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Torch-Style Laser Methane Detector

Product Number：

LYJ30

Product Price:

$1200

Product Difference：

30 m torch-style configuration; 7075 aluminum housing, 350 g and 5 ppm·m sensitivity.

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Product Details

Handheld laser methane detector with pistol grip

Laser methane detector series features

Methane leak inspection around gas facilities and pipelines

TDLAS methane detection optical-path principle

Six torch and pistol methane detector models

Long-distance methane leak inspection

Laser methane detector response time

Methane-selective laser sensing and measurement range

Intrinsically safe design and protection markings

Touchscreen and reference-cell wavelength monitoring

Torch-style detector aluminum housing

Torch-style detector single-button control and Bluetooth app

Six methane detector models compared by distance and housing

Torch and pistol series technical specifications

Hengmei company team and instrument business overview

Product Overview

LYJ30 is a torch-style handheld laser methane detector in the 30 m configuration. It uses tunable diode laser absorption spectroscopy (TDLAS) to detect methane along the laser path, supporting remote inspection of suspected leaks.

The transmitter and receiver share a probe. The laser is aimed at a surface beyond the inspection area, and the receiver measures the returned light. Methane in the optical path absorbs part of the laser signal. The instrument calculates a path-integrated methane reading, displayed in ppm·m.

Key Features

Typical response time of 0.015 s, with a specified maximum of 0.03 s.
Built-in reference gas cell monitors the laser wavelength for self-calibration.
Narrowband optical filtering helps reduce sunlight interference.
Automatic optical-signal adjustment accommodates changes in reflected light strength.
7075 aluminum-alloy body with a hard-anodized surface; approximately 350 g.
Single-button operation, stored measurement records and a standard Bluetooth-connected app.
Optional laser ranging and spare rechargeable batteries.

Applications

Methane and methane-containing gas leak inspections around gas stations, distribution networks and pressure-regulation facilities.
Checks around valve pits, process areas, chemical and refining facilities, and overhead pipework.

Technical Specifications

Parameter	Specification
Model	LYJ30
Form factor	torch-style
Configured measuring distance	30 m
Detection principle	TDLAS
Response time	0.015 s typical; 0.03 s maximum
Detection range	0–100000 ppm·m
Sensitivity	5 ppm·m
Operating temperature	−20 to 50 °C
Operating pressure	40–160 kPa
Operating humidity	≤98% RH
Protection rating	IP68
Explosion-protection marking	Ex ib IIC T4 GB
Standby time	13–17 h
Body dimensions	Length 190 mm × diameter 54 mm
Housing material	7075 aluminum alloy
Weight	350 g
Operating voltage	4.5–5.5 V
Power consumption	1.2–2.5 W
Battery capacity	4 Ah
Detection laser	Class I
Indicator laser	Class IIIA
Basic error	0–1000 ppm·m, ±50 ppm·m; above 1000 to 100000 ppm·m, ±10% of true value

Related Models

Parameter	Specification
LYJ30	Torch-style, 30 m
LJY50	Torch-style, 50 m
LYY50	Pistol-style, 50 m
LYY100	Pistol-style, 100 m
LYY150	Pistol-style, 150 m
LYY200	Pistol-style, 200 m

Operation and Support

Switch on the detector, aim the laser at a surface beyond the suspected leak area, and scan the inspection path while observing the methane reading. Use the Bluetooth app to review stored measurement data. Laser ranging is available as an option.

Product Enquiries

Tell our sales representative your required inspection distance, preferred instrument style and inspection environment to discuss the appropriate model.

Sales Contact: Kyra
Email: Kyra@hmdzkj.cn
Tel / WhatsApp / WeChat: +86 13792642016

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