Precision Thermohygrometer Model 225-930
Technical Characteristics:

Great accuracy (± 3%)

Polished brass case (6" dia x 1 5/8" D)

4 3/4" white dial

"Supratherm" synthetic sensor element

Measuring temperature from 4° to 122°F (°C also)
Applications:

Door mounted, 225-930 dial Thermohygrometer is a small but very effective and accurate Temperature and Humidity meter, measuring humidity from 20 to 100%. Enables you to tell at a glance if your room is too dry or too damp and too hot or too cold. Suitable for all uses, including, pianos, incubators, cellars, homes, museums, etc.
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Temp Tracker Display model 225-46203
Technical Characteristics:

Range:
   *Temperature: -50.0F to 150.0F, -50.0ºC to 50.0°C
   *Relative Humidity: 0-100%

Display Resolution:
   *Temperature: 0.1F, 0.1°C
   *Relative Humidity: 1%
   *Dewpoint: 1F, 1°C

Voltage Outputs: 0-5Vdc Full Scale for T & RH

Power Requirement: 12 to 30 Vdc, 4.5 W

Dimensions: 5.43" x 5.65" x 1.4" (144 mm x 144 mm x 138 mm)

RS485 output for interfacing with serial devices
Applications:

Door mounted, 225-46203 Thermohygrometer is a small but very effective and accurate Temperature and Humidity meter. Enables you to tell at a glance if your room is too dry or too damp or too hot/cold. Suitable for all uses, including, pianos, incubators, cellars, homes, museums, etc.
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Humidity-Temperature Digital Chart Recorder model 225-RH520
Technical Characteristics:

Relative humidity range: 10 to 95.0% RH

Temperature range: -20.0F to 140.0F (-28ºC to 60 °C)

Accuracy: ± 3% RH; ± 1.8F (± 1°C)

Dimensions: 5" x 7.7" x 0.9" (129 x 195 x 22 mm)

Weight: 12.6 oz (357 g)
Applications:

Monitor and record laboratory or clean room temperature and humidity history; record process conditions; generate warning when conditions are outside required limits; monitor controlled environment areas such as freezers, storage areas, and other critical areas; store humidity and temperature historical data for report generation.
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Digital Humidity & Temperature Meter Model 225-4465CF
Technical Characteristics:

Humidity: Range 10-95%, Accuracy ±3%

Temperature: -4/140°F (-20/60°C), Accuracy ± 1.5°F (± 0.8°C)

Dimensions: 10.6" x 2.7" x 1.0" (272 mm x 69 mm x 26 mm)

Weight: 7.1 oz (200g)

Large 3.5 digit LCD display indicates function and low battery
Applications:

Thermometer and hygrometer are built in a rugged case for use in a variety of locations and applications including offices, factories, clean rooms, greenhouses, fire and flood restorations, etc.
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