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Extech DT40M Laser Distance Meter

Extech’s DT40M measures distance up to 131ft (40m). It can calculate area and volume and the integrated Pythagorean Theorem allows the user to take indirect measurements.

Next Day Delivery (subject to availability)

£45.48 including VAT @ 20% £37.90 excluding VAT Regular Price: £53.52
  • 20 Measurement Memory
  • Area Calculation
  • Built-in bubble level
  • Large Backlit LCD
  • Measures up to 40m
  • Pythagorean Theorem
  • Stakeout function
  • Volume Calculation
  • FreeDelivery
  • 30DayMoneyBack
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Extech Laser Distance Meter DT Series 

Extech’s DTxx series distance meters can calculate area and volume and the integrated Pythagorean Theorem allows the user to take indirect measurements. Other features include continuous measurement with Min/Max distance tracking, 20 point memory, addition/subtraction of sequential readings, front or rear edge reference, and a Stakeout function. Large quad backlit LCD display and double molded housing. It also has a handy built-in bubble level and comes with a wrist strap and batteries.


Extech DTxx Come Supplied With:

  • Batteries
  • Wrist Strap
  • User Manual


Key Features:

  • Automatically calculates Area and Volume
  • Indirect measurement using Pythagorean theorem
  • Continous mode with min/max function
  • Displays Sum (+) / Difference (-) of multiple readings
  • Front or rear edge reference
  • Memory automatically stores 20 data points
  • Stakeout function allows user to accurately mark distances between studs (for wall framing) and fence posts
  • Built-in bubble level
  • Large quad-LCD display with backlit feature
  • Low battery indicator and Auto power off
  • Complete with 2 AAA batteries and wrist strap


Three Models Available:

Model Range Accuracy
DT40M 2" - 131ft (0.05 to 40m) ±0.08" (±2mm)
DT60M 2" - 196ft (0.05 to 60m) ±0.08" (±2mm)
DT100M 2" - 330ft (0.05 to 100m) ±0.08" (±2mm)



ISSWWW and Extech

Since 1971, Extech Instruments has focused on Test and Measurement tools built for the professionals, tradesperson and DIY’ers. Our single source strategy has made us the brand to turn to when it comes to tools that help prevent, identify and troubleshoot problems in a plethora of applications; whether it’s electrical, mechanical, maintenance, safety or environmental applications, our products are trusted by the professionals and are put to the test every day.

Extech DTxx Laser Distance Meters
SpecificationsDT40mDT60mDT100m
Measurement Range 2" to 131ft (0.05 to 40m) 2" to 196ft (0.05 to 60m) 2" to 330ft (0.05 to 100m)
Accuracy ±0.08" (±2mm) ±0.08" (±2mm) ±0.08" (±2mm)
Resolution 0.0", 0.00ft, 0.000m 0.0", 0.00ft, 0.000m 0.0", 0.00ft, 0.000m
Area calculation 99,999ft², 99,999m² 99,999ft², 99,999m² 99,999ft², 99,999m²
Volume calculation 99,999 ft³, 99,999 m³ 99,999 ft³, 99,999 m³ 99,999 ft³, 99,999 m³
Dimensions/ Weight 4.6 x 2.2 x 1.3" (116 x 56 x 32mm)/ 3.5oz (100g) 4.6 x 2.2 x 1.3" (116 x 56 x 32mm)/ 3.5oz (100g) 4.6 x 2.2 x 1.3" (116 x 56 x 32mm)/ 3.5oz (100g)

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.