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Megger DET24C Earth Resistance Clamp 1007-331

The Megger DET24C. A new generation of earth resistance clamp tester.

Our Discount Guarantee

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)

£1,099.00 exc. VAT £1,318.80 inc. VAT £1,512.00 inc. VAT
  • 40mm jaw size
  • 200A AC
  • Hold Function
  • Data Logging
  • FreeDelivery
  • 30DayMoneyBack
Required Fields
  • Description
  • Features & Specification
  • Resources
  • Delivery (updated)

Megger Price Promise

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

Delivery Notices (Updated March 29th 2021)

During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
Coupled with manufacturers on reduced output due to more stringent working practices and a global shortage of component parts to supply UK manufacturing, we have taken the decision to 
temporarily limit our services rather than let our customers down amid these unprecedented circumstances.
We hope you will understand our position on this and we apologize unreservedly for the inconvenience we know it will cause.

Please note that ALL orders placed before 3:00pm are shipped same-day (subject to stock and any additional services required).
The stated transport times above have some scope for adjustment built-in for the Covid-19 situation. Carriers themselves also have their own extended workload and limitations at this time which are unfortunately beyond our control.

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 PM 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 your delivery.

Bank/Public Holidays

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 subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service  Price 
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT - Order by 3:0pm FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT - Order by 3:0pm £4.75
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 3:0pm      £7.75
Saturday ANYTIME Delivery - Order by 3:0pm £9.95

New Postage Map Sept 2018>

Delivery Surcharges

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

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

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable.