Powered by 2 AA rechargeable batteries, UWBT Series measures different sensor inputs, such as thermocouple, RTD, relative humidity, and pH, and transmits data to smartphone or tablet via wireless Bluetooth communication from UWBT app running on iOS or Android™. App can be paired with multiple transmitters simultaneously and displays sensor data in digital, graph, or gauge format. Data can be logged locally on transmitter at speeds from 10 samples/sec to 1 sample/min.