Wireless Smart Probe Testo 915i with immersion/penetration probe (TC Type K), including batteries and calibration protocol. Measure temperatures in liquids, semi-solid media and pastes: The wireless thermometer testo 915i with robust, fast-response immersion/penetration probe will enable you to tackle your temperature measurements with greater speed, flexibility and ease. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes – making it versatile. '• Smart Probe for wireless temperature measurement in a wide range of applications, thanks to a large selection of probes and compatibility with standard type K thermocouple probes • Robust, fast-response immersion/penetration probe (TC type K, class 1) with secure attachment via innovative locking mechanism in the handle, ideal for temperature measurements in liquids, pastes and semi-solid media, measuring range -50 to +400 °C • Easy operation, evaluation and documentation with free testo Smart App connection to smartphones, tablets or Testo measuring instruments (e.g. testo 400, testo 550s) with a range of up to 100 m