The Testo 810 simultaneously measures ambient air and surface temperature via infrared sensors at the touch of a button. For example the 810 thermometer can take a non-contact surface temperature of a radiator, or air vent and compare it with the air temperature of the room at the same time. The 810 features a 1-point laser sighting and 6:1 optics ratio, it's also very compact, convenient and easy to operate. Key Features: Thanks to its handy design, the testo 810 is quick to hand and easy to stow, for example, in a trouser pocket. The infrared measurement is carried out with a 1-point laser measurement spot marking and 6:1 optics. The emissivity can be individually set depending on the application, and with the help of the min/max function, the minimum and maximum values are shown in the display. Handy pocket-sized combo instrument for non-contact measurement of the surface temperature and air temperature measurement. 1-point laser measurement point marking and 6:1 optics Hold-function, display of max./min values and the difference between air and surface temperature. Settable emissivity and display illumination What's included Protective cap for safe storage Wrist strap Beltholder Instructions & Manuals Testo 826 T2 Infrared Thermometer With Topsafe - 0563 8282