Measurement Range -10 ~ 300°C Resolution 1°C Accuracy ≤100°C (±5°C)   >100°C (±5%) Measuring Distance 5 ~ 35m Distance to Spot Ratio 500 : 1 Minimum Detectable Target ø35mm Emissivity 0.40 ~ 1.00 Consumption ≤40mA Power 2x9V battery or lithium battery Environment Temperature 0 ~ 50°C Size 500x175x70mm Weight 1700g Standard accessories Batteries, screw driver, carrying case, hard case, instruction manual, warranty card, certificate of product conformance