Product Details
Electrochemical Formaldehyde Sensor KGD - HCHO - 103
Product Introduction
The KGD - HCHO - 103, the fourth-generation formaldehyde sensor, is
a gas concentration sensor based on the electrochemical principle.
It adopts a dual-channel structural design, combined with a unique
electrolyte packaging technology. Through mathematical algorithms
and scientific multi-point calibration, it enables the simultaneous
output of formaldehyde, VOC, and TVOC. With a built-in temperature
and humidity digital sensor, and combined with intelligent
algorithms, the product provides more accurate detection and more
convenient application.
Product Features
- Resolution as high as 1ppb.
- Highly integrated module, capable of simultaneously outputting
parameters such as formaldehyde, VOC, and TVOC.
- Full-range temperature and humidity compensation.
- Unique dual-channel design, with alcohol cross-interference <
1%.
- Resistant to alcohol poisoning and has a fast recovery time.
- Multiple communication methods are optional: URAT, IIC, PWM.
- Good long-term stability, with a service life of up to 6 years.
Technical Parameters
Detected Gases | Formaldehyde, VOC |
Detection Range | Formaldehyde: 0 - 1ppm VOC: 0 - 10ppm |
Formaldehyde Detection Accuracy | The larger value of ±30ppb or ±10% (Under the environmental
conditions of 25±2℃, 50±10%RH) |
Response Time T90 | 50s (@25±2℃, 50±10%RH environmental conditions) |
Preheating Time | 100s |
Operating Conditions | -10℃ to 50℃; below 15 - 95%RH (non-condensing) |
Storage Conditions | -20℃ to 50℃; below 15 - 95%RH (non-condensing) |
Operating Voltage | DC(+3. 5V ~ +5.5V) |
Operating Current | <15mA |
Communication Method | 1. UART_TTL(3.3V) 2. PWM (Reserved) 3. IIC (Reserved) |
Product Dimensions | W23H32D8 |
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.