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Extech RTH50 USB Pressure, Humidity and Temperature Data Logger

USB Pressure Data Logger

Extech Logger Measuring Temperature, Humidity and Pressure with a Direct USB Connection

Part Number: RHT50

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  • Internal Sensors Measure and Record Ambient Air Pressure, Humidity and Temperature
  • User Selectable Atmospheric Pressure Units Available in psi, hPa, kPa and bar via Software
  • Stores up to 10,000 Total Pressure, Humidity and Temperature Readings
  • User-Selectable Sampling Rate of 1 Minute to 18 Hours (via Software)
  • Red, Green and Yellow LED Indicators Show Logging and Battery Status

Includes (1) 1/2 AA Lithium Battery, Mounting Bracket and PC Software

Availability: In stock


All Calibration Orders Have a 5 to 7 Business Day Lead Time
1 Year Calibration Due Date Unless Otherwise Specified

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Extech RHT50 USB Pressure Data Logger Specifications

Atmospheric Pressure Range: 13.7psi to 15.2 psi (0.9 bar to 1.0 bar)
Accuracy: ±0.25% FSO @ 25°C
Resolution: 0.1 psi (0.1 bar)
Repeatability: ±0.25% Max + ±0.3% FSO
Linearity/Hysteresis: ±0.24% FSO
Temperature Coefficient: ±0.1% FSO
Humidity Range: 0 to 100% RH
Resolution: 0.1% RH
Accuracy: ±3.5% RH
Temperature Range: -40°C to 70°C (-40°F to 158°F)
Resolution: 0.1°C/°F
Accuracy (1.0°C/1.8°F): -10°C to 40°C (14°F to 104°F)
Accuracy (2.0°C/3.6°F): -40°C to -10°C and 40°C to 70°C (-40°F to 14°F and 104°F to 158°F)
Sampling Rate 1 Minute to 18 Hours (User Selectable)
Data Storage Capacity 10,000 Total Pressure, Humidity and Temperature Readings
Power Source (1) 3.6 Volt 1/2 AA Lithium Battery (User Replaceable)
Battery Life Approx. 1 Year
(Dependant on Environment, Alarm LEDs and Sampling Rate)
Operating Environment Temperature: -35°C to 80°C (-31°F to 176°F)
Communications Interface Direct USB Connect to PC
Software Compatibility Windows XP, Vista and Windows 7 (32-Bit and 64-Bit)
Standards Compliance CE
Weight 6.0 oz. (172 grams)
Dimensions 130mm x 30mm x 25mm (5.1" x 1.1" x 0.98")

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  • Answer:

    While Extech only states compatibility with XP and Windows 7 we have tested it here on our computers running Windows 10 and it works fine.

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