About this item High AccuracyThe infrared thermometer has object distance of 12:1 and can measure targets at a longer distance. High quality sensors can be used to complete measurements in 0.5 seconds. Measurement accuracy up to 1.5C/1.5 %, More accurate measurement target than most digital thermometers .which is suitable for most daily life. Widely Used: Temp measurement range -50 ~ 400 C (-58 ~ 752 F), laser thermometer can be used for hot Water and Oil in life, Kitchen CookingFood MeatOvenAutomobile repair Engine, Tlectrical equipment and more Unique FeaturesIR thermometer mode switch button to switch between MAX/MIN/AT/EMS/CAL Mode,More modes but simpler operation, and can make measurements more accurate than most other infrared thermometer Operation DisplayLaser thermometer adopts large LCD display with high stability and backlit display, which can read values in the dark; no need for power switch, just press the measurement button to startAnd 20s auto-off helps to save power What You Get1 GM321 Infrared Thermometer Not for Human Body, 1 English manual. Welcome Guide Product description: Digital Infrared Thermometer Introduction This Thermometer is used for measuring the temperature of the object's surface, which is applicable for various hot, hazardous or hard toreach objects without contact safely and quickly. Special Features Adjustable Emissivity , Maximum temperature , Minimum temperature , Ambient temperature , Self-help calibration , LCD Backlit display , C/F switching , Auto-off Specification: Temperature range-50~400 (-58~752) Accuracy0~400(32~752) :1.5(2.7) or1.5% -50~0(-58~32):3 (5) Repeatability1% of reading or 1 Response time500 mSec, 95% response Spectral response5~14 um Emissivity 0.10~1.00optional (0.95 Preset) Distance to Spot size12:1 Storage Temperature-20 ~ 60 (-4~140) Power3V (1.5V AAA battery * 2without) Product List: 1 GM321 Infrared Thermometer Not for Human Body 1 English manual GM321 Infrared Thermometer maximum and minimum values and environmental mode 1.Maximum temperature measurement: The user quickly locks the maximum temperature when measuring high temperature objects: 2.Minimum temperature measurement: The user quickly locks the lowest temperature when measuring low temperature objects 3.Ambient temperature measurement: Automatically display the current ambient temperature in AT mode, same as the ambient thermometer Mode switch button: Press MODE button to switch mode, which is MAXMINATEMSCALmeasurement interface GM321 laser infrared thermometer Self-calibration function Press the mode button continuously to switch to CAL mode. Use the C/F switch button and the Backligh Switch button to adjust between -5C and +5C. After setting, press the Mode button to save and return to the measurement mode.