Testo infrared temperature measuring instruments testo 0560 8312 the 830 t2 infrared thermometer from testo has a laser measurement spot marker and 121 optics and is suitable for non contact surface temperature measurements in trade and industry with this thermometer measurement of surface temperature is accurate and fast with 2 measurements per second whats in the boxinfrared thermometerbatterycalibration protocol testo 0560 8312 830 t2 infrared thermometer