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RH80-Series
Thermo-Hygrometers for Temperature, Humidity, and Dew Point
- Compact Fits in Pocket
- Cover Protects Sensor and Serves as a Clip
- Three Models: RH81 Measures RH/Temperature RH82 Measures RH/Temperature/ Dewpoint RH83 Measures RH/Temperature/ Dewpoint/Wet Bulb
- °F/°C Switchable, Data Hold, Min/Max Data Storage, Auto Power Off (20 min)
RH80-Series
From
$
133.55
Product Overview
- Applications Air and HVAC, Environmental and Weather, Laboratories and Scientific, Packaging and Printing
- Battery life 500 hr
- Display Type LCD
- Height 17 cm
- Humidity Sensor Electronic capacitance polymer film
- Length 1.65 cm
- Measuring Temperature Range, Max 50 °C
- Relative Humidity Resolution 0.001
- Response Time 60 sec
- Series ID RH80-Series
- Temperature Resolution 0.1 °C
- Temperature Sensor Type Thermistor
- Width 4.9 cm
Supported Applications
The Omega RH80 series are compact, pocket-sized thermo-hygrometers for measuring relative humidity and temperature, with higher models adding dew point and wet bulb temperature. An electronic capacitance polymer film sensor measures humidity and a thermistor measures temperature, with results shown on an LCD, making the instruments convenient handheld tools for spot checks.
Their portability and multi-parameter readout suit laboratories, printing and paper processing, and general facility monitoring wherever a quick, battery-powered humidity and temperature reading is needed. All models are °F/°C switchable and include data hold, min/max data storage, and auto power off.
Operating Conditions & Performance
The RH81 measures 5 to 95% RH over -10 to 50 °C (14 to 122 °F), while the RH83 and RH92 measure 0 to 100% RH over -20 to 50 °C (-4 to 122 °F). Humidity resolution is 0.1% RH and temperature resolution is 0.1 °C (0.1 °F).
Temperature accuracy is ±1 °C (±1.8 °F) on the RH81 and RH83, and a tighter ±0.6 °C (±1.0 °F) on the RH92. Humidity accuracy is ±4% at 25 °C from 10 to 90% for the RH81, ±3% at 25 °C from 10 to 90% for the RH83, and ±3% across 0-100% non-condensing for the RH92.
- Response time: 60 sec, and 80 sec for the RH81.
- Power: two AAA alkaline batteries, with a battery life of 500 hrs typical.
- Sensors: electronic capacitance polymer film humidity sensor and a thermistor temperature sensor with an LCD display.
- Dimensions: 6.7" x 1.9" x 0.65".
The RH92 can be recalibrated with available salt solutions, and its replaceable external temperature probe, the P8706, extends the temperature range to -20 to 70 °C (-4 to 158 °F).
Configuration Options
The three models share the same pocket form factor, capacitance humidity sensor, thermistor temperature sensor, and LCD readout, and differ mainly in the number of measured parameters, the humidity range, and calibration capability.
Measured Parameters
The RH81 measures relative humidity and temperature, the RH83 adds dew point and wet bulb temperature, and the RH92 provides the same dew point and wet bulb measurements as the RH83.
Range and Accuracy
The RH81 covers 5 to 95% RH, while the RH83 and RH92 cover the wider 0 to 100% RH span; the RH92 also offers the tightest temperature accuracy at ±0.6 °C (±1.0 °F).
Calibration and Probe
The RH81 and RH83 use a protective cover that also serves as a clip, while the RH92 adds a twist-close cap, is recalibratable, and accepts the replaceable external P8706 probe.
Key Product Differences
This series consists of three pocket thermo-hygrometers, differentiated by measurement capability. Each ships complete with two AAA batteries and an operator's manual.
- RH81 — relative humidity and temperature, 5 to 95% RH.
- RH83 — relative humidity, temperature, dew point, and wet bulb, 0 to 100% RH.
- RH92 — the same measurements as the RH83 with recalibration and a replaceable external probe, 0 to 100% RH.
Accessories include the P8706 replaceable external temperature probe for the RH92 and the CS338706 and CS758706 test salts for recalibration.
Show Ratings & Reviews
Rated 3 out of
5
by
OhGene from
Problems with calibration RH92 Psychrometer.
The RH92 Digital Psychrometer Is easy to use when measuring the environmental relative humidity and dew point. However, the psychrometer sensor is too small to fit snugly into the calibration salt containers so there is no accurate calibration possible for the psychrometer. I am waiting for Omega to correction the problem.
Date published: 2016-09-02
Rated 4 out of
5
by
Deadeye Duvall from
Great product
This is the second unit I have purchased. It is reasonably priced & works well.
Date published: 2016-10-20
Rated 4 out of
5
by
Tommy from
Nice piece of equipment
Although the gauge I purchased was a more low end product I expected a bit more, at least the "Omega" name to be identified on it, which it was not.
Date published: 2016-08-15
does this unit measure dew point down to -20 degrees F?
The RH83 will not measure Dewpoint to -20F.
Date published: 2021-04-06