Simultaneous display with %RH, temperature and dew point or wet bulb or external probe temperature*
Calculates T1-T2 (Air temperature - External probe temperature)*
Triple display with backlighting
Max/Min readings
Sensor cap closes to protect probe during storage
Includes batteries * Requires 87P6 temperature probe
Specifications: Humidity Range: 0 to 100% RH Accuracy: ± 3%RH at 25°C, ± 4%RH other Dew Point Range: -90 to 122°F (-68 to 50°C) Wet Bulb Range: 5 to 122°F (-21 to 50°C) Internal Temperature Range: -4 to 122°F (-20 to 50°C) Accuracy: ±1°F(0.6°C) External Temperature Range: -4 to 158°F (-20 to 70°C) Accuracy: ±1°F(0.6°C)