U-sensor (US)

The CartaSense compact wireless U-sensor monitors temperature and relative humidity in cold-chain and agricultural applications.


The U-sensor is designed as a one-time-use affordable device. No need for special skills, simply press a button, place it anywhere in a pallet or in the field. Battery powered, the U-sensor functions as a monitor, logger and a wireless repeater. In case of a network disconnection, data is stored in the U-sensor’s non-volatile memory until the wireless connection is reestablished. The logged data is then uploaded to the user’s communication server.

Utilizing CartaSense advanced mesh technology, the U-sensors strive to find a single or multi-hop path to a gateway. The U-sensors send measurements through nearby sensors automatically, compensating for frequent environmental changes and sensor movement.


Temperature and humidity monitoring
Robust self-healing and adaptive wireless mesh network
Remote measurement rate configuration
Multi-functional: Sensor, logger and wireless repeater in a single device

Maximum Measurement Range:Temperature: -35ºC to +65ºC Relative Humidity : 35% to 100% (from 0ºC to +60ºC)
Cumulative Operation Time:Over 160 days if connected to the WL sensor network at 0ºC, regular battery
Temperature Measurement Accuracy:±0.5ºC (in the range of -10ºC to +50ºC)
±0.8ºC (in the range of -35ºC to -10ºC &
+50ºC to +60ºC)
Temperature Resolution:+0.1ºC
Relative Humidity Measurement Accuracy:±5%
Memory Capacity:2700 measurement points
Power:CR2450 internal battery
Dimensions:88mm X 33mm X 13mm; 26gr.
Standards & Certifications:FCC,CE, FDA approved materials for food contact , ROHS and WEEE compatible materiales, WHO, EN 12830, EN/UL 60950