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Handheld laser remote methane detector is an advanced gas inspection device developed by Hanwei. It adopts the most advanced laser gas detection technology in the world, which will realize non-contact and remote detection for the places where the inspector cannot reach. The leakage point and source can be located and found accurately and quickly. This device will improve the work efficiency and reduce labor intensity.

Gas CH4
Principle TDLAS
Sensitivity 5ppm.m
Detection range 0~100000ppm.m


HRLD300 adopts Tunable Diode Laser Absorption Spectroscopic (TDLAS) technology, which has high sensitivity, quick response and good selectivity, that only response to Methane only while not to other hydrocarbons gas and result in false alarm.

It is powered by lithium battery with low consumption and long life. The software operation manual is intuitive and friendly with visual and audible alarm.  


It can be applied to the municipal gas pipeline, oil refineries, chemical plants in petroleum and petrochemical industry, metallurgical industry, power industry or any place that is possible to have gas leakage.

  • City Lifeline

  • City Lifeline

  • City Lifeline

  • City Lifeline


Gas CH4
Principle TDLAS
Sensitivity 5ppm.m
Detection range 0~100000ppm.m
Distance 50/150 meters
Response time T90 < 0.05S
Working temperature -30ºC~50ºC
Storage temperature -30ºC~60ºC
Humidity 0 ~ 99% RH (no condensation)
Explosion-proof grade: Ex ib IIB T4 Gb
Ingress protection IP66
Weight About 600g
Voltage DC3.7V
Working time 8 hours continuously
Display Color LCD screen
Lifespan 10 years
Alarming method Visual &audible alarm
Penetrating An object that can be penetrated by light without effecting detection, as through ordinary glasses.
Data transmission Blue-tooth
Accessory Battery Charger, wrist band

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