CO₂ Sensor

The S88 is an upgrade to our popular S8 platform, which defines modern sensor pin configurations. It retains the same form factor, the same cost-effectiveness, and is designed for mass production, while of course continuing the same pinout.

Product Features

1. Compliant with ANSI/ASHRAE Standard 62.1-2022
2. Compliant with RESET Level B
3. Aligned with the WELL Building Standard® (WELL v2™)
4. Complies with California energy regulations
5. Cost-effective
6. Low power consumption
7. High precision
8. Suitable for large-scale production
9. Self-correction function

Downloads

S88 Specification Sheet S88 Specification Sheet2

Specifications

How it works: Non-Dispersive Infrared (NDIR)
Detection gas: Carbon dioxide (CO₂)
Measurement range: 400–10,000 ppm
Accuracy: ±40 ppm ±3% reading
(±75 ppm accuracy at sea level, 25°C, 600, 1000 and 2500 ppm, ANSI/ASHRAE compliant)
Range: <50°C, <85% RH
Warm-up time: <10 seconds
Response time: <30 seconds
Power supply: 4.5 - 5.25 V
Peak current: 300 mA
Average current: ≤18 mA
Communication interface: Modbus communication protocol, UART
Output: Digital signal
Standards: ANSI/ASHRAE Standard 62.1-2022, California Energy Code, RESET Standard Grade B, WELL Building Standard (WELL v2™)
Maintenance requirements: maintenance-free
Service life: more than 15 years
Dimensions: 33.9 x 19.8 x 8.7 mm (L x W x H)
Weight: 5 g
Storage conditions: -40°C to 70°C