Product HighlightsThe Fieldpiece ARH4 Digital Psychrometer Accessory Head measures both relative humidity and ambient air temperature. It calculates dew point and wet bulb. It's great for calculating target superheat as well as logging %RH, temp, WB or DP over time. The head converts %RH, ambient temperature, dew point temperature, and wet bulb temperature to a voltage at a rate of 1 %RH or degree to 1mVDC and your reading is displayed on your meter. The ARH4 snaps directly onto Fieldpiece stick meters, data logger, electronic handles and adapters.
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Weight 0.35 Pounds Length 6.00 Inches Width 5.00 Inches Height 1.50 Inches Country of Origin TWN Brand Fieldpiece® Auto Power Off Yes Digital Readout No Display No Accuracy ±1°F 32°F to 113°F ±2°F -4°F to 32°F, 113°F to 140°F ±0.5°C 0°C to 45°C ±1°C -20°C to 0°C, 45°C to 60°C Includes Case No Laser Pointer No Memory Review No Features Connect to Fieldpiece meters, data loggers and EHDL1 electronic handle - Temperature range: 32°F to 113°F - Displays RH% or °F (C°) of ambient air - Accuracy ±2.5% RH at 77°F and <90% RH - With optional deluxe test leads, use remotely or with other NSF Certified No Operating Humidity 0% to 100%RH Relative Humidity Accuracy ±2.5%@77°F(25°C), 10% to 90% RH ±5%@77°F(25°C), 90%RH Temperature Range -4°F to 140°F (-20°C to 60°C) Type Psychrometers Warranty Offered Yes
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