Air Temperature and Humidity

Wireless miniature air temp/RH logger with Rotronic HC2-S3 sensor (±0.8% RH, ±0.1°C) and fast response. Stores 500k readings; 915 MHz wireless transfer via USB adapter. Works well in passively ventilated radiation shields.

Wireless miniature logger with air temperature and humidity sensor.

HC2-S3-ROTRONIC sensor (diameter 15 mm, length 82 mm) with an accuracy: ±0.8 % RH, ±0.1 K, at 23 ±5 °C and a sensor operating range of -50 to 100 °C and 0 to 100 %RH. Long-term stability <1 %RH per year, response time t 63: <15 sec, allowed wind speed: 20 m/s, with filter, probe adjustment by software: single and multipoint %RH and °C.  Logger (diameter: 2 cm, length: 14 cm) has non-volatile memory for up to 500.000 measured values. Data are transferred to a laptop with a special USB adapter via low-power wireless protocol (915 MHz). The operating temperature range is -40°C to +85°C.

Good experiences were made mounting this logger in passively ventilated radiation shields made by Young USA (model 41003P-24).