Check the listing for details. Handheld Infrared Laser Thermometer Temperature Meter LCD Backlight 550℃ DS 12:1. Condition: New. Listed at 17.79 USD. Product description Function: Brand name: HoldpeakColor: White+BlueMaterial: ABS HP-981C Digital infrared temperature meter -50-550 ° C, cone ratio 12: 1 with memoryIn addition to the maximum, minimum and average value function, the IR temperature measuring device also has an alarm function with upper and lower alarm value settings. Features: Display: LCD with backlightData holdMaximum value Minimum value Average valueAlarm function: upper and lower temperature value adjustableMeasured value memory: the last 12 measured values ​​are stored temporarilyAutomatic shutdown after 10sUnits: ° C and ° F Specification: Measuring range: -50-550 ° C Resolution: 0.1 ° C Accuracy: ± 2% or 2 ° C in the range of 0-100 ° C and ± 3% or 3 ° C below or above Repeatability: ± 1 ° C or ± 1% DS ratio: 8: 1 Spectral sensitivity: 8-14μm Emission factor: 0.95 fixed Response time: 0.5s Power supply: 9V battery Dimensions (WxHxL): 41x165x72mm Operating environment: 0-40 ° C, relative humidity