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SenseCAP CO2, Temperature and Humidity Sensor with RS-485 & SDI-12
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£75.90
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The SenseCAP CO₂, 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 CO₂ 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 CO₂, 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
- CO₂ measurement range: 0 to 10,000 ppm
- CO₂ 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 (CO₂) Range | 0 ~ 10000 ppm |
| CO₂ Accuracy | ±(50 ppm + 3% of measured value) |
| CO₂ 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
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