Infrared Thermometer 12:1 Measured Distance Ratio LCD Display Heat Temperature Temp Meter Gauge Gun ‑50℃‑550℃ Item Type: Thermometer Model: DT8550LT Material: ABS Battery: 1.5V AAA x 2 (Shipping Without Battery) Use: Widely Used In Chemical and Chemical Equipment, Machinery Repair and Maintenance, Substations, Industrial Equipment, Food Processing, Home Life Power and Other Fields. Basic Parameters: Measurement Range: -50℃ -550℃ Temperature Measurement Accuracy: ± 2% or 2℃ Measurement Distance Ratio: 12:1 Emissivity: 0.1 to 1.0 Response Time and Response Value Length: 500ms and (8-14)um Repeatability: ±1% or ±1℃ Resolution: 0.1℃ or 0.1°F Storage Ambient Temperature: -20-50℃(-4-122℉) Operating Temperature: 0-50℃(32-122℉) Measurement Maximum: Yes Fahrenheit or Celsius Conversion: Yes Laser Target Display Selection Function: Yes Backlight Display Selection Function: Yes Data Hold Function: Yes Auto Power Off Function: Yes Low Battery Indicator Function: Yes