Accuracy 0℃ and 65℃:±1℃.Below 0℃ :±1℃±0.1degree/degree.Above 65℃:±1.5% of reading Distance Spot Ratio 1:1 Emissivity 0.97 Resolution 0.1℃ Repeatability 1℃ Battery Type 1.5V AAA ×2 Dimension 56.5×20.5×95.0