Earth & Ground Resistance Testers

Earth and ground resistance testers are essential electrical instruments used to ensure the grounding resistance of appliances and equipment is sufficient. Ground and earth meters are vital for ensuring a safe path to earth is established, in case of utility over voltage or lightning strike.

What types of testers are available?

Ground and earth testers are available in a variety of formats including

  • Clamp
  • Desktop
  • Handheld
  • Plug in

Why is grounding important?

Testing the earth resistance of an appliance is an important test and measurement procedure as it ensures appliances are safe to use and also stabilises voltage levels. Grounding also prevents the risk of injury or death from a sudden over voltage or fault.


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Description Price Absolute Maximum Resistance Measurement Calibrated Best Accuracy Display Type Safety Category Battery Life Battery Type Power Source Dimensions Weight Height Includes Length Maximum Operating Temperature
RS Stock No. 123-2339
BrandRS PRO
£215.10
Each
Units
3999Ω RSCAL ±2 % + 3 Digits LCD - - AA Battery 190 x 140 x 77mm 800g 77mm 1 Set Test Lead, 4 x Auxiliary Earth Spikes, 8 x Battery, Carrying Case, Manual, Neck Strap 190mm +40°C
RS Stock No. 123-2340
BrandRS PRO
£235.10
Each
Units
3999Ω UKAS ±2 % + 3 Digits LCD - - AA Battery 190 x 140 x 77mm 800g 77mm 1 Set Test Lead, 4 x Auxiliary Earth Spikes, 8 x Battery, Carrying Case, Manual, Neck Strap 190mm +40°C
RS Stock No. 123-2238
BrandRS PRO
£166.10
Each
Units
3.999kΩ - ±2% + 3 Digits LCD - - AA Battery 190 x 140 x 77mm 800g 77mm 1 Set Test Lead, 4 x Auxiliary Earth Spikes, 8 x Battery, Carrying Case, Manual, Neck Strap 190mm +40°C
RS Stock No. 144-5352
BrandRS PRO
£144.00
Each
Units
2kΩ RSCAL ±2% + 3 Digits LCD CAT III 1000 V - AA Battery 200 x 92 x 50mm 700g 50mm 4 Iron Rods, 4 Sets Test Kits, 6 Battery, Cables, Carrying Case, Manual, Spikes, Test Certificate, Test Leads 200mm +40°C
RS Stock No. 144-5339
BrandRS PRO
£95.00
Each
Units
2kΩ - ±2 % LED - - AA Battery 200 x 92 x 50mm 700g 50mm Battery x 6, Carrying Case, Iron Rods x 4, Manual, Sets Test Kits x 4 200mm 40°C
RS Stock No. 144-5353
BrandRS PRO
£164.00
Each
Units
2kΩ UKAS ±2% + 3 Digits LCD CAT III 1000 V - AA Battery 200 x 92 x 50mm 700g 50mm 4 Iron Rods, 4 Sets Test Kits, 6 Battery, Cables, Carrying Case, Manual, Spikes, Test Certificate, Test Leads 200mm +40°C