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The super-versatile #RHMG650 is ideal for water damage restoration contractors, facilities maintenance professionals and HVAC system installers/technicians.

  • Measures 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 the pinless sensor, 6) absolute moisture level using t
  • Stores/recalls 20 pairs of temperature and RH readings
  • Adjustable high and low alarms for RH, relative moisture level and absolute moisture level
  • Backlit LCD with 3-digit primary readout + 4-digit secondary readout
  • 33% (HR33) and 75% (HR75) reference salts are available to perform a diagnostic check of the RH sensor. The sensor itself is not calibratable outside of a lab
  • Min/max memory + data hold
  • Auto power off

Additional Information

ManufacturerGeneral Tools
IncludesExternal pin-type moisture probe Battery Soft pouch 1-year limited warranty
Dimensions7.3 x 2.8 x 1.4 in. (185 72 36mm)
Auto power offAfter 30 minutes of front-panel inactivity
Power source"9V" battery (included)
Operating temperature32° to 110°F (0° to 43°C)
Weight (without battery)6.2 oz. (175g)
Ambient temperature measurement range/accuracy-20° to 167°F (-29° to 75°C)/3.6°F (2°C)
RH measurement range/accuracy0 to 100%/2.5% from 11 to 90%RH; 3%RH elsewhere
Absolute humidity range0.5 to 240mg/m3
GPP range0 to 999 GPP (0 to 160g/kg)
Relative/absolute moisture level range0 to 99.9%
Pinless moisture measurement depth0.75 in. (19mm)
Remote moisture probe measurement accuracy/resolution3%/0.1%
Remote probe pin length0.3 in. (8mm)
Dew point range-76° to 140°F (-60° to 60°C)
Atmospheric pressure range30 to 120 kPA
Vapor pressure range0 to 20 kPA
Sampling rate2X/sec
Memory capacity20 pairs of readings

General Tools

General Tools RHMG650 9-In-1 Temperature-Humidity Meter With Pin/Pinless Moisture Meter

General Tools RHMG650 9-In-1 Temperature-Humidity Meter With Pin/Pinless Moisture Meter

GTIN : 681035000000

MPN : RHMG650

SKU : kpt028-RHMG650

In Stock - 1 (Available by Tue, Dec 10 - Sat, Dec 14)

$234.33
$234.33
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