Confined space gas leak monitoring terminal

The gas leak monitoring terminal for enclosed spaces is powered by batteries and can be installed in underground chambers (primarily gas valve chambers and sewage wells) according to monitoring requirements. It monitors the gas concentration in the underground chambers in real-time (depending on customer needs, it can monitor a single combustible gas or simultaneously monitor toxic and harmful gases such as hydrogen sulfide and carbon monoxide, with gas customization supported) and sends relevant data wirelessly to the intelligent safety management platform.

Product Features With a protection level of IP68 and an explosion-proof rating of Ex ib IIB T4 Gb, this device is an intrinsically safe equipment suitable for continuous monitoring and early warning of combustible gas or other gas concentrations, as well as the status of well covers and water levels in urban underground chambers such as gas valve wells and sewage wells It can conduct 24-hour real-time monitoring and set the detection interval simultaneously Supports alarming on computer platforms, via phone calls, text messages, and through the app Powered by batteries, featuring wireless data transmission, wire-free installation, remote program upgrade support, and easy maintenance It can simultaneously collect multiple parameters within the well chamber Product Specifications

Hardware	Operating power supply:	DC3.6V lithium-ion battery
	Interface:	1-channel laser methane sensor module
	1-channel methane detection sensor module (optional)
	1-channel temperature and humidity sensor (optional)
	1-channel water immersion sensor
	1-channel manhole cover tamper sensor (optional)
	Indicator light:	Power, fault, and alarm indicator lights in three colors
	Manual trigger switch:	Float-type magnetic switch
	Communication mode:	NB-IoT communication, Bluetooth communication
	Data storage:	Capable of local data storage
	Antenna:	NB-IoT external fiberglass communication antenna
Function	Methane gas leak detection:	Detects methane gas concentration, utilizing laser detection principle, featuring long lifespan and maintenance-free operation;
	Methane detection:	Capable of distinguishing between methane and natural gas;
	Event reporting:	Gas concentration, water immersion, abnormal movement of manhole cover, low battery, and other alarm events
	Data reporting:	Gas concentration, signal strength, battery level, water immersion status, manhole cover status, and positioning Information
	Device Information:	Device SN, setting values for various functional parameters, ICCID
	Data retransmission function:	In case of abnormal communication, uploaded data can be cached locally and re-uploaded to the platform during the next reporting cycle
	Local storage:	1600 pieces of gas concentration data and 1000 pieces of alarm data; capable of storing nearly one month's data Monthly data collection.
	Configuration parameters:	Supports both local and remote parameter configuration.
	Timing function:	Automatic timing, with time synchronized with the platform
	Remote upgrade:	Supports remote upgrades
	Battery management:	Monitor battery power and trigger a low battery alarm;
	Ultra-low power consumption design:	Ultra-low power consumption design extends battery life and provides ultra-long standby time;
Performance	Gas detection accuracy:	CH4,3%LEL-100%LEL;±5%LEL CO2, 400-50000ppm ± 5% F.S. (optional)
	Alarm concentration:	Default 25% LEL (configurable)
	Response time:	≤30s
	Sampling method:	Diffusion type
	Explosion-proof grade:	Ex ib IIB T4 Gb
	Operating temperature:	-40℃~+60℃
	Operating humidity:	≤95%RH (non-condensing)
	Ambient pressure:	86 kPa~106kPa
	Protection level:	IP68
	Salt spray level:	Salt spray level 72h (GB/T2423.17-2008)
	Electromagnetic compatibility:	Radio frequency electromagnetic field radiation immunity level 3 (GB/T17626.3-2016) Electromagnetic compatibility - Electrostatic discharge immunity - Level 4 (GB/T17626.2-2018)
	Service life:	The entire equipment is warranted for 5 years; Battery: Standard operating mode for 3 years Note: Standard operating mode, operating temperature +25℃, signal strength good Collect data once every 30 minutes, upload data once every 24 hours, with no alarms No abnormalities detected.
Installation	Installation method:	Supports wall-mounted installation