Thermometers Direct

Therma-Hygrometer | External Temperature Probe | ETI 810-140

(Inc. 20% VAT)
(£12.50 Exc. VAT)
22 in stock, immediate despatch
Product Code
ETI Thermometers

ETI Therma-Hygrometer with Internal & External Temperature Probe 810-140

The ETI 810-140 Therma-Hygrometer shows both the humidity and temperature in addition to indicating and recording the maximum and minimum readings.

The external remote probe with integrated three metre lead the unit measures both temperature and humidity over the range of -20 to 70 °C and 10 to 99 %rh.
The internal sensor the therma-hygrometer measures temperature over the range of 0 to 50 °C.
The ETI therma-hygrometer is ideal for monitoring both temperature and humidity in rooms, offices, factories and much more.
The ETI Therma-Hygrometer with internal & external temperature probe is in a plastic case, measuring 20 x 100 x 110 mm. This has a folding stand and a hole slot for hanging on a wall.


Temperature 0 to 50 °C
Humidity 10 to 99%rh
Range Internal 0 to 50 °C
Range external -20 to 70 °C
Resolution 0.1°C /°F
Accuracy 1%rh /±1°C ±5%rh
Battery 1.5 volt AAA
Dimensions 20 x 100 x 110mm
Weight 170 grams

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Delivery Costs

Shipping And Handling

We use Royal Mail 48hr tracked, Parcelforce and DHL to deliver direct to UK mainland addresses, this will be selected based on weight and order value. You are able to upgrade your delivery to a next day service at an additional charge.

Please note shipping is charged per order, not each thermometer.

Next day delivery may be subject to delays by the courier which are outside of our control (please note that weekends and bank holidays are not classed as working days). Highlands and Islands / IV BT, IM TR 21-25, HS, KA27,28, KW1-3, 5-15, PA20-49, 62-77,61,78,PH17-26, 30-44, 49-50, ZE1-3 postcodes are sent on a 48hr service.


For those orders over £72 we will send post free to one address. However if more then one address per order, a delivery charge either £7.50 or £3.96 will be added
Once the parcels have left our premises the responsibility for delivery is with the Royal Mail or our Carrier.

Orders may be subject to delays by the courier which are outside of our control. If you experience any difficulties with the delivery of your thermometers please contact us.

Non delivery most be notified to us after 10 working days.

Please ensure all delivery information is correctly entered (including a phone number and valid email address). If we have received incorrect or inadequate information for the delivery of the goods we cannot accept any liability for late or failed delivery as a result of this.

Delivery Schedule

For orders placed Monday to Friday we aim to process your order right away. Orders placed after 2pm will be sent the next working day. Orders received after 2pm on Friday will be sent out on the following Monday (or next working day if a bank holiday)

This does not Include trade orders or purchase orders.

A calibrated thermometer if ordered in error can only be returned up to 14 days after purchase.

Purchase Orders

We accept purchase orders from the following organisations:

  • Hospitals, PCT's, NHS Foundation Trusts
  • Police Force, Fire Service
  • Councils
  • Prison Service
  • All British Military Forces

There is £50 minimum order value for all purchase orders

P&P on all Purchase Orders under £72 is £7.50 ( £6.25 Ex VAT )
P&P will be free on Orders over £72 Including VAT

Send your order by Email:-

Payment must be made within 30 days by BACS or Cheque

ETI Thermometers