Digital Psychrometer / Dew Point Meter


Caltech India offers CES-301 Digital Psychrometer / Dew Point Meter. Digital Psychrometer is easy to use and has the high accuracy to check the ambient temperature, relative humidity, dew point and wet bulb temperatures. in a wide range of professional, laboratory and industrial applications.

It is also called as digital sling psychrometer, thermo hygrometer, portable digital temperature, humidity meter, or digital hygrometer.

The purpose of digital sling psychrometer is used to measure both the dry bulb and wet bulb temperatures at time. Thermo hygrometer are useful for measurements of humidity. Humidity is a representation of the concentration of water vapour in the air where the value is shown as a percent. Thermo hygrometers have sensors which measure humidity of the air and temperature of the air.

The portable digital psychrometer / dew point meter Model CES-301 has option of humidity which measures %rh over the range of 0 to 100 %rh with a resolution of 0.01 %rh and temperature over the range of -20 to 60 °C with a resolution of 0.1°C.

This instrument also measures Wet Bulb Temperature, and Dew Point Temperature just by pressing one button of the instrument. This humidity meter incorporates a clear custom LCD display with °C, %rh, dew point, and max/min indication.

It has excellent features for fast, accurate measurements for analysis of critical environmental conditions:

Digital temperature & humidity Meter CES-301 is powered by 1.5V x 4 Batteries. An auto power off facility maximizing battery life.


  • Bright LCD screen with backlight displays both in analog bar and digital number. Very easy to read.
  • Data hold and Max./Min. value hold function.
  • Auto power off and low battery indicating protection.
  • Display wet bulb temperature or dew-point temperature
  • Relative humidity measurement unit
  • Memory, RAM position number

Main Technical Parameters:

Model: CES-301
Parameter Range Resolution Accuracy
Ambient temperature -20 to 60°C (-4°F~140°F) 0.1°C/°F ±1.0°C
Relative Humidity 0%~100% 0.10% ±3.0%
Wet Bulb Temperature -20°C~ 60°C (-4°F~140°F) 0.1°C/°F ±1.0°C
Dew Point Temperature -50°C~ 60°C (-58°F~140°F) 0.1°C/°F ±1.0°C
Power Supply AAA 1.5V x 4 Battery
Weight Approx. 200 gms
Size 84mm × 60mm × 29mm
Safety Rating CE CAT.III 300V RoHS

Portable digital hand-held digital hygrometer is used to monitor environment conditions for Cleaning, Protective Coating, and Painting Inspection.

It is suitable for paint manufacturer, painting inspector, painter, sand blasting contractors, finishing, anti- corrosion painting contractors to monitor climatic conditions during the application of a coating/lining. Determining the dew point enables to decide whether painting the surface in the existing conditions is advisable.

It is an essential instrument in power generation, natural gas drying, compressed air lines, medical oxygen, electrical circuit breakers, breweries, food cans packing, air dryers, air-conditioner manufacturers, pharmaceuticals, cold storage plants, automobile industries, freezing plants, automobile repair, quality control departments, petrochemical, welding, pipeline industry, aeronautical, chemical, packaging industry, offshore, oil & gas, water industries, and laboratories.

We are digital psychrometer and dew point meter manufacturers and suppliers in India and Worldwide. To know more about digital psychrometer price or dew point meter price in india and worldwide. Contact us.

We also provide repair services and calibration provide calibration of dew point meter, digital psychrometer, digital hygrometer, humidity meter, thermo hygrometer calibration services.

We do repair and undertake calibration of dew point meter, digital psychrometer, digital hygrometer, humidity meter, thermo hygrometer in India.

In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.

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