The S88 is a refresh of our popular S8 platform that defined modern sensor pin configurations. The same form factor, the same cost efficiency, designed for mass production and it of course come with the same pin configuration.

Defining attributes

  • Compliant with ANSI/ASHRAE Standard 62.1-2022
  • Compliant with RESET grade B
  • Compliant with WELL Building Standard® (WELL v2™)
  • Compliant with California Energy Code
  • Cost efficient
  • Low Power consumption
  • High Precision
  • Mass Production
  • Self-correcting

What we have done with the S88 is refresh its internals, ensuring a long period of support and availability moving forward. We’ve also made sure it meets the latest standards, including ASHRAE 62.1-2022 addendum ab. The appearance and I/O of the sensor remains identical, making sure that, should you choose, transitioning from the S8 to the S88 is as smooth as possible.

The S88 punches well above its weight in terms of both cost and size, and its ease of integration makes it an easy recommendation for a large variety of use cases.

We currently offer the S88 as a version optimized for low power applications and one for residential applications.

Article number 004-1-0101, S88 LP
Operating principle NDIR
Measured gas CO₂
Measurement range 0 - 10,000 ppm
Accuracy ±40 ppm ±3% of reading1
Operating range RH <85 % RH
Operation range °C <50 °C
Warm-up time < 10s
Response time < 40s
Power supply 4.5 - 5.25 V
Peak current 300 mA
Average current ≤ 18mA
Communication UART
Outputs Digital
Compliance ANSI/ASHRAE Standard 62.1-2022, California Energy Code, RESET Standard Grade B, WELL Building Standard® (WELL v2™)
Maintenance Maintenance free
Life expectancy > 15 years
Dimensions 33.9 x 19.8 x 8.7 mm (L x W x H)
Weight 5 g
Storage conditions -40 - 70°C
  1. ±75ppm Accuracy at 600, 1000 and 2500ppm @ sea level, 77 °F (25 °C) (ANSI/ASHRAE compliance)
Article number Product Features
004-1-0101 S88 LP S88 optimized for low power applications
004-1-0100 S88 Residential S88 intended for residential IAQ applications
Article number Product Description
Evaluation kit / SADK A refresh of our S8 for modern standards, including ANSI/ASHRAE Standard 62.1-2022 addendum ab