SRH Series Industrial Grade CO₂ Sensor SRH Series (A/B)
Gas Sensor Modules

SRH Series

Industrial Grade CO₂ Sensor SRH Series (A/B)

Model
SRH Series
Category
Gas Detectors & Alarms › Gas Sensor Modules

Parameters: CO2

IndustriesIndustrial Process
Measurement PrincipleNDIR
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Overview

The SRH Series are miniature industrial NDIR CO2 sensors for safety and alarm devices, incubators, greenhouses, HVAC and cold storage. A heated IR source keeps the chamber warmer than ambient to avoid condensation, the PCB is corrosion-treated and the output is linearized and temperature compensated.

Key Features

  • NDIR technology with long lifespan
  • Diffusion sampling, compact size, easy handling
  • High precision, less maintenance, fast response, stable performance
  • Internal temperature compensation
  • Corrosion prevention
  • Detectivity level at 100ppm

Measured Parameters

ParameterMeasuring Range
CO20~5000 ppm / 0~1, 2, 5, 10, 20 %Vol

Specifications

PrincipleNDIR
Measurement GasCO2
Measurement Range0-5000ppm, 0-10000ppm, 0-2%Vol, 0-5%Vol, 0-10%Vol, 0-20%Vol
Response TimeT90<25s
OutputUART_TTL (2.5-3.3V) / 0.4-2V DC
Zero Drift±3%FS/year
Working Condition-40 ~ 70℃, 0~95%RH (non-condensing)
Storage Condition-40 ~ 85℃, 0~95%RH (non-condensing)
Power Supply3.3~5.5V DC
Working Current55~60mA
Lifespan10 years
DimensionA series Dia20*H19mm, B series Dia20*H16.6mm

Applications

  • Refrigerant leakage
  • Greenhouses
  • CO2 incubators
  • Refrigerators and cold storage

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