WL-TEMP-RH-CO2

Wireless room temperature, humidity and CO2 sensor:
• Sensor can be used with 5 VDC power supply and it can be a repeater.
• The CO2 measurement is self-calibrated, and its setting time is 1–3 weeks.
• During the first calibration period of 1–3 weeks, the sensor must be continuously connected to a power supply. After this, the calibration value is saved in the non-volatile memory
• Self-calibration is carried out continuously as long as the sensor is connected to a power supply
• During the first start-up, after 10 minutes, the sensor will set itself at the value of 650 ppm, which corresponds with high-quality indoor air in a room with a few people. At this stage, the sensor reliably measures any changes in CO2 concentrations, while the absolute measurement value may not be fully accurate.
• The self-calibration of the CO2 sensor is based on a daily minimum value, which the sensor assumes to be the level of fresh air. This is why the sensor is not suitable for applications where it is used 24/7.
• Room sensor has temperature and humidity measurement and also ”AUX-screw connector”. NTC10, ON/OFF state, transmitter or water leak sensor 0..100% can be connected to AUX- screw connector.
• Operating frequency 869MHz (6LoWPAN technology)
Technical information:
• Case: ABS plastic
• Dimensions: 90 x 96 x 26 mm
• Operating temperature: -40…+85 °C
• Operating voltage: 5 VDC
• Protection class: IP20
• Temperature:
• Meas. accuracy +10...60°C: ± 0,3°C
• Measurement area: -30...+100°C
• Humidity:
• Meas. accuracy 20...80%rH: ± 3 %rH
• Measurement area: 0...100%rH
• CO2:
• Meas. accuracy 400-10 000ppm: ± (30 ppm + 3%) between 400…10 000 ppm
• Measurement area: 0…40 000ppm
• Stabilation time: 1-3 weeks
• Any of the following measurements can be implemented by using the AUX connection:
• AUX temperature measurem:
• Measurement accuracy (25 °C): ± 0.3°C
• Measurement area: -30°C...+50°C
• AUX 0-10VDC transmitter:
• Measurement accuracy: 0.5% / 50mV
• Measurement area: scaleable