Combination probe for temperature, humidity, and CO2 measurements
Non-dispersive CO2 sensor
Infrared detector (NDIR)
Measuring range: 0~2000 ppm
Accuracy: ±60 ppm + 3% of reading at 22°C (72°F)
Calibration: Self-calibrating system
Response time: <5 minutes at 90% of slow speed
Warm-up time: 2 hours (first time) / 2 minutes (working)
Temp. Temperature and Relative Humidity Sensor
Bandgap Sensor Element
Capacitive Humidity Sensor
Measuring Range: 0°C~50°C 0-100% RH
Accuracy: ±0.5°C (20~40°C) ±3% RH (20% - 80% RH)
Display Resolution: 0.1°C 0.1% RH
Stability: ±0.1°C per year ±1% RH per year
Power Supply: 24VAC/24VDC
Power Consumption: 1.8W max, 1.0W average
LCD display measures CO2 + Temperature + Humidity
Dry Contact Output: 3x 0~10VDC outputs (default) or 4~20mA outputs for CO2 + Temperature + RH
Analog output can be selected via jumpers. Modbus RS485 RTU interface, 19,200 bps, 15 kV anti-scratch protection
Operating conditions: 0°C~50°C (32~122°C); 0~95% RH, non-condensing
Storage conditions: 0~50°C (32~122°C)/5~95% RH
Weight: 320g
IP54 protection without LCD display
CE certification