Feature:1. SET ALARM THRESHOLD: Thermometer can be set to an alarm threshold value. When the measurement is higher or lower than the set threshold value, there will be a beeping alarm prompt sound, as well as alarm prompt light flashing.2. ACCURATE MEASUREMENT: Infrared thermometer is designed for high accuracy and accurate measurement over a temperature range of 50 to 880C ( 58 to 1616F) with an accuracy of 0.5C or 1 percent of the reading.3. FOUR DIGIT DISPLAY: Digital infrared thermometer provides accurate readings on a variety of surfaces and conditions. Supports four digit display up to 8888. Compact and portable for easier use.4. OPTICAL INDICATORS: Infrared thermometer optical indicators, as the distance to the measured target (D) increases, the area of the light spot measured by the thermometer area becomes larger.5. EMISSIVITY: In order to compensate for the measurement error caused by different emissivity, it is necessary to adjust the pyrometer emissivity value according to the material of the object to be measured.Specification:Item Type: Infrared ThermometerMaterial: ABSColor: Black, RedTemperature Measurement Range: - 50 To 880C (- 58 To 1616F)Accuracy: 0.5C Or 1 percent Of ReadingResponse Time: andlt 500ms (95 percent Of Reading)Spectral Response: 8m To 14mOptical Resolution: 12:1 (Calculated At 90 percent Of Energy)Emissivity: 0.1 To 1.00 Adjustable In 0.01 Steps (Default 0.95)Display Resolution: 0.1C (0.1F)Repeatability: and1.0 percent Of Reading Or and1.0C (and2.0F), Whichever Is GreaterLaser: Wavelength 650nm, Output Power Less Than 1mW, Class 2 LaserDisplay: Four Digit Display, Maximum Display 8888Display Size: Approx. 29x27mm or 1.14x1.06inPower Supply: 2 x 1.5V AAA Batteries (Without Batteries)Operating Temperature: 0 C To 50 C (32 F To 122 F )Operating Humidity: 80 percent Relative Humidity (Non Condensing)Storage Temperature: -20C To 60C (-4F To 140F )Drop Test: Approx. 1m or 3.3ft.Package List:1 xInfrared Thermometer1 x Lanyard1 x Cloth Bag1 x Instruction BookNote:1. Please allow some error due to manual measurement.2. Infrared thermometer optical indicators, refers to the distance D of the thermometer to the measured target and the ratio of the measured target effective area S (D:S)