Product Details
Refrigerant (R290) Leakage Monitoring Gas Sensor KGD - AM - 201
Product Introduction
The refrigerant (R290) leakage monitoring gas sensor KGD - AM - 201
is a gas sensor for real-time monitoring of R290 refrigerant
leakage. Based on NDIR (Non-Dispersive Infrared) technology, it
features high precision, long service life, good long-term
stability, and high reliability. The sensor solution is convenient
for integration into safety alarm monitoring devices.
Product Features
- Adopts non-dispersive infrared absorption technology (NDIR).
- Fast response speed to meet the requirement of timely alarm.
- Ensures accuracy within the full temperature and full range.
- Self-heating design to prevent condensation, and it can recover
from frosting.
- Dustproof and waterproof grade: IP54.
- Designed service life of more than 15 years.
- Modbus485 digital communication output.
- Can pass CE/UL certification.
Technical Parameters
Detected Refrigerant Type | R290 |
Detection Range | 0 - 100%LEL |
Resolution | 0.1%LEL |
Detection Accuracy | ±2.5%LEL@0% - 25% LEL ±10% of the reading@25% - 100% LEL |
Data Refresh | ≤1s |
Response Time | T15%LEL≤30S@25%LEL, Immersion type |
Preheating Time | 600s |
Output Mode | RS485 communication |
Designed Service Life | 15 years |
Alarm Concentration Point | 15%LEL |
IP Protection Grade | IP54 |
Reference Standard | IEC 60335-2-40 |
External Operating Conditions | -40℃ to 85℃, 0 - 95%RH (non-condensing) |
Storage Conditions | -40℃ to 85℃; 0 - 95%RH (non-condensing) |
Operating Pressure | 80 - 110kPa |
Anti-Condensation | Anti-condensation function |
Power Supply Voltage | 5±0.5V DC, ripple wave≤100mV |
Average Operating Current | Average current≤380mA |
Peak Current | Peak current < 550mA |
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.