Thermometers Direct

Comark PDQ400 Waterproof Thermometer

(Inc. 20% VAT)
(£20.00 Exc. VAT)
(25 Reviews)
22 in stock, immediate despatch
Product Code
Comark Thermometers

Waterproof Thermometer Comark PDQ400

Designed for constant use in humid environments such as kitchens, swimming pools and spas, this handy waterproof pocket digital thermometer will provide fast temperature readings due to its thin probe tip.
The Comark PDQ400 Waterproof Pocket Digital Thermometer is a handy kitchen tool designed for quick and accurate temperature measurements.

Here are the key features of the PDQ400:

  • Accuracy ± 0.5ºC, 1ºF,
  • Waterproof
  • Thin tip probe
  • Response in under 6 seconds
  • Extended range -20º TO 200ºC, -4º to 400ºF
  • Auto power off
  • Maximum temperature hold
  • Slim profile fits flat in pocket
  • Data hold to freeze a reading
  • Withstands constant use in wet or humid conditions
  • NSF
  • Field Calibratable
  • BioCote® anti-microbial protection
  • Battery LR44
Customer Reviews (25)
Write a Review and share your opinions!
25 Reviews:

Perfect thermometers
04 December 2022  | 

I am using these to check water temperatures for cold water swimming. Easy to calibrate with crushed ice bath. Both are extremely accurate, read the temperature within 6 seconds. Small and easy to take with me wherever I am swimming plus waterproof. Very high quality product. Highly recommended

2 of 2 people found this review helpful.
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Comatk pdq400
11 February 2021  | 

Excellent product and service. For open water swimming and works great.

2 of 2 people found this review helpful.
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Amazing product and service
13 December 2017  | 

This thermometer is perfect, just what i wanted.
Its really easy and simple to use, its completely waterproof which is amazing, it makes it so much easier to use and to clean as you don't have to worry about having wet hands or dropping it in the sink.
The packaging was really good quality and the speed of postage was exceptional. Estimated delivery was the Wednesday and it arrived 2 days earlier on the Monday - impressive.
Both the product and service are outstanding and i would highly recommend. Prices are extremely good and competative, im extremely pleased with my purchase.
Many thanks

1 of 1 people found this review helpful.
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Really great thermometer
17 October 2017  | 

Bought this to enable me to test our water temperature at work for H&S regulations. It does the job perfectly well and was a great buy. Would recommend.

4 of 4 people found this review helpful.
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Just the job
27 September 2017  | 

Very accurate and simple to use. Ideal for measuring liquid temperatures.

Arrived promptly and well packaged.

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works fine
17 September 2017  | 

Bought to measure water temp at taps. Does the job.

2 of 2 people found this review helpful.
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Excellent product
14 August 2017  | 

Delivered very quickly and does exactly what I wanted

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Waterproof thermometer
17 April 2017  | 

Excellent product and excellent fast service. Would recommend to anyone

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good service
03 March 2017  | 

The product arrived quickly and works efficiently. A good service.

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18 February 2017  | 

I use this mainly for outdoor swimming- easily attaches to drawstring on trunks and stays inside them. Handy also for checking baby's bath temperature. Great thermometer- it's the second one I've bought having left the first somewhere on a Greek beach (when I really didn't need it anyway!)

6 of 6 people found this review helpful.
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Read all 25 customer reviews...

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

Comark Thermometers