Testo 830-T4 (0560 8314) Infrared Thermometer is designed to perform fast and accurate surface temperature measurements in the HVAC area and industry. At a distance of 1 m, the point diameter is only 3.6 cm. From a secure distance, even targets that are smaller, difficult to access, or dangerous can be measured without any problems. The new high resolution processor enables measurement results of unbelievable accuracy. And due to the min./max. function, you can define your temperature limit values according to your needs. To control the limits with the help of an audible and visual alarm has never been easier. In addition to infrared measurement, the 830-T4 Infrared Thermometer also offers the option of carrying out a contact measurement. Simply connect an optionally available TC type K temperature probe to the infrared measuring instrument. Testo offers a large selection of probes, like a fast-action surface probe with sprung thermocouple strip, as well as air probes and immersion/penetration probes.