RS PRO Psychrometer, Maximum Measurement 100 (Relative Humidity)%

  • RS庫存編號 193-8695
  • 製造商 RS PRO
COO (Country of Origin): CN

RS PRO RS-3322 Psychrometer

Introducing the RS PRO Psychrometer, a highly reliable device used to quickly and effectively measure the relative humidity in the atmosphere. The RS PRO digital psychrometer features two thermometers, one that is placed into liquid (wet bulb) and the other is exposed to the immediate atmosphere (dry bulb) in order to calculate the level of relative humidity in the atmosphere. The backlit LCD display allows clear and accurate readings and the unit can be used for a variety of applications like measuring ambient air temperatures in laboratories, especially during experiments, assessing indoor air quality (IAQ) or even just at home to maintain optimum comfort levels and good indoor air quality. It is an essential piece of equipment in the HVAC industry, used for inspection and maintenance purposes.

Features and Benefits:

  • This digital psychrometer from RS PRO features a large LCD display and heavy-duty design, allowing for easy reading of measurements and use in tough environments

  • It measures dew point, wet bulb and dry bulb temperature with user-selectable temperature units of °C and °F

  • This humidity instrument can calculate the target superheat and the target evaporator exit temperature

  • The unit offers an automatic power-off when idle and low battery display for effective battery management

  • It is an ideal device for diagnosing problems with air flow across the evaporator

  • The psychrometer is supplied with a Type K temperature probe, 9V battery and gift box


A psychrometer is a type of hygrometer and is an instrument that is used to measure the relative humidity in the atmosphere. It is an important tool to measure these two variables to ensure good air quality and optimum comfort levels. Proper humidity control can have a wide range of health benefits for people who suffer from skin problems, asthma, allergies, and much more. Some units are available as analogue units and others can contain a probe for more detailed investigation and measurement in harder to reach areas. Hygrometers are invaluable for facility maintenance and utility technicians, HVAC-service contractors, and specialists who assess indoor air quality (IAQ) and are widely used at home, in schools, the workplace, hotels, storerooms and many more. The most common applications these units are used for are:

  • Test and Measurement

  • Industrial Maintenance

  • Safety

  • Metering

  • Maintenance and Repair

  • Facility Maintenance

  • HVAC

  • Temperature

Is this psychrometer suitable for outdoor use?

Yes, this is suitable for indoor use as well as outdoor use

What is a psychrometer?

A psychrometer is a type of hygrometer device and is a piece of equipment that measures humidity by measuring the water vapour in the air, as well as ambient temperature. It is a dual-purpose unit that can be used to measure and monitor the air quality of the surrounding areas.

What is the difference between a psychrometer and a moisture meter?

A psychrometer is a device that measures moisture in the immediate air where it is situated, whereas a moisture meter is a device that measures the moisture content held within an object, like a wooden panel, cardboard, etc.

Is it possible to have this unit calibrated?

Yes, the unit can be calibrated to RSCAL or ISOCAL standards and can be found here:

193-8971 RSCAL
193-8969 ISOCAL


RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.

Attribute Value
Maximum Measurement 100 (Relative Humidity)%
Best Accuracy ±2 %
Display Type Backlit LCD
Power Source Battery
Battery Type 9V
Dimensions 63 x 28 x 187mm
Weight 176g
Minimum Operating Temperature -30°C
Height 187mm
Length 63mm
Maximum Operating Temperature +100°C
Width 28mm
當前暫無庫存,可於2020/12/3發貨,3 工作日送達。
單價 個
HK$ 839.47
Per unit
1 +