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SenseCAP CO2, Temperature and Humidity Sensor with RS-485 & SDI-12

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SenseCAP CO2, Temperature and Humidity Sensor with RS-485 & SDI-12

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The SenseCAP COâ‚‚, temperature, and humidity sensor is designed for reliable environmental monitoring in a range of indoor and outdoor settings such as greenhouses, urban infrastructure, farms, and transit stations. Using non-dispersive infrared (NDIR) technology, it provides accurate and continuous COâ‚‚ concentration readings, alongside temperature and humidity, output via standard digital interfaces.

The sensor supports both RS-485 (Modbus-RTU/ASCII) and SDI-12 communication protocols, making it compatible with most data acquisition devices and systems. With a wide 5–24V operating voltage range and low power consumption (down to µA in SDI-12 mode), it suits both fixed and mobile deployments. The built-in calibration functionality simplifies integration and maintenance, while optional manual calibration can be triggered via onboard keys or serial commands.

Internally, the sensor features a single air chamber with a dual-channel setup, enhancing measurement reliability. It uses a PTFE breathable membrane with a protective enclosure, improving air permeability and ensuring stable long-term performance. With a small form factor, it is easy to install and connect to data loggers like the SenseCAP S2100 LoRaWAN Data Logger or Sensor Hub 4G Data Logger for remote access.

Features

  • 3-in-1 sensor: Measures COâ‚‚, air temperature, and relative humidity
  • NDIR sensing principle with single-air-chamber, dual-channel design
  • Supports RS-485 (Modbus-RTU / Modbus-ASCII) and SDI-12 protocols
  • Wide power supply range: 5V to 24V
  • Factory-calibrated with optional custom calibration via buttons or commands
  • Low power consumption: µA-level current in SDI-12 mode
  • COâ‚‚ measurement range: 0 to 10,000 ppm
  • COâ‚‚ accuracy: ±(40 ppm + 3% of measured value)
  • PTFE breathable membrane and protective housing for improved stability
  • Compact, lightweight, and easy to install
  • Compatible with SenseCAP S2100 LoRaWAN® and Sensor Hub 4G data loggers
  • Suitable for use in greenhouses, cities, farms, and transit hubs

Specifications

Supply Voltage 5 ~ 24 V
Supporting Protocols Modbus -RTU RS485 / Modbus -ASCII RS485 / SDI-12 (v1.4)
IP Rating IP65 (shading measures are required for outdoor installation, and the equipment cannot be exposed to direct sunlight and rainwater for a long time)
Operating Temperature 0°C ~ +50°C (Due to CO₂ sensor limitations)
Working Humidity 0 ~ 95 %RH (no condensation)
Cable Length 2 meters
Measurement Parameters
Carbon Dioxide (COâ‚‚) Range 0 ~ 10000 ppm
CO₂ Accuracy ±(50 ppm + 3% of measured value)
COâ‚‚ Resolution 1 ppm
Air Temperature Range -40 ~ 85°C
Air Temperature Accuracy ±0.2°C
Air Temperature Resolution 0.01°C
Air Humidity Range 0 ~ 100 %RH
Air Humidity Accuracy ±1.8 %RH
Air Humidity Resolution 0.01 %RH

Resources

Package Contents

  • 1x SenseCAP CO2, Temperature and Humidity Sensor with RS485 & SDI-12
  • 1x Mounting bracket
  • 4x Self-drilling Screw - 2cm
  • 3x Self-drilling Screw - 6mm
$26.57

Original: $75.90

-65%
SenseCAP CO2, Temperature and Humidity Sensor with RS-485 & SDI-12—

$75.90

$26.57

Product Information

Shipping & Returns

Description

The SenseCAP COâ‚‚, temperature, and humidity sensor is designed for reliable environmental monitoring in a range of indoor and outdoor settings such as greenhouses, urban infrastructure, farms, and transit stations. Using non-dispersive infrared (NDIR) technology, it provides accurate and continuous COâ‚‚ concentration readings, alongside temperature and humidity, output via standard digital interfaces.

The sensor supports both RS-485 (Modbus-RTU/ASCII) and SDI-12 communication protocols, making it compatible with most data acquisition devices and systems. With a wide 5–24V operating voltage range and low power consumption (down to µA in SDI-12 mode), it suits both fixed and mobile deployments. The built-in calibration functionality simplifies integration and maintenance, while optional manual calibration can be triggered via onboard keys or serial commands.

Internally, the sensor features a single air chamber with a dual-channel setup, enhancing measurement reliability. It uses a PTFE breathable membrane with a protective enclosure, improving air permeability and ensuring stable long-term performance. With a small form factor, it is easy to install and connect to data loggers like the SenseCAP S2100 LoRaWAN Data Logger or Sensor Hub 4G Data Logger for remote access.

Features

  • 3-in-1 sensor: Measures COâ‚‚, air temperature, and relative humidity
  • NDIR sensing principle with single-air-chamber, dual-channel design
  • Supports RS-485 (Modbus-RTU / Modbus-ASCII) and SDI-12 protocols
  • Wide power supply range: 5V to 24V
  • Factory-calibrated with optional custom calibration via buttons or commands
  • Low power consumption: µA-level current in SDI-12 mode
  • COâ‚‚ measurement range: 0 to 10,000 ppm
  • COâ‚‚ accuracy: ±(40 ppm + 3% of measured value)
  • PTFE breathable membrane and protective housing for improved stability
  • Compact, lightweight, and easy to install
  • Compatible with SenseCAP S2100 LoRaWAN® and Sensor Hub 4G data loggers
  • Suitable for use in greenhouses, cities, farms, and transit hubs

Specifications

Supply Voltage 5 ~ 24 V
Supporting Protocols Modbus -RTU RS485 / Modbus -ASCII RS485 / SDI-12 (v1.4)
IP Rating IP65 (shading measures are required for outdoor installation, and the equipment cannot be exposed to direct sunlight and rainwater for a long time)
Operating Temperature 0°C ~ +50°C (Due to CO₂ sensor limitations)
Working Humidity 0 ~ 95 %RH (no condensation)
Cable Length 2 meters
Measurement Parameters
Carbon Dioxide (COâ‚‚) Range 0 ~ 10000 ppm
CO₂ Accuracy ±(50 ppm + 3% of measured value)
COâ‚‚ Resolution 1 ppm
Air Temperature Range -40 ~ 85°C
Air Temperature Accuracy ±0.2°C
Air Temperature Resolution 0.01°C
Air Humidity Range 0 ~ 100 %RH
Air Humidity Accuracy ±1.8 %RH
Air Humidity Resolution 0.01 %RH

Resources

Package Contents

  • 1x SenseCAP CO2, Temperature and Humidity Sensor with RS485 & SDI-12
  • 1x Mounting bracket
  • 4x Self-drilling Screw - 2cm
  • 3x Self-drilling Screw - 6mm