Single-laser targeting Low battery indication Power-off memory ?/? selections White backlight Max/Min/Avg modes Lock measurement Data hold; auto power off Specifications Product size 120mm x 53mm x 28mm Distance to spot ratio 6:01 Display 37.4mm x 36.4mm Accuracy ?0?: "2.0? or "2%; <0?: "(2.0?+0.1?/?) Laser Power < 1mW Storage temperature -20?~60? (-4?~140?) Operating temperature 0?~50? (32?~104?) Response time <250ms Emissivity 0.95 Spectral response 8um~14um Temperature range -35 to 300"C