Wireless temperature and humidity loggers are used to measure both temperature and humidity in places which require constant monitoring of the prevailing conditions – museums, archives or churches to monitor atmospheric conditions affecting exhibits.

You can use a free mobile application to configure the device and read the data from its memory. If you add Efento Gateway, you can build a remote monitoring system.

TEMPERATURE SENSOR
Range: -35° to 70°C
Accuracy up to 0.25°C in the -20°C to +70°C range and 0.5°C in the -35°C to -20°C range
Resolution: 0.1°C
Drift: -0.1°C / year
Measurement interval: 1 minute to 10 days, configurable
Memory size: 60 000 measurements

HUMIDITY SENSOR
Humidity: 0 to 100% RH
Accuracy: 4% in the range of 0 to 80% and 7% in the range of 81 to 99%

RADIO MODULE
Communication: Bluetooth Low Energy (BLE)
Radio frequency: 2,4 GHz
Power: 2,5 mW (4 dBm)
Range: up to 100 m (LOS)
Communication standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0)
Transmission frequency: 1 s

BATTERY
Battery: 3,6 V, size AA, capacity 2 700 mAh (replaceable)
Battery operating time: at least 5 years (measurement interval: 15 min)

DIMENSIONS
27 x 71 x 71 mm
Weight: 80 g