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RH650-Series
Handheld Multi-Functional Thermo-Hygrometer
Models In Stock
- Measures: Temperature, Humidity (RH) and Moisture (GPP, DP, AP and VP)
- Stores/Recalls 20 Sets of Readings
- Programmable High and Low Alarms for Relative Humidity, Relative Moisture Level and Absolute Moisture Level
- Backlit LCD with 3-Digit Primary Readout and 4-Digit Secondary Readout
RH650-Series
From
$
447.25
Models In Stock

Product Overview
- Absolute Humidity Range 0.5 to 240 mg/m^3
- Atmospheric Pressure Range 30 to 120 kPA
- Auto Power Off 30 minutes of inactivity
- Battery life up to 8 wks
- External Probe Pin Length 10 mm
- GPP Range GPP Range : 0 to 999 ; GPP: (0 to 160g/kg)
- Height 32 mm
- Length 185 mm
- Moisture Measurement ± 3%
- Operating Temperature, Max 75 °C
- Operating Temperature, Min -29 °C
- Pinless Moisture Measurement Depth 19 mm
- Process Temperature, Max 60 °C
- Process Temperature, Min -60 °C
- Relative/Absolute Moisture Level 0 to 99.9%
- Relative Humidity Accuracy ± 2.5% RH
- Relative Humidity Accuracy Note ± 2.5% from 11 to 90% RH ± 3% RH elsewhere
- Response Time 60 sec
- Sampling Rate 2 Hz (2 updates/second)
- Storage Capacity 20 points
- Supply Voltage 9 Vdc
- Vapour Pressure Range 0 to 20.0 kPA
- Weight 175 g
- Weight Note 175 g (6.2 oz.) without battery
- Width 72 mm
The OMEGA RH650 precision invasive/non-invasive moisture meter with temperature, humidity (RH) and moisture readings is ideal for water damage restoration contractors, facility maintenance professionals and hvac system installers/technicians.
The RH650 reads a multitude of important humidity and moisture values including ambient temperature (°C or °F), relative humidity (RH), absolute humidity (in mg/L org/m3), GPP (mixing ratio in grains per pound or g/kg), relative moisture level using pinless sensor, absolute moisture level using included pin-type probe, dew point, atmospheric pressure and vapor pressure.
SPECIFICATIONS
Ambient Temperature Measurement Range/Accuracy: -29 to 75°C (-20 to 167°F)/2°C (± 3.6°F)
RH Measurement Range: 0 to 100%
RH Measurement Accuracy: ± 2.5% from 11 to 90% RH ± 3% RH elsewhere Absolute Humidity Range: 0.5 to 240 mg/m3
GPP Range: 0 to 999
GPP: (0 to 160g/kg)
Relative/Absolute Moisture Level Range: 0 to 99.9%
Pinless Moisture Measurement Depth: 19 mm (0.75")
External Moisture Probe Measurement Accuracy/Resolution: ± 3%/0.1%
External Probe Pin Length: 10 mm (3/8")
Dew Point Range: -60 to 60°C (76 to 140°F)
Atmospheric Pressure Range: 30 to 120 kPA
Vapor Pressure Range: 0 to 20.0 kPA
Sampling Rate: 2X/sec
Memory Capacity: 20 points
Auto Power-Off Trigger: 30 minutes of inactivity
Battery Life: 6 to 8 weeks (4 hrs/day use)
Operating Temperature: 0 to 43°C (32 to 110°F)
Dimensions: 185 L x 72 W x 36 mm D (7.3 x 2.8 x 1.4")
Weight: 175 g (6.2 oz.) without battery
Power Source: “9V” battery (included)
The RH650 reads a multitude of important humidity and moisture values including ambient temperature (°C or °F), relative humidity (RH), absolute humidity (in mg/L org/m3), GPP (mixing ratio in grains per pound or g/kg), relative moisture level using pinless sensor, absolute moisture level using included pin-type probe, dew point, atmospheric pressure and vapor pressure.
SPECIFICATIONS
Ambient Temperature Measurement Range/Accuracy: -29 to 75°C (-20 to 167°F)/2°C (± 3.6°F)
RH Measurement Range: 0 to 100%
RH Measurement Accuracy: ± 2.5% from 11 to 90% RH ± 3% RH elsewhere Absolute Humidity Range: 0.5 to 240 mg/m3
GPP Range: 0 to 999
GPP: (0 to 160g/kg)
Relative/Absolute Moisture Level Range: 0 to 99.9%
Pinless Moisture Measurement Depth: 19 mm (0.75")
External Moisture Probe Measurement Accuracy/Resolution: ± 3%/0.1%
External Probe Pin Length: 10 mm (3/8")
Dew Point Range: -60 to 60°C (76 to 140°F)
Atmospheric Pressure Range: 30 to 120 kPA
Vapor Pressure Range: 0 to 20.0 kPA
Sampling Rate: 2X/sec
Memory Capacity: 20 points
Auto Power-Off Trigger: 30 minutes of inactivity
Battery Life: 6 to 8 weeks (4 hrs/day use)
Operating Temperature: 0 to 43°C (32 to 110°F)
Dimensions: 185 L x 72 W x 36 mm D (7.3 x 2.8 x 1.4")
Weight: 175 g (6.2 oz.) without battery
Power Source: “9V” battery (included)
PDFs & Manuals
Show Ratings & Reviews
Rated 4 out of
5
by
BigPun from
So far so good.
Buttons are a little tough to work though.................
Date published: 2016-04-28
Rated 5 out of
5
by
SpaceFence from
Just What I Needed
Great device. Very Responsive. I was able to take 45 temp, humidity and DEW readings in 30 min. Replication was very accurate.
Date published: 2018-06-30