Optical Resolution: D:S=12:1; Accuracy: -500 (-5832): +/- 4/9; Above 0(32): +/- 2% +/- 2; Emissivity fixed at: 0.95; Response Time: 1s; Alarm: Alarm; Resolution: 0.1; Spectral Response: 814um; Temp. Conditions Operating: 0'C to 50'C / 32'F to 122'F Storage: -20'C to 60'C / -4'F to 140'F; Humidity Conditions: Operating: 10~95% RH; Storage: <80% RH; Power Supply: one 9V battery; Dimensions (L x W x H): 134 x 88.5 x 36mm; Weight: 105g; Built-in laser pointer; Overrange indication; User Selectable Units; Backlit LCD display; Data Hold; Auto power off; LCD size: 1.2 inch; LCD color: white; Battery: 330mAh; Work away: 22 hours; Dimensions (H x W x D): 134 x 89 x 36mm; Weight: 185g; Packing Size (H x W x D): 200 x 135 x 60mm; Accessories: User's manual 9V battery blister card and clamshell.