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Thermo-Hygrometer with Dew Point

Code: W431
  • £65 ex. VAT
  • (FREE UK Delivery)
  • ( £78 inc. VAT )
| Usually despatched within 24 hours
Why Buy From PARRS
Free Delivery on everything & No Quibble Returns No hidden charges at the checkout, delivery is free to UK mainland
3 Year Guarantee All products are backed by a minimum 3 Year Guarantee against manufacturing defects
Parrs Priority Enjoy great discounts with a Parrs Priority Customer Account
Buy from the Experts Over 130 years experience in supplying workplace equipment

Compact, easy to use, robust instrument for fast, repeatable measurements of relative humidity, temperature and dew point. Ideal for single handed operation when taking measurements in air stream. Suitable for monitoring air conditioning and heating system ducts, controlled environments, storage areas etc.


  • Simultaneous display of humidity in %RH and temperature in °C or °F.
  • 35mm Hi-contrast LCD display with backlight.
  • Data hold freezes displayed measurements.
  • Minimum/maximum memory since power on for both temperature and humidity.
  • Auto power off after 15 minutes and low battery indicator.
  • Supplied with soft carry pouch and battery.
  • Tripod available to purchase separately.
  • Traceable calibration certificate available. Price and details on request.


  Temperature Humidity Dew Point
Range -20° to 70°C 0% to 100%RH -20° to 70°C
Resolution 0.1°C 0.1%RH 0.1°C
Accuracy ±1°C (-35° to -10°C)     ±4%RH  (0% to 20%RH)
±0.5°C (-10° to +70°C)  ±3%RH (20% to 40%RH)
±1°C (+70° to +100°C)  ±2.5%RH (40% to 60%RH)
                                       ±3%RH (60% to 80%RH)
                                       ±4%RH (80% to 100%RH)



Power 1 x 9V PP3 Alkaline Battery (LR-61)    
Dimensions 192 x 62 x 32mm    
Weight 151g    


FREE Delivery
Delivery is FREE on all orders to UK Mainland.

Next Day Delivery
Products held in stock at our warehouse in Redditch state FREE NEXT DAY DELIVERY. Orders received for these products before 3.00pm are despatched the same day for delivery to you next day (excludes remote areas of the UK and weekend deliveries).

Lead times for non-stocked items are also shown on the product page. If you require a product earlier than stated please call our Customer Service Team Tel: 01527 585777.

Delivery Overseas
If delivery is required outside of the UK, i.e. non-UK mainland and Ireland, Europe or the rest of the World, then additional delivery charges will apply. An email will be sent after your order has been placed detailing current delivery charges. 

No Quibble Returns/Refunds
We believe that PARRS products are the best you can buy. However, if for any reason you are not happy with your purchase, we shall replace the item or refund the purchase price subject to our standard Terms and Conditions.

Please call our Customer Service Team on Tel: 01527 585777 or email

Credit or Debit Card

We accept all major credit/debit cards, your payment will have to pass the 3D secure check and will then be processed immediately through our secure site. 

PayPal & Amazon Pay

For fast, easy payments you can use your PayPal account, once payment is received your order will be processed immediately.

Pay on Account 

Opt to pay by invoice on your 30 day credit account.

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