The sensor is equipped with an external, temperature and humidity probe with a length of 1m, allowing measurements in places where the sensor cannot be placed directly.
Efento sensors transmit the data over cellular network (Narrowband IoT and LTE-M) and do not require any additional devices (router, gateway, etc.). Sensors are also equipped with Bluetooth Low Energy interface, which allows quick and easy configuration with a smartphone. Efento NB-IoT / LTE-M sensors can be integrated with any cloud platform.
TEMPERATURE SENSOR
Range: -40° do 125°C
Accuracy: 0.5 °C in the -20 °C to +70 °C range and 2°C in the -55 to -20 °C and+70 °C to +125 °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
Range: 0 to 100% RH
Resolution: 1%
Drift: -0.25% / year
Measurement interval: 1 minute to 10 days, configurable
Memory size: 60 000 measurements
LTE band (FDD)
LTE band (FDD): 8, 20, devices working on other bands available on request
3GPP: Release 13 (LTE-Cat M1)
Power: 23 dBm (LTE-M NB-IoT)
BLUETOOTH LE
Radio module frequency: 2,4 GHz
Power: 2,5 mW (4 dBm)
Range: up to 100 m (LOS)
Transmision period: 1 s
COMMUNICATION
Protocol: CoAP; Trasnsmission interval: 5 minutes – 10 days, configurable
SOFTWARE UPDATES
Over the air (with delta mechanism); Over Bluetooth Low Energy
BATTERY
Battery: 2 x AA 3,6 V, capacity 4 200 mAh (replaceable)
Battery operating time: up to 10 years
DIMENSIONS
27 x 71 x 71 mm
Weight: 100 g
PROBE 1 m