The Sentry series of fixed gas detectors, designed by our company, are low-power gas detectors utilizing high-performance gas sensors and microcomputer technology, combined with excellent low-power design. They offer advantages such as power saving, intuitive display, good repeatability, long service life, magnetic installation, wire-free, simple maintenance, and convenient operation. The detectors are battery-powered and can upload gas concentration information, battery level, and abnormal type information to the control host via wireless communication such as LoRa, 4G, and NB-IOT, either periodically or upon event (alarm) triggering. Combined with system software, it enables maintenance operations such as statistics, querying, and backup of gas concentration information at various monitoring points on site

Sentinel YQGG Series Fixed Gas Detector
Model: YQGG Key Features: Battery-powered, wireless transmission, data statistics, intelligent reporting, intermittent or continuous detection
Product Overview
Application Scenarios
Product Features
Battery-powered, with multiple wireless signal transmission options
Manual self-checking audible and visual alarm component
When the sensor falls off, it emits a fault sound and light signal
When the battery is low, an audible and visual alarm is triggered for prompting
Data statistics, intelligent reporting
Historical data
Product Specifications
Detected gases: combustible gases, toxic gases, oxygen, VOC
Detection principle: Contact the manufacturer
Measurement range: Contact the manufacturer
Accuracy: ±3%LEL (combustible gas) / ±3%FS (toxic gas)
Repeatability: ≤2%
Response time: T90 ≤ national standard
Operating mode: continuous operation
Power Supply: Battery-powered, DC 3.6 V
Battery specification: Lithium-thionyl chloride battery 19000 mAh x 3 (connected in parallel)
Battery Model: ER34615H
Output signal: Interval acquisition (parameters configurable), LoRa wireless data upload function
Sampling method: Free diffusion
Power consumption: ≤3 W
Sensor type: Infrared sensor
Display mode: Liquid Crystal Display (LCD)
Sensor lifespan: 5 years
Ambient temperature: -25℃ to +55℃
Relative humidity: <93%
Ambient pressure: 86 kPa to 106 kPa
Explosion-proof Mark: Ex ib ⅡB T4 Gb/Ex ib ⅢB T130℃ Db
Outline dimensions: L 230 mm×W 170 mm×H 85 mm
Product weight: approximately 2.9 kg
Gas Factors Detectable by This Product
These are the gas factors this model supports. Click to see detailed product compatibility (600+ factors →)



