Psychrometer calculates wet bulb, dew point and T1-T2
Infrared thermometer measures surface temperatures from -40 to 932°F
Infrared thermometer features built-in laser pointer, 8:1 distance to target ratio and adjustable emissivity
Triple display with backlighting
Max/Min Hold, °C/°F selectable and battery level indicators
Retractable humidity sensor for protection during transport
Optional RS-232 cable allows user to download readings
Specifications: Function Range Resolution Accuracy Humidity: 0 to 100% RH 0.1%_RH ±3% RH Air Temp.: -4 to 122°F/ 0.1°F/°C ±1°F/0.6°C -20 to 50°C Dew Point: -98 to 122°F/ 0.1°F/°C ±3% -68 to 50°C Wet Bulb: -5 to 122°F/ 0.1°F/°C ±3% -21 to 50°C IR_Temp.: -40 to 932°F/ 0.1°F/°C < 110°C; ±2% or -40 to 500°C 1°F/1°C >= 110°C ±2°C/4°F Repeatability: ±1°C Emissivity: Adjustable, 0.3 to 1.0 D:S Ratio: 8:1 (Distance : Spot size) Power Supply: 4 x AAA batteries (included) Dimensions: 6.8 x 2.7 x 0.9”_(175 x 70 x 50mm) Weight: 4.9 oz (140g)