rh300:hygro-thermometer psychrometer

humidity, wet bulb, dew point, air temperature plus external probe temperature measurements

• simultaneous display of %rh, temperature and dew point or wet bulb or probe temperature
• wet bulb measurements without slinging
• calculates t1-t2 differential (air temperature-external probe temperature) using optional probe
• unique sensor cap design twists to closed position for protection during storage
• switchable °f/°c temperature units with 0.1° resolution