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Testo 425 Compact Thermal Anemometer 0560 4251

The compact testo 425 anemometer with permanently attached thermal flow probe (probe head Ø 7.5 mm) including telescopic handle.

Next Day Delivery (subject to availability)

£313.00 excluding VAT £375.60 including VAT @ 20% Regular Price: £418.80
  • Fast Respons Time
  • Telescopic
  • Wide Range of Applications
  • Air Volume Measurement
  • Min/Max/Average
  • Temperature Measurement
  • Velocity Measurement
  • Large Backlit LCD Display
  • FreeDelivery
  • 30DayMoneyBack
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  • Description
  • Features & Specification
  • Resources
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Testo 425 Compact Thermal Anemometer

 

Overview:

In order to establish whether an air conditioning or ventilation system is functioning properly, among other things you need to check the flow speed or the volumetric flow in the ventilation duct. If the air flow velocity is too low, the room loads are not correctly discharged and optimum room air quality can no longer be guaranteed.

 

Testo 425 thermal anemometer for quick, easy flow measurement

The testo 425 thermal anemometer enables quick spot measurements in ventilation ducts. It records the flow speed, calculates the volumetric flow and also measures the temperature. With a measuring range of 0 to +20 m/s, the anemometer is particularly well suited to low air flow velocity.

The thermal anemometer features a telescopic flow probe. The telescope can be extended to a length of up to 820 mm and has a probe head diameter of 7.5 mm.

As well as flow speed, would you also like to detect the volumetric flow on your air conditioning or ventilation system? This is no problem for the testo 425 thermal anemometer. When you input the duct surface area, it automatically calculates the volumetric flow during the flow measurement. Single and multi-point averaging provides an indicator of the average volumetric flow, flow speed and temperature reading.

You can read off the current readings and the min/max and calculated mean value at any time on the illuminated display. Using the Hold button, you can freeze the current reading in order to compare it with another value, for example. If you should ever forget to switch off the anemometer, the Auto-off function will take care of this for you. This conserves your batteries and ensures that your thermal anemometer is ready for use in the next measurement.

 

Key Features:

  • Temperature, flow and volume flow measurement
  • Multi-point and timed mean calculation
  • Max/min values
  • Hold button to freeze readings
  • Display light
  • Auto Off function

 

Spares & Accessories (Not Supplied):

To make sure that you are well-prepared for any circumstances, we recommend that when purchasing the anemometer, you also order our practical accessories: as an added option we offer a handy pocket, a transport case and also the TopSafe protective cover (to protect the anemometer from water, dirt and impacts).

 

ISSWWW and Testo

Testo Limited was established in 1983 as the UK subsidiary of testo and is based in Alton, Hampshire where they supply a full range of test equipment across the UK and Ireland. They are a key supplier to the Facility Management and Industrial Maintenance Sectors where they are able to provide the full range of instruments which are critical to the effective and efficient maintenance of premises, and allow compliance with all key regulations.

Testo have many innovative products to their portfolio with a modern attractive design. Aesthetic appeal isn't something usually attributed to test equipment but Testo really breaks the mould. Coupled with their pedigree as a worldwide manufacturer and supplier with a proven track record, we are confident in supplying and recommending Testo products without reservation.


Testo 425 Compact Thermal Anemometer

Storage temperature

-40 to +85 °C

Operating temperature

-20 to +50 °C

Battery type

9V block battery, 6F22

Battery life

20 h

Weight

285 g

Dimensions

182 x 64 x 40 mm

Material/Housing

ABS

Probe - NTC

Meas. range

-20 to +70 °C

Accuracy

±0.5 °C (0 to +60 °C)

±0.7 °C (remaining range)

Resolution

0.1 °C

Probe - Thermo

Meas. Range

0 to +20 m/s

Accuracy

±(0.03 m/s +5% of mv)

Resolution

0.01 m/s

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.