Remote transmission of measurement data via Bluetooth connection to an Android device. Transmission of latest measurement data into the office. power supply: 2100 mA NiMH rechargeable battery operation time: more than 1 month at frequent use operation temperature: - 10 °C to + 50 °C dimensions: 86 x 58 x 34 mm weight: approx. 175 g interfaces: bluetooth class 4, infrared