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).
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Fisherbrand™ Traceable™ Thermometer/Clock/Humidity Monitor
Measures ambient temperature, relative humidity and tells time.

Fisherbrand™ Traceable™ Clock/Thermometer/Humidity Meter
Battery-operated, wall-mounted unit has 9.75 in. dial

Fisherbrand™ Traceable™ Thermohygrometer with Clock
Monitor temperature, humidity, and time simultaneously, at a glance.
Fisherbrand™ Traceable™ Memory-Loc™ Data Logging Thermohygrometers with Calibration
The Traceable™ Memory-Loc™ Data Logging Thermohygrometer with Calibration allows you to safely secure collected information — data cannot be overwritten or modified.
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™ Alarm RH/Temperature Monitor
Monitors round-the-clock for critical experimental requirements.
Height (Metric) | 1.9 cm |
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Temperature Accuracy | ±0.5°C |
Width (English) | 4.25 in. |
Length (Metric) | 7 cm |
Length (English) | 2.75 in. |
Material | ABS Plastic |
Humidity Range | 5 to 95% |
For Use With (Application) | For routine measurements, round-the-clock monitoring, quality control and critical experiments, place sensor in hoods, cleanrooms, coolers, stockrooms, incubators, environmental chambers and chemical storage areas |
Width (Metric) | 10.8 cm |
Alarm Types | Audible |
Accuracy | Humidity Accuracy: ±3% midrange, ±5% otherwise |
Type | Remote Alarm Rh/Temperature Monitor |
Dimensions (L x W x H) | 2.75 x 4.25 x 0.75 in. (7 x 10.8 x 1.9 cm) |
Display Type | LCD w/ 0.5 in. digits |
Temperature Range (English) | 32°F to 140°F |
Weight (English) | 4 oz. |
Certifications/Compliance | ISO 17025, A2LA, NIST |
Temperature Range (Metric) | 0°C to 60°C |
Weight (Metric) | 0.113 kg |
Height (English) | 0.75 in. |
Temperature Resolution | 0.1°F |
Fisherbrand™ Traceable™ Precision Monitoring Thermohygrometer
This digital temperature and humidity meter continuously monitors and displays readings graphically and numerically.
Fisherbrand™ TraceableGO™ Bluetooth Datalogging Hygrometer
Fisherbrand TraceableGO™ Bluetooth Datalogging Hygrometer fills in the unknowns between destinations
Fisherbrand™ Traceable™ Humidity/Temperature Pen with Memory
Ideal for monitoring RH in labs and plants
Fisherbrand™ Traceable™ Precision Lollipop™ Water-Resistant Thermometers
This digital and water-resistant thermometer provides results in two seconds

Accuracy | ±0.5°C from -20°C to 200°C, ±1°C otherwise |
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Type | Lollipop Thermometer |
Temperature Accuracy | ±1.5°C |
Width (English) | 1 in. |
Display Type | LCD |
Temperature Range (English) | -58°F to +482°F |
Weight (English) | 2 lb. |
Certifications/Compliance | NIST |
For Use With (Application) | Temperature Monitoring |
Temperature Range (Metric) | -50°C to +250°C |
Width (Metric) | 2.54 cm |
Weight (Metric) | 0.907 kg |
Resolution | 0.1°C |
Type | Thermohygrometer |
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Diameter (Metric) Outer | 12.7 cm |
Diameter (English) Outer | 5 in. |
Temperature Range (English) | 32°F to 248°F |
Material | Stainless Steel |
Humidity Range | 0 to 100% |
For Use With (Application) | Measurement of temperature and humidity, ideal for use with environments that can withstand the elements such as inside incubators, refrigerators and freezers |
Temperature Range (Metric) | 0°C to 120°C |
Brannan Max. and Min. Room Thermometer and Hygrometer
Thermometer and Hygrometer with auto reset max. and min. and desk stand
Dostmann Electronic™ Temperature Humidity Instrument
This robust, reliable, ready-to-use temperature humidity instrument is a perfectly designed instrument for climatic measurements (HVAC branch).
Accuracy | ±3% |
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Type | Thermohygrometer |
Temperature Accuracy | ±0.5°C |
Display Type | LCD |
Material | Plastic |
Humidity Range | 0 to 100% |
Temperature Range (Metric) | -40°C to +70°C |
Weight (Metric) | 130 g |