BT5B wireless temperature and humidity sensor
Power supply:
2×1.5V – AAA alkaline batteries
Radio communication:
869.85 MHz, bidirectional
Maximum transmitter power:
< 5 dBm e.r.p
Radio range:
up to 500 m in open space
Antenna:
built-in
Operating temperature:
–20°C … +50°C (non-condensing)
Measurement resolution:
0.1°C
Temperature measurement accuracy:
±0.3°C in the 5–40°C range, ±0.5°C outside this range
Humidity measurement range:
0% ... 100%
Humidity measurement accuracy:
±3% in the 20–80% range, ±5% outside this range
Protection rating:
IP 20
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