Width x Depth x Height: 51 x 166 x 200mm Distance to measurement range ratio (D vs S): 50 to 1 Measurement temperature range (℃): -30 to 1550 Temperature minimum display (℃): 0.1 Distance to measurement range ratio (D vs S): 50 to 1 Power supply (V): 9V alkaline dry battery (006p)x 1(用于监视器) 发射率:0.10至1.00