This professional non-contact UNI-T UT306C infrared thermometer can quickly and accurately determine surface temperature in a temperature range of -50°C to +500°C by measuring the infrared energy radiated by the target surface. To make it easier and more intuitive to aim the device at the target surface, a ring laser is built in, which allows you to clearly see the spot you are aiming at. The distance-to-spot ratio of this device is 12:1. This thermometer can withstand drops from a height of 1 meter. It is possible to pre-set the emissivity of the measured surface in the range of 0.1 to 1.0. Preset functions and measured values are displayed on a bright and high-contrast EBTN color display, and threshold values are indicated by a buzzer and on the display. Indication of minimum, maximum, and average temperatures and deviations from the average (MIN, MAX, AVG, DIF) is possible. The thermometer automatically turns off to reduce energy consumption if it is not used for 15 seconds in HOLD mode and 10 seconds in other modes. The temperature measurement time is a maximum of 250 milliseconds in 95% of cases. The device is powered by two 1.5V AAA batteries. This non-contact infrared thermometer can be used in various fields, such as the food industry, machine maintenance, metalworking, cold storage, and other industries. Specifications: Infrared thermometer for non-contact measurement of surface temperatures Temperature range -50°C to +500°C, switchable to Fahrenheit Delimitation of the measured surface by a circular laser indication The distance-to-spot ratio of this instrument is 12:1 25 x 26mm EBTN color display Indication of threshold values by means of a buzzer and on the display Batteries: 2x AAA battery (included) Technical parameters: Temperature range: -50°C to +500°C (-58°F to 932°F) Measurement accuracy in the range -50°C to 0°C: ± (2°C + 0.1°C/°C) Measurement accuracy between 0°C and 500°C: ± 2°C or ± 2% (whichever is greater) Measurement accuracy between -58°F and 32°F: ± (4.0°F + 0.1°F/°F) Measurement accuracy between 32°F and 932°F: ± 4.0°F or ± 2% (whichever is greater) Resolution: 0.1°C / 0.1°F Spectral response: 8µm to 14µm Response time in 95% of cases: =250 ms Distance-to-spot ratio: 12:1 Delimitation of the circular laser measurement area: yes Class 2 ring laser: wavelength 630 nm to 670 nm, output power =1 mW Display: high-contrast EBTN color with backlight of 25 x 26 mm Emissivity setting of the measured surface: in the range of 0.1 to 1.0; default 0.95 Measurement hold: yes Operates on two 1.5 V AAA batteries: ZnMn or alkaline Battery life: continuous temperature measurement =6 hours (laser on + display backlight) Automatic shutdown for inactivity: yes Low battery indication: yes Drop test from a height: 1 m Temperature alarm mode: HI / LO (high / low alarm with acoustic indication) MAX / MIN / AVG / DIF hold: yes Operating temperature: 0°C to 50°C (32°F to 122°F) Operating humidity: <90% RH (non-condensing) Storage temperature: -20°C to 60°C (-4°F to 140°F) Product color: red and gray Net product weight: 161.5 grams Product size: 146 x 94.5 x 46mm