Product Details
Sidestream End - Tidal Carbon Dioxide Sensor KGD - 411 for
Measuring CO₂ Concentration
Product Introduction
The KACISE sidestream end - tidal carbon dioxide sensor is a CO₂
sensor module designed based on the principle of infrared
absorption spectroscopy, used for measuring CO₂ concentration. It
can be applied in devices such as monitors, nutritional metabolism
analyzers, and exercise cardiopulmonary function testers. It has
the advantages of high precision, good temperature characteristics,
low power consumption, fast response time, compact appearance, and
flexible integrated installation.
Product Features
- Independent NDIR sensor technology
- EMI system for anti - electromagnetic interference
- High signal - to - noise ratio and high detection accuracy
- Small size for easy integrated installation
- Low power consumption of 0.47W
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 | <100mA |
Peak Current | <200mA |
Initialization Time | Display within 15s, Full Specification Accuracy within 2min (25°C) |
Compensation | Air Pressure: 400mmHg - 850mmHg |
Operating Temperature and Humidity | Operation: 0°C - 55°C, 10 - 90% RH (Non - condensing) |
Storage: -40°C - 70°C, <90% RH (Non - condensing) |
Data Communication | TTL |
Lifetime | ≥5 Years |
Dimensions | 57.5mm * 23.7mm * 24mm |
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.