Hygrometers
Hygrometers
Instruments that measure moisture in ambient air; types include indicator papers and dial-styles; electronic versions may be analog or digital; may be traceable to NIST. Because humidity is affected by temperature, most hygrometers include thermometers to correct readings.
Hygrometers, or humidity meters, are devices for measuring the level of water vapor (also known as relative humidity, RH) in the atmosphere or in other gases.
How Are Hygrometers Used?
• Monitoring moisture levels in laboratory incubators, growth chambers, greenhouses, and controlled climate cabinets
• Measuring humidity in confined spaces, rooms, or buildings where moisture levels are critical to the activity being performed or to the objects or materials being stored
• Measuring humidity in domestic or residential settings
• Meteorological and climate monitoring
Classical, mechanical hygrometers, which are less widely used today, include wet/dry bulb hygrometers or psychrometers and hair tension hygrometers, which rely upon a single (hygroscopic) hair or fiber.
Most hygrometers available on the market today are electronic digital instruments, which measure humidity using capacitive or resistive sensors. These digital devices offer clear displays with reliable and consistent performance, and are typically compact, hand-held, or benchtop units with a minimal footprint. They may also be available with temperature, timer and alarm functionality, and with externally corded probes and wireless radio-signal connectivity for remote monitoring and data logging. Many operate over a wide temperature range of -5° to +50°C, with a typical measurement range of 0 to 95% relative humidity (RH).
Fisherbrand™ Traceable™ Thermometer/Clock/Humidity Monitor
Measures ambient temperature, relative humidity and tells time.
TFA Dostmann™ Digital Indoor Thermo-Hygrometer
An excellent choice for the monitoring of indoor temperature and humidity.
TFA Dostmann Digital Thermo-Hygrometer
This modern ultra-flat glossy digital thermo-hygrometer is an ideal instrument for monitoring the indoor climate. You can easily keep an eye on temperature and humidity. If a smiley icon appears, the values are ideal. The highest and lowest values are stored and displayed at the push of a button.
Fisherbrand™ Traceable™ Relative Humidity/Temperature Meters
Monitor air conditions in environmental chambers, chemical storage areas, cleanrooms, incubators and stockrooms
Fisherbrand™ Traceable™ Thermohygrometer with Clock
Monitor temperature, humidity, and time simultaneously, at a glance.
Fisherbrand™ Traceable™ Precision Lollipop™ Water-Resistant Thermometers
This digital and water-resistant thermometer provides results in two seconds
Fisherbrand™ Digital Hygrometer with Thermometer
Use this hydrometer for reliable service even in harshest environments. Digital Hygrometer with Thermometer simultaneously displays both temperature and relative humidity.
Fisherbrand™ Traceable™ Alarm RH/Temperature Monitor
Monitors round-the-clock for critical experimental requirements.
Fisherbrand™ Traceable™ Precision Monitoring Thermohygrometer
This digital temperature and humidity meter continuously monitors and displays readings graphically and numerically.
Fisherbrand™ Traceable™ Humidity Meter
Retains highest and lowest readings recorded over selected period
Fisherbrand™ Traceable™ Humidity/Temperature Meter/Recorder
Ideal for monitoring conditions in chambers, cleanrooms, food processing facilities, scientific laboratories, and other humidity-sensitive areas
Cole-Parmer™ Clear Rain Gauge
Measure accumulated precipitation with these clear buterate cylindrical rain gauges. Easy to read rain level in English or Metric units
Fisherbrand™ Traceable™ Clock/Thermometer/Humidity Meter
Battery-operated, wall-mounted unit has 9.75 in. dial
Fisherbrand™ Traceable™ Printing Hygrometer/Thermometer
Provides permanent hard copy results