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Twin Plus Wireless Min/Max Thermo-Hygrometer

26.95 £26.95
  • Buy 5 for £25.60 each and save 6%
  • Buy 10 for £24.26 each and save 11%
  • Buy 20 for £21.56 each and save 20%
Twin Plus Wireless Min/Max Thermo-Hygrometer

From TFA Dostmann, the Twin Plus digital thermo-hygrometer has some great features. The unit will record minimum and maximum temperature & humidity  measurements reached, for both the indoor base station and the remote temperature sensor. The base station itself has a double screen. enabling you to simultaneously view current indoor or outdoor temperature & humidity, aswell as the minimum & maximum values reached for both temperature &humidity since the last reset. 

The temperature & humidity sensor has a handy screen, and transmits across 30m open field. It is fully weatherproof and can be left outside all year round, exposed to the elements. There is also a humidity alarm built in to the base.

The indoor base station also has a handy frost symbol, aswell as a comfort level indicator which works using the humidity measurement. The unit is finished in a modern aluminium look, with sleek silver writing.

Temperature Range

  • Indoor Range: from -10°C to 50°C
  • Outdoor Range: from -20°C to 50°C
  • Measure Units: °C and °F

Humidity Range

  • Indoor Range: from 20% to 95%
  • Outdoor Range: from 20% to 99%
  • Measure Units: %


  • Memory: 24 hour
  • Reset: Auto

Comfort Level

  • Happy face display when indoor temperature and humidity reach a certain measurement


  • Temperature Alarm
  • Frost alert


  • Distance: 30m Open Field
  • Type: Wireless


  • Display: L 137 x D 17 x H 83mm


  • Type: AAA (Not included)
  • Life: 12-18 months

Supplied With

  • 1 x Twin Base Station
  • 1 × 30-3048 Temperature and Humidity Sensor
Base Station Temperature Range
–10°C to +50°C
Wireless Sensor Temperature Range
-20°C to +50°C
Base Station Humidity Range
20% to 95%
Wireless Sensor Humidity Range
20% to 99%
Indoor Temperature
Indoor Humidity
Outdoor Temperature
Outdoor Humidity
Min/Max Readings
Min/Max Reset
Transmission Frequency
433 MHz
Display On Sensor
Remote Sensor
High/Low Temp Alarm
Comfort Level Indicator
Dual Display
Measuring Units
%, °C & °F
Temperature Accuracy
+/- 1°C
Humidity Resolution
Can Be Calibrated
1 Year
Max Wireless Sensors
Transmission Range
100m Wireless
Size : Depth
Size : Height
Size : Width

Delivery Charges



Standard UK Delivery - Prices start from £2.95


Next Day Service (Working Day) – £7.99


Next Day By 9am Service – £14.95


Next Day By 10am Service – £11.95


Next Day Saturday Service – £13.95


You can order a next day service up until 3pm for delivery the following working day. We do offer a Saturday delivery option if ordering on a Friday - if you do not select this option and you order after 3pm on a Friday, your delivery will arrive on Tuesday. 

Please note, some UK outlying regions may not be eligible for next working day as laid out in the terms and conditions of the delivery companies. In these instances they will expedite your delivery to the fastest service available.


UK Deliveries

We deliver to all UK post codes including surrounding islands.


Southern Ireland & Eire


We are able to deliver to all parts of Southern Ireland on a standard delivery service (typically 3-6 working days). The shopping cart will automatically calculate charges for this.

Deliveries Abroad

We are able to arrange delivery abroad and the shopping cart will automatically calculate charges for this.

Your 30 Day Money Back Guarantee


30 Days To Decide


We want you to be absolutely delighted with your order, so we are very happy to offer a 30 day money back guarantee to give you plenty of time to decide.

If it’s not exactly what you want, or if it does not fulfil your needs, you can send it back - no matter what the reason.  We want you to be 100% happy with your purchase.

No complicated list of do's and don’ts, all we ask is that the item is returned unused in the original packaging and that you have taken reasonable care.

Exclusions From The 30 Day Returns Policy

Items not normally stocked such as bespoke, hand made, peronalised with art work such as logos are not eligable for the 30 day return policy.  

Bulk orders:  If you wish to order a large quantity of one product or are wishing to have artwork such as logo's added we are happy to provide a sample before comitting to a large quantity. Once you are happy with the product any orders for bigger quantities will not be eligble for the 30 day returns policy.


After 30 Days


We really want you to be happy with your purchase, but if you do decide after the 30 day period that you would like to return the order,  you may still be able to and receive a credit note, this is reviewed on a case by case basis.

Please contact us and we will do all we can to help. A restocking fee may apply if the item has been opened and items that have been used will not be credited. Any credit notes issued must be used within 60 days of issue.


The Boring Bit...


Items being returned must have all their original packaging, along with all accessories received with it, any sealed items must still be sealed and unused. We will refund the cost of your purchase including the delivery charge. However we will not refund the cost of returning any items that are unwanted and if you request a collection this will be deducted from your refund.

We are sorry to say that items returned in a used condition or missing packaging will not be refunded and will be returned to you.

How To Return


To notify us that you wish to return your goods please contact us via telephone or e-mail. Once we receive your request we will send you an email with full details of how and where to return the goods including a returns number, which must be clearly displayed on the packaging.

Returns normally take only a few days to process but please allow up to 10 working days.


On Account

We accept Pro-Formas for Government based purchases, we regularly supply the following organisations - 
  • Schools
  • Hospitals
  • Colleges
  • Universities
  • Museums
  • Theatres
  • Councils
  • Police Forces
  • Fire Service
  • Registered Charities
  • Prison Service
  • All British Military Forces
  • All Government Bodies

There is no minimum order value or quantity and we offer discount for larger quantities.

If you have any questions at all please call us on 01525 552032 where our friendly staff will be happy to help you.

How to get a Pro-forma:

Please provide details below:

  • Organisation type eg. Hospital / School/ Council
  • Your purchase order reference number
  • Billing name and address
  • Please indicate where to which department to send invoice. This can be emailed through to the relevant place.
  • Delivery address, where you would like the products delivered
  • Product code and quantities required
  • Contact name
  • Phone number
  • Fax number
  • Email address
We can accept payment via BACS, Cheque, Credit Card or PayPal.
Please send your purchase order through to either or the following address - 

MDG Retail Ltd

Unit 6 Youngs Industrial Estate
Stanbridge Road
Leighton Buzzard
LU7 4Q

We will send you an email order confirmation once it has been processed.  Payment must be made within 14 days of receiving goods. Your invoice will be enclosed with your goods unless a different delivery address is requested, in which case it will go to the billing address.