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MST LS4 Series Laser CH4 Sensor

2025-11-03

To Our Valued Customers and Industry Partners：

Maiya Sensor is proud to introduce the new MST LS4 Series Laser Methane Sensor, a high-precision, compact gas sensor based on Tunable Diode Laser Absorption Spectroscopy (TDLAS). It features small size, low power consumption, and high sensitivity, making it ideal for a wide range of applications.

HIGHLIGHTS

Stable and Reliable with Long Service Life

No frequent calibration is required. The sensor maintains high stability over long-term use, with a lifespan of over 5 years and an IP65 protection rating, making it suitable for various harsh environments.

Accurate Monitoring, Free from Interference

Utilizing TDLAS technology, the sensor is highly selective only to methane, unaffected by other gases, water vapor, or dust. It offers a measurement range of 0–100% VOL, with a resolution of 0.01% VOL and an error margin as low as ±0.03% VOL (0–1%) or ±5% of the true value (1%–100%)

Fast Response and Flexible Output

With a response time of ≤20 seconds, it supports both TTL serial port and 0.4V–2V analog signal outputs, enabling easy system integration and data reading.

Compact Design, Wide Applicability

Measuring just Φ20mm × 16.6mm and housed in a 304 stainless steel casing, it is shock-resistant, dustproof, and waterproof, suitable for both fixed and mobile detection scenarios.

Specification：


Detection Gas	CH4
Sampling Method	Diffusion
Principle	TDLAS
Response Time	≤ 20S
Measuring Range	0-1%VOL（10000ppm）/ 0-5%VOL / 0-100%VOL
Accuracy	0-1%	±0.03%VOL
	1%-100%	±5% VOL Truth value
Resolution	0. 01%VOL
Typical Life	> 5 years
Working voltage	3V-5 . 5V
Average operating current	< 100mA
Communication mode	TTL serial port data and dual 0.4V-2V analog signal outputs
Shell Material	304 stainless steel
Mechanical Dimensions	Φ20mm16.6mm (diameter height)
Levels of Protection	IP65