Testo 810 - 2 channel Infrared Thermometer With infrared thermometer with laser spot marking and integrated NTC air thermometer incl. protective cap, Batteries and calibration protocol and carry pouch. Testo 810 allows the measurement of air temperature and simultaneous non-contact surface temperature measurement in one instrument Measure air temperature and non-contact surface temperature with one instrument Infrared measurement with 1-point laser spot marking and 6:1 optics Display of differential temperature, e.g. between window and air Hold function and min./max. values Display illumination Incl. calibration protocol Protective cap for safe storage Incl. wrist strap and belt holder Emissivity adjustable Display of difference between air and surface temperature Operating temperature = -10 to +50 °C Battery type = 2 batteries Type AAA Battery life = 50 h Weight = 90 g Dimensions = 119 x 46 x 25 mm Probe - NTC Meas. range = -10 to +50 °C Accuracy = ±0.5 °C Resolution = 0.1 °C Probe - Infrared Meas. Range = -30 to +300 °C Accuracy = ±2.0 °C (-30 to +100 °C), ±2% of mv (remaining range) Resolution = 0.1 °C