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Megger DET24C Earth Resistance Clamp

The Megger DET24C. A new generation of earth resistance clamp testers. Part No: 1000-762

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Discounts are available on this Megger High Voltage Test Set. Please contact us via phone, e-mail or the web forms below for your industry leading price

Next Day Delivery (subject to availability)

including VAT @ 20%)
  • 40mm jaw size
  • 200A AC
  • Hold Function
  • Data Logging
  • FreeDelivery
  • 30DayMoneyBack
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Megger DET24C Clamp-on Earth Tester with Memory/Download

The upgraded version of the Megger's DET14C clamp meter, the DET24C is an advanced earth ground measurement tool with dedicated downloadable memory.

Featuring large-size clamping jaws, the DET24C fits around both earth cables and straps up to 50mm. The jaws are eliptical for easy connection and are designed with flat core ends that prevent dirt buildup and ensure measurement accuracy.

This earth tester can test ground resistance accross a range of 0.05 to 1500Ω without the need to disconnect the grounding. It also includes a dedicated true RMS ground leakage current function which can test from 0.5mA to 35A.

By using the built-in memory on this tester, up to 2000 records can be stored and viewed back on the instrument. Alernatively you can use the included USB IrDA dongle and software package to view and interact with your testing data on PC!


Megger DET24C Comes Supplied With:

  • Megger DET24C Digital Earth Test Clamp-On Meter
  • Carrying Case
  • Carrying Strap (Wrist Loop)
  • User Guide CD-ROM
  • Calibration Check
  • Battery AA (Alkaline) (4 Required)
  • USB IrDA Dongle
  • PowerDB Lite Software Package

Key Features:

  • Auto-current measurement safety feature
  • Memory to record and view results
  • Automatic self calibration
  • Auto ranging
  • High and low alarms
  • Real time clock for date and time stamping of results
  • IrDA USB interface to PC
  • Advanced memory functionality with download
  • Megger PowerDB/PowerDB LiteTM compatible
Megger DET24C Earth Clamp 1000-762
Resistance Measurements
Ground Resistance Range Resolution Intrinsic Certainty
0.05 to 0.99Ω 0.01Ω ±1.5% ± 0.05Ω
1.00 to 9.99Ω 0.01Ω ±1.5% ± 0.1Ω
10.0 to 99.9Ω 0.1Ω ±2% ± 0.5%
100.0 to 199.9Ω 0.1Ω ±5% ±1Ω
200 to 400Ω ±10% ±10Ω
400 to 600Ω ±10% ± 10Ω
600 to 1200Ω 10Ω ±20%
1200 to 1500Ω 10Ω ±35%
Alarm Settings
Alarm Type Range Resolution
Threshold 1 1 to 1500Ω
Threshold 2 1 to 1500Ω
Current Measurements (RMS)
Current Range Resolution Intrinsic Certainty
0.5mA to 0.99mA 0.01mA ±2% ± 0.05mA
1.00 to 9.99mA 0.01mA ±2% ± 0.05mA
10.0 to 99.9mA 0.1mA ±2% ± 0.1mA
100 to 999mA 1mA ±2% ± 1mA
1 to 9.99A 0.01A ±2% ± 0.01A
10 to 35A 0.1A ±2% ± 0.1A
True RMS readings up to a crest factor of 5.0 (peak current of 40A)
Accuracy guaranteed for 50Hz and 60Hz
Measurement over the range 16Hz to 400Hz
Maximum current is 100A RMS continuous and 200A RMS for 60s max at 50Hz and 60Hz
General Specs
Maximum Jaw Opening 39mm
Maximum Jaw Inner Dimensions 39mm x 55mm
Display Type 4 + 6 digit with backlight
Battery Type 4 x 1.5V IEC LR6/AA alkaline
Battery Life 24 hours continuous testing
Auto Power Down 300s (reset by jaw action or button press)
Datalogging 2000 records
Range Selection Automatic within each mode
Sample Time <1s
Hold Function Yes with visual indicator
Alarm Function Yes with visual indicator
Warning Buzzer Yes
Operating Temperature and Humidity -20 to 50°C, <85% RH
Storage Temperature and Humidity -40 to 60°C, <75% RH
Weight 985g
Instrument Dimensions 248 x 114mm x 49mm (L x W x H)
IP Rating IP30 with jaws closed
Performance IEC 61557-5
IEC 61557-13 Class 1
Safety EN 61010-2-032
Pollution degree 2
EMC Class B compliant, IEC 61326, BSEN 61326

Standard Delivery 3-5 Day Delivery – UK
£2.95 for all all orders under £40.00 (exld vat). Sent by Royal Mail Tracked, delivered/posted within 3-5 working days from the date of your order, subject to availability.

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

Express DPD Delivery 1-2 Day Delivery – UK Mainland only - Zone A & B
£4.50 select at the checkout. Sent using DPD on their Award Winning “Predict” Service with these great key benefits:

  • You are given a one hour delivery window. (no more waiting in all day for your parcel)
  • You are notified by text or e-mail on your parcels progress.
  • Change of plan? You can easily use the text or e-mail to rearrange your delivery.
  • Notifications on your parcel up to 15 minutes before delivery.

Orders must be placed before 3pm for next day delivery and a mobile number supplied, subject to availability.

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

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

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

  • Scotland, Isle of Wight & Isles of Scilly - £6.00  
  • Scottish Highlands and Northern Ireland - £12.00  Zone C
  • Scottish Islands, Isle of Man and Channel Islands - £14.00  Zone D
  • Southern Island - £15.00  Zone E


 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

 Zone 1:

  • France, Germany, Belgium, Netherlands, Luxembourg. £20.00 per parcel

Zone 2:

  • Austria, Denmark. £22.00 per parcel
  • Liechtenstein, Switzerland £47.00 per parcel (added cost for custom clearance surcharge)

Zone 3:

  • Czech Republic, Italy, Slovakia, Spain. £28.00 per parcel

Zone 4:

  • Estonia, Finland, Hungary, Poland, Portugal, Slovenia, Sweden. £50.00 per parcel

Zone 5:

  • Bulgaria, Croatia, Greece (incl islands) Latvia, Lithuania, Romania. £60.00 per parcel

Bosnia-Herzegovina, Iceland, Norway, Serbia. £85.00 per (added cost for custom clearance surcharge)

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