Store closing sale !!! Box of 10 Pro GP 300 thermometer worth £130 The Thermometer Pro GP-300 is a non-contact thermometer that uses infrared sensor technology for accurate readings. It features a digital display and is powered by batteries. FDA 510K compliant, this thermometer is designed for use in health care settings and is compact in a sleek white design. With the set including batteries, this thermometer is convenient and reliable for monitoring temperatures in a variety of settings.