Applications • Greenhouses • Office Environment • Environmental Studies • Weather Monitoring • Food Distribution • Labs • HVAC Installation and Maintenance • Art Galleries/Museums • Hospitals and Clinics • Printing Industry • Store Rooms • Department Stores
Specifications Display: 31/2 digit LCD Low Battery Indication: A symbol is displayed when the battery voltage drops below the operating level Battery Life: 200 hours, typical use Operating Ambient: 0 to 50°C (32 to 122°F), at <75% R.H. Storage Ambient: -20 to 60°C (-4 to 140°F), 0 to 80% R.H. with battery removed from meter Accuracy: Stated accuracy at 23°C ±5°C (73°F ±9°F), <75% R.H. Dimensions: 167 H x 48 W x 24 mm D (6.57 x 1.89 x 0.95") Weight: 87 g (3 oz) incl. batteries
Temperature Sensor: Thermistor Range: -20 to 60°C (-4 to 140°F) Resolution: 0.1°C (0.1°F) Accuracy: ±0.5°C 0 to 45°C; ±1°C -20 to 0°C, 45 to 60°C; ±1°F 32 to 113°F ±2°F -4 to 32°F, 113 to 140°F
Relative Humidity: Sensor: Capacitive humidity sensor Range: 0% to 100% R.H. Resolution: 0.1% R.H. Accuracy: ±2.5% @ 25°C (77°F), 10% to 90% R.H., ±5% @ 25°C (77°F), 0% to 10% R.H., 90% to 100% R.H. Sensor Response Time for 90% of Total Range: 60 sec typical Sensor Hysteresis (Excursion of 10% to 90% to 10% R.H.): ±1% R.H. typical
Rated 4 out of
Good tolerance for the moneyWe have used these in the past, they are not adjustable should they fail calibration. We have moved to the RH92, not as accurate but adjustable and less expensive. Know your application before purchasing.
Date published: 2016-04-01
Rated 5 out of
just what you expectedWorks perfectly. Note that the C, F, and APO options are switches, not buttons. So, you need to pry out the rubber strip to access them.
Date published: 2016-03-28
Rated 5 out of
Useful InstrumentAssuming that the calibration of the instrument is correct -- the device provides exceptional value in monitoring RH. The directions provided could be made less ambiguous and more detailed. But, experimentation with the device can resolve the uncertainties.