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Megger DET24C Digital Earth Clamp with PC Interface

Model: 1007-331 | Order No: DET24C

Large elliptical clamp design. Smooth mating surfaces on the clamp head.

Regular Price $1790.00 USD
Availability 3 to 4 Weeks

Megger DET24C Offers

The DET24C is an advanced clamp-on ground resistance tester that sets new standards in terms of access, performance, features, simplicity of operation and safety. The DET24C is used to measure earth/ ground resistance in multiple loop installations without disconnecting the ground.

Designed with flat core ends, these units prevent dirt build-up, ensuring measurement integrity and improved reliability over products with interlocking teeth. Other enhancements include safety to CATIV 600V, a built-in filter function for electrically noisy environments, time and date stamped stored test results and ultra long battery life. Megger has taken what is now a standard test method and significantly improved its field applicability.

The DET24C is designed to quickly measure ground electrode resistance in applications where this type of test method can be used and/or verify the integrity of ground connections. The goal of ground resistance testing is to ensure that the resistance ground electrode system is low enough to prevent or limit voltage rises caused by fault current, electrical surges, lightning strikes, etc.

Clamp-on ground testers work in applications where there is a loop resistance to measure with ground paths in the system (the more ground paths, the closer to the actual resistance). A utility pole ground system is a classic example of this type of application.


  • Large elliptical clamp (head) design
  • Smooth mating surfaces on the clamp head
  • CATIV 600 V operation
  • Noise filter function
  • Resistance and current limit alarm functions (visual and audible)
  • Intelligent data hold function (preset before testing)
  • Backlit display
  • Data storage (both models)/results downloading (DET24C)
  • Time and date stamped results
  • New ergonomic trigger design
  • Ultra long battery life (24 hours continuous) with readily available batteries


  • Pole grounds
  • Service entrance/meter ground electrodes
  • Service panels
  • Pad mount transformer grounds
  • Transmission tower grounds - utlility ground cables
  • Telephone pedestals
  • Telephone cabinets
  • Lightning protection ground electrodes

Megger DET24C Specifications

Max. jaw opening 39 mm
Max. jaw inner dimensions 39 mm x 55 mm
Display type 4 + 6 digit with backlight
Battery type 4 x 1.5 V IEC LR6/AA alkaline
Auto power down 300 s (reset by jaw action or button press)
Data logging 2 k records
Data download Opto-coupled IrDA-USB interface
Range selection Range selection
Sample time <1 seconds
Hold function Yes with visual indicator
Alarm function Yes with visual indicator
Warning buzzer Yes
Operating temp./humidity 20 to +50 °C, <85% RH
Storage temp./humidity -40 to +60 °C, <75% RH
Weight 985 g
Dimensions 248 mm (l) x 114 mm (w) x 49 mm (h)
IP rating IP30 with jaws closed
Performance IEC 61557-5, IEC 61557-13 Class 1
Safety EN 61010-2-032, CATIV 600 V, Pollution degree 2
EMC Class B Compliant, IEC 61326, BSEN 61326
s Click here for complete specifications on the Megger 1007-331

What's included with the Megger DET24C

  • Digital Earth Clamp with PC Interface
  • Carrying case
  • Carrying strap (wrist loop)
  • User guide CD-ROM
  • Calibration check
  • Battery AA (Alkaline) (4 required)
  • USB IrDA dongle
  • PowerDB Lite software

DET14C DET24C Digital Earth Clamp

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