ 20
5
1. Product Introduction
1.1 Overview
GS101 is a LoRaWAN®residential gas detector to detect the natural gas leak and send alarms.
When the concentration caused by gas leak reaches the preset threshold, the detector will
trigger LED light alarm and buzzer sound alarm, it also supports controlling outputs to close the
gas valve and open the vent fans to prevent potential accidents.
Apart from local alarms, GS101 can also report the normal status of the device and alarm
messages remotely by the use of LoRaWAN®technology. Integrating with Milesight LoRaWAN®
gateway and Milesight IoT Cloud solution, users can monitor all the sensor data and control the
device remotely and visually.
1.2 Features
Built-in semiconductor gas detection sensor with 5-year-long working life
High sensitivity gas leak detection and support 8% LEL alarm threshold
Equipped with buzzer and light indicators to indicate the device powered, faulty, alarmed
and invalid status
Equipped with a test button to test the device’s normal or abnormal status
Equipped with relay outputs for external appliances such gas valves and vent fans, reducing
potential accidents
Store 800 historical records locally in 7 types
Easy configuration via NFC
Milesight IoT Cloud compliant
2. Hardware Introduction
2.1 Packing List
1 × Residential
Gas Detector
1 ×
Power Adapter
2 ×
Wall Mounting Kits
1 ×
Warranty Card
1 ×
Quick Guide
6
If any of the above items is missing or damaged, please contact your sales Representative.
2.2 Hardware Overview
Note: The historical record interface is only for professional use. Users can use Milesight
ToolBox App to read the historical records.
2.3 Wiring
Wiring Diagram
The relay output can connect the device up to 250VAC/10A, and the solenoid valve output is a
12V/100ms pulse output. When the alarm is triggered, the relay output will open the fan and
solenoid valve output will send a pulse to close the valve; when the alarm is dismissed, the relay
output will close the fan, and the valve status will not change. You can open the solenoid valve
manually or via send downlink commands.
7
Wiring Step
Insert a flathead screwdriver into the square holes and insert the wire into the circle holes, then
release the screwdriver and ensure the cable is locked.
Note: power off all devices when wiring, do not touch the bare wires after the device is powered
on.
2.4 LED and Button Patterns
Status/Function
LED
Buzzer
Warm-up Time (about 180s)
All Blinks
Beeping twice when the
warm-up complete
Work Properly
Steady Power Light On, While
Other Lights Off
/
Abnormal Working/
Collection/Output
Steady Fault Light On, While
Other Lights Off
Beep Once Every 0.5s
Threshold Alarm: 8% LEL
Steady Alarm Light On, While
Other Lights Off
Keep Beeping
End of Working Life
Invalid Light Blinks, While
Others Off
Beep Once Every 0.5s
Test: Press the button (≤3s)
when device is working properly
All Lights Blink until the Test
Complete
Beep 1s
8
Mute: Press the button (≤3s)
when device is in alarm status
Steady Alarm Light On, While
Other Lights Off
Stop Beeping for 1
Minute
Reboot: Hold on the button for
3s to 10s
All Lights Blink Slowly
/
Reset to Factory Default: Hold
on the button for more than 10s
All Lights Blink Quickly
/
2.5 Dimensions(mm)
3. Operation Guide
3.1 Basic Configuration
1. Connect the outputs to the solenoid valve, fan or other devices.
2. Power on the detector via default power adapter and wait for about 180s for the warm-up
process. When the warm-up finishes, the buzzer will beep twice and all indicators will stop
blinking except for the Power indicator.
3. Press the Test button to check if the LED indicators and buzzer work properly, if the relay
output can open the fan and valve output can close the gas valve. After testing, everything will
recover back to normal status except the gas valve, please turn on the valve manually.
4. Download and install “Milesight ToolBox” App from Google Play or Apple App Store.
5. Enable NFC on the smartphone and launch Milesight ToolBox.
6. Attach the smartphone with the NFC area to the device to read device information. Basic
information and settings of the device will be shown on ToolBox App if it’s recognized
successfully. You can read and configure the device by tapping the Read/Write device on the
App. To order to protect the security of the device, please change the password when first
configuration. The default password is 123456.
9
Note:
1) After the warm-up, if the device is powered off for a short time, it will not warm up again.
2) If the device detects the threshold reaches during the warm-up, it will stop warming up and
send alarms.
3) Ensure the location of smartphone NFC area and it’s recommended to take off phone case.
4) If the smartphone fails to read/write configurations via NFC, keep the phone away and back
to try again.
5) GS101 can also be configured by a dedicated NFC reader, which can be purchased from
Milesight IoT.
3.2 LoRaWAN Settings
LoRaWAN settings are used for configuring the transmission parameters in LoRaWAN®network.
Basic LoRaWAN Settings:
Go to “LoRaWAN Settings” to configure join type, App EUI, App Key and other information. You
can also keep all settings by default.
10
Parameters
Description
Device EUI
Unique ID of the device which can also be found on the label.
App EUI
Default App EUI is 24E124C0002A0001.
Application Port
The port is used for sending and receiving data, the default port is 85.
Join Type
OTAA and ABP mode are available.
LoRaWAN Version
V1.0.2, V1.0.3, V1.1 are available.
Work Mode
It’s fixed as Class C.
Application Key
Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
Device Address
DevAddr for ABP mode, default is the 5th to 12th digits of SN.
Network Session
Key
Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Application
Session Key
Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
RX2 Data Rate
RX2 data rate to receive downlinks.
RX2
Frequency/MHz
RX2 frequency to receive downlinks.
Spread Factor
If ADR is disabled, the device will send data via this spread factor.
Confirmed Mode
If the device does not receive ACK packet from the network server, it will
resend data once.
Note: alarm packets and alarm dismissed packets are fixed as confirmed
packets.
Rejoin Mode
Reporting interval ≤ 30 mins: the device will send a specific number of
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