Therma Differential 2 Channel Thermometer K-Type ETI 231-022

Therma Differential 2 Channel Thermometer K-Type ETI 231-022
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 Therma Differential 2 Channel Thermometer K-Type ETI 231-022Therma Differential 2 Channel Thermometer K-Type ETI 231-022 
Our Price:  £87.00(Inc. 20% VAT)(£72.50 Exc. VAT)

Product Code:  231022c21
Brand:  ETI Thermometers

Product Availability:  

No stock, delayed despatch  

No stock, delayed despatch

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  (1 Review)

Therma Differential 2 Channel Thermometer

A robust waterproof case offering IP66/67 protection
Ideal for radiator balancing or HVAC applications
Great for plumbers, reliable & easy to use
Backlight, max/min & hold functions
The price does not include any probes
we do have a range of K-type probe to fit this unit Visit our Probe Selection Click Here

The NEW Therma Differential digital thermometer allows the user to use two type K thermocouple probes simultaneously.

The display can be switched to show probe T1 or T2 temperature or the difference between probes T1 and T2 (T1-T2). This allows, for example, the temperature drop across radiators or the temperature rise or fall of two items to be measured.

The Therma Differential measures temperature over the range of -99.9 to 299.9 C with a 0.1 C resolution or 300 to 1372 C with a 1 C resolution. The thermometer features a custom, LCD display with C, T1, T2, diff, hold, open circuit, low battery indication and an optional backlight. The unit incorporates an auto-power off facility that automatically turns the instrument off after approximately ten minutes, maximising battery life.

Each thermometer is housed in a durable, ABS case that has an integrated rubber seal to ensure complete water tightness and help reduce the possibility of damage in harsh environments.


Therma Differential thermometer

range 0.1C, -99.9 to 299.9C
range 1C, 300 to 1372C
resolution 0.1 C to 299.9C thereafter 1C
accuracy 0.4 C 0.1 % of reading
battery 3 x 1.5 volt AAA
sensor type K thermocouple
display 15mm LCD
dimensions 32 x 71 x 141mm
weight 220 grams
Comes with a carry case to help avoid damage
case material: ABS plastic
display type: LCD with backlight
probe/sensor style: no probe included
power source: battery powered
country of manufacture: United Kingdom
warranty: two years
certification: traceable calibration certificate
power saving: auto-off
measurement scale: Celsius/Fahrenheit
display hold: yes
max/min function: yes
battery monitor: yes
Average Rating (1 Review):  
Write a Review and share your opinions!

ETI 231 050
Monday, 26 September 2016  | 

I spoke to Steph, not really knowing what I needed for the task; she sorted out what I needed (somewhat different to what I had thought I needed,- but much better!); and then she told me 10-14 days....
I needed it before then, I realistically had 5 days. She said she would see what she could do. Not even 48 hours later and it arrived, complete with the bespoke longer probe.
Brilliant job! Brilliant piece of equipment! Brilliant advice. Pay rise all round?!

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Shipping And Handling

1st Class post up to 14 days for delivery Long delays due to Covid-19

Carrier Service 1-14 days, is an estimated day of delivery is given when you place a order.

Delivery can be from 8.30am to 6pm

Please note all shipping is PER ORDER , NOT PER ITEM

Next day delivery is extra but we can not be held liable for the carriers delaying the (WEEKENDS AND BANK HOILIDAYS ARE NOT INCLUDED IN 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 takes 48 hour

We must have the order by 3pm to have a chance of getting the order out the same day ( AS LONG AS GOODS ARE IN STOCK) Next day not available for European Orders

ORDERS OVER £65 POST FREE (Excluding European Orders)

For those orders over £65 we will send Post Free. To 1 address if more then 1 address per order, a delivery charge either £6.96 or £3.60 will be added
Once the parcels have left our premises the responsibility for delivery is with the Royal Mail or our Carrier.

We are not responsible for late delivery's that may of happened once the parcel has left us as we will try and get the parcel out to you as fast as we can. Please contact us if any problems, problems do happen but we are always here to help.
Or if you are still waiting for a parcel (over 10 working days Royal Mail) please let us know so we can sort out the problem.
Orders are dispatched by post / carrier to the name and address you have given to us. 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 We process your order right away. We will normally send your order to you in 2 - 5 business days . International orders are generally received in under 10 days.
Does not Include Trade Orders OR Purchase Orders

A calibrated thermometer if ordered in error / or not wanted can only be returned upto 14 days after purchase because the certificate has a expiry date

We accept Orders from Government based purchases, we regularly supply 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 purchase order

P&P on all Purchase Orders under £65 (ex Vat) £5.42+VAT
P&P will be free on Orders over £65 (ex vat)

Send your order by Email:-

Payment must be made within 30 days by BACS or Cheque