1.Measurement Range is very large 2.Laser Powe is Less than 1 mW 3.2-temperature, 4 digits diaplay 1. specification Basic Function VA6530VA6532VA6533Measurement Range-20°C ~ 50°C: ±2.5°C50°C ~ 537°C ± (reading×1%+1°C)( -4°F ~ 999°F)√√√Emissivity0.95√adjustable√Resolution0.2°C√√√Distance to Spot Ratio12:01√√√Spectral Response8-14μm√√√LCD Display2-temperature, 4 digits√√√Alarming temperature ...