Product Details
Low-power Laser Methane Sensor KGD-GAS-204
Product Introduction
The low-power laser methane sensor KGD-GAS-204 is a
high-performance gas analysis sensor independently developed by
KACISE. Based on the tunable laser absorption spectroscopy
technology, it uses a high-performance probe and a gas chamber
processed with a special technique. It features high precision,
high sensitivity, long service life, and stable performance. By
applying a temperature compensation algorithm, it is free from
interference of the usage environment and can operate stably under
harsh working conditions and in complex gas environments. The
product adopts a modular design, making it convenient to install.
Operations such as calibration and standardization of the product
can be carried out through the TTL communication interface. With
its low-power design, it is convenient for customers to maintain
and integrate.
Product Features
- Unique selectivity for methane
- Not interfered by other gases, water vapor or dust
- Ensures detection accuracy across the entire temperature and
concentration range
- Fast response speed, capable of rapid detection within 10 seconds
- Long service life (10 years) and low power consumption (15mA)
- Modular design, easy to integrate
Technical Parameters
Detection Principle | Tunable Semiconductor Laser Absorption Spectroscopy Technology
(TDLAS) |
Detection Range | 0~100% of the Lower Explosible Limit (LEL) |
Detection Accuracy | ±5% of the Lower Explosible Limit (LEL) |
Resolution | 0.1% of the Lower Explosible Limit (LEL) |
Response Time | T90 < 20 seconds |
Operating Temperature | -25 degrees Celsius to 55 degrees Celsius |
Operating Humidity | 0~98% Relative Humidity (non-condensing) |
Storage Conditions | -40 degrees Celsius to 85 degrees Celsius, 0~98% Relative Humidity
(non-condensing) |
Operating Voltage | 3.2 Volts to 5.5 Volts |
Output Mode | Transistor-Transistor Logic (3.0 Volts) |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.