Internet #205078069

Model # RHMG650

0681035016084

Multi-Function Thermo-Hygrometer with Pin/Pinless Moisture Meter

  • Stores/recalls 20 pairs of readings
  • Backlit LCD with 3-digit primary readout
  • Min/max, data hold and 30-minute auto power off functions
$ 156 55

Frequently Bought Together

Frequently Bought Together

Product Overview

  • Stores/recalls 20 pairs of readings
  • Backlit LCD with 3-digit primary readout
  • Min/max, data hold and 30-minute auto power off functions
Since 1910, General Tools has grown to become a recognized industry leader for specialty hand tools and instruments. The General Tools Multi-Function Thermo-Hygrometer with Pin/Pinless Moisture Meter can measure 1) ambient temperature, 2) relative humidity (RH), 3) absolute humidity (in mg/L or g/m3), 4) GPP (mixing ratio in grains per pound or g/kg), 5) relative moisture level using pinless sensor, 6) absolute moisture level using included pin-type probe, 7) dew point, 8) atmospheric pressure and 9) vapor pressure. It’s ideal for water damage restoration contractors, facility maintenance professionals and HVAC system installers/technicians.
  • Stores/recalls 20 pairs of readings
  • Settable high and low alarms for RH, relative moisture level and absolute moisture level
  • Backlit LCD with 3-digit primary readout plus 4-digit secondary readout
  • Field calibratable humidity measurement
  • Min/max, data hold and 30-minute auto power off functions
  • Ambient temperature measurement range/accuracy: -20 to 167˚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 240mg/m3
  • GPP range: 0 to 999/GPP (0 to 160g/kg)
  • Relative/absolute moisture level range: 0 to 99.9%
  • External moisture probe measurement accuracy/resolution: ±3%/0.1%
  • External probe pin length: 3/8 in. (10 mm)
  • Dew point range: -76 to 140˚F
  • Atmospheric pressure range: 30 to 120 KPA
  • Includes meter, external moisture probe and soft carry case
  • California residents see Prop 65 WARNINGS

Product Overview

  • Stores/recalls 20 pairs of readings
  • Backlit LCD with 3-digit primary readout
  • Min/max, data hold and 30-minute auto power off functions
Model #: RHMG650
Internet #: 205078069

Since 1910, General Tools has grown to become a recognized industry leader for specialty hand tools and instruments. The General Tools Multi-Function Thermo-Hygrometer with Pin/Pinless Moisture Meter can measure 1) ambient temperature, 2) relative humidity (RH), 3) absolute humidity (in mg/L or g/m3), 4) GPP (mixing ratio in grains per pound or g/kg), 5) relative moisture level using pinless sensor, 6) absolute moisture level using included pin-type probe, 7) dew point, 8) atmospheric pressure and 9) vapor pressure. It’s ideal for water damage restoration contractors, facility maintenance professionals and HVAC system installers/technicians.

  • Stores/recalls 20 pairs of readings
  • Settable high and low alarms for RH, relative moisture level and absolute moisture level
  • Backlit LCD with 3-digit primary readout plus 4-digit secondary readout
  • Field calibratable humidity measurement
  • Min/max, data hold and 30-minute auto power off functions
  • Ambient temperature measurement range/accuracy: -20 to 167˚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 240mg/m3
  • GPP range: 0 to 999/GPP (0 to 160g/kg)
  • Relative/absolute moisture level range: 0 to 99.9%
  • External moisture probe measurement accuracy/resolution: ±3%/0.1%
  • External probe pin length: 3/8 in. (10 mm)
  • Dew point range: -76 to 140˚F
  • Atmospheric pressure range: 30 to 120 KPA
  • Includes meter, external moisture probe and soft carry case
  • California residents see Prop 65 WARNINGS

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
1.4
Product Height (in.)
7.3
Product Width (in.)
2.8

Details

Battery Power Type
Alkaline
Battery Size
9-volt
Control Type
Manual/Analog
Display Type
Digital
Electrical Tools Features
Abrasion-Proof Display Lens,Automatic Calibration,Automatic Temperature Compensation,Backlit,Data Hold,Data Log/Record,Interchangeable Pins/Probes
External Electrode
Included
Maximum Moisture Reading (%)
99
Maximum Sense Depth (in.)
.75
Measureable Materials
Various
Measures/Detects
Humidity
Minimum moisture reading (%)
0
Number of Batteries Required
1
Product Weight (lb.)
.39lb
Returnable
180-Day
Test Meter Type
Moisture Meter
Tools Product Type
Test Meter

Warranty / Certifications

Manufacturer Warranty
1 Year

Specifications

Dimensions

Product Depth (in.)
1.4
Product Height (in.)
7.3
Product Width (in.)
2.8

Details

Battery Power Type
Alkaline
Battery Size
9-volt
Control Type
Manual/Analog
Display Type
Digital
Electrical Tools Features
Abrasion-Proof Display Lens,Automatic Calibration,Automatic Temperature Compensation,Backlit,Data Hold,Data Log/Record,Interchangeable Pins/Probes
External Electrode
Included
Maximum Moisture Reading (%)
99
Maximum Sense Depth (in.)
.75
Measureable Materials
Various
Measures/Detects
Humidity
Minimum moisture reading (%)
0
Number of Batteries Required
1
Product Weight (lb.)
.39lb
Returnable
180-Day
Test Meter Type
Moisture Meter
Tools Product Type
Test Meter

Warranty / Certifications

Manufacturer Warranty
1 Year

Questions & Answers

Can this meter detect water through metal

Asked by: Anthony
No it wont detect moisture through metal
Answered by: General Tools
Date published: 2020-03-05

Will this tell me moisture in drywall? Im looking for mold

Asked by: Bill
This meter measures in relative mode only so you need a reference. If you need absolute reading please consider our MMD4E https://www.homedepot.com/p/General-Tools-Pin-Type-Digital-Moisture-Meter-with-LCD-Display-MMD4E/100651808.
Answered by: Communityanswer
Date published: 2019-09-25

Can this accurately measure moisture in drywall and plastered ceiling? l

Can this accurately measure moisture in drywall and plastered ceiling? l
Asked by: ls
Hi this meter measures in relative mode only so you need a reference. If you need absolute reading please consider our MMD4E https://www.homedepot.com/p/General-Tools-Pin-Type-Digital-Moisture-Meter-with-LCD-Display-MMD4E/100651808. Hope this helps.
Answered by: General Tools
Date published: 2019-01-16

Is good to use on wood floors

Asked by: mag
YES IT WILL
Answered by: General Tools
Date published: 2017-04-20
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