Stelpro USA

It appears you’re in Canada. You’re currently viewing the American website. Note that currencies and availability on the American and Canadian websites differ.

Vous semblez provenir du Canada, mais vous êtes actuellement sur le site américain. Veuillez noter que les devises et la disponibilité des produits diffèrent d’un site à l’autre.

Stay on the American website
Rester sur le site américain

Visit the Canadian website
Aller sur le site canadien

All Systems Operational

Since Tuesday, 02/23/2021 04:00
Eastern Time Zone

  • logo Flextherm

Electronic Thermo-hygrometer

“Easy to read” thermo-hygrometer

STHW Discontinued product

A thermometer and a hygrometer in the same unit. The big figures facilitate the indoor and outdoor temperature reading as well as the ambiant relative humidity reading.

Product images

  • STHW face


  • Easy to read numbers
  • Can be installed on walls or furniture
  • Waterproof exterior sensor with extremely thin cable (3 meters)That can be easily lead through the window sealing


  • White


  • Battery 1.5 V AAA (included)


  • 4 ¾ x 4 ¾ x 1 7/32 in.


  • Temperature: 1°C (1°F) humidity: 1 %


  • Indoor temperature 0°C ~ +50°C (32°F ~ 122°F)
  • Outdoor temperature -50°C ~ +70°C (-58°F ~ 158°F)
  • Humidity 15 % ~ 95 % (RH)


  • Electronic display of indoor humidity and indoor and outdoor temperatures
  • Switch for indoor/outdoor temperature display
  • Memory minimum & maximum values
  • Waterproof exterior sensor with cable (included)
  • Celsius and Fahrenheit switch


  • Wall mount hanger
  • Fold-out stand for free standing use
  • Sensor with extremely thin cable easily leading through the window sealing


  • One year