Product Details
Mainstream End - Tidal Carbon Dioxide Sensor KGD - 412 for
Measuring End - Tidal CO₂ Concentration
Product Introduction
The KACISE end - tidal ETCO₂ sensor KGD - 412 is a mainstream ETCO₂
sensor module designed based on the non - dispersive infrared
detection principle, used for measuring the end - tidal CO₂
concentration. The KGD - 412 can be applied to monitors, medical
ventilators, and anesthesia machines. It has the advantages of
accurate and reliable readings, perfect waveforms, compact
appearance, and flexible installation.
Product Features
- Independent NDIR sensor technology
- 100Hz high - frequency sampling for fast response
- Adopts blackbody light source, with long service life and good
stability
- Interface and communication protocol that can match mainstream
monitors in the market
- Meets the requirements of standards such as EN IEC 55014 - 1:2021
and EN IEC 61000 - 3 - 2:2019
Technical Parameters
Items | Details |
Detection Principle | Non - Dispersive Infrared Technology (NDIR) |
Data Output | CO₂ concentration (mmHg), end - tidal CO₂, inhaled CO₂, respiratory
rate |
Detection Range | 0 - 150mmHg |
Resolution | 0.1mmHg |
Detection Accuracy | 0 - 40mmHg: ±2mmHg |
41 - 70mmHg: True value ±5% |
71 - 100mmHg: True value ±8% |
100 - 150mmHg: True value ±10% |
Respiratory Rate Range | 0 - 150BPM |
Respiratory Rate Accuracy | ±1 breath |
Stability | Short - term drift: not exceeding 0.8mmHg (4H) |
Long - term drift: maintaining accuracy specifications within 120H |
Input Voltage | 5.00V (±5%) |
Average Current | <120mA |
Peak Current | <250mA |
Initialization Time | Display within 15s, full specification within 2min (25°C) |
Compensation | Air pressure: 400 mmHg - 850 mmHg |
Working Temperature and Humidity | Operation: 0°C - 45°C, 10 - 90% RH, non - condensing |
Storage: -40°C - 70°C, < 90% RH, non - condensing |
Data Communication | RS232 |
Serial Port | 19200 - N - 8 - 1 |
Dimensions | 22 mm * 23 mm * 36mm |
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.