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. 123-2340
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. 123-2339
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. 123-2238
BrandRS PRO
£166.10
Each
Units
4kΩ - ±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. 144-5353
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
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. 144-5352
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. 489-674
Mfr. Part No.1000-346
BrandMegger
£1,090.00
Each
Units
200kΩ - ±2% + 3 Digits LCD CAT IV 100 V 3 h AA Battery 203 x 78 x 148mm 1kg 148mm Calibration Certificate, Case, Spike, Test Lead 203mm +55°C
RS Stock No. 521-728
Mfr. Part No.DET4TCR2
BrandMegger
£1,139.00
Each
Units
200000Ω RSCAL ±2% + 3 Digits LCD CAT IV 100 V 3 h AA Battery 203 x 78 x 148mm 1kg 148mm Calibration Certificate, Case, Spike, Test Lead 203mm +55°C
RS Stock No. 489-664
Mfr. Part No.1000-345
BrandMegger
£980.00
Each
Units
200kΩ - ±2% + 3 Digits LCD CAT IV 100 V 3 h AA Battery 203 x 78 x 148mm 1kg 148mm Calibration Certificate, Case, Spike, Test Lead 203mm +55°C
RS Stock No. 521-718
Mfr. Part No.DET4TC2-RS
BrandMegger
£1,029.00
Each
Units
200000Ω RSCAL ±2% + 3 Digits LCD CAT IV 100 V 3 h AA Battery 203 x 78 x 148mm 1kg 148mm Calibration Certificate, Case, Spike, Test Lead 203mm +55°C
RS Stock No. 514-4688
Mfr. Part No.DET3TC EARTH TESTER RC
BrandMegger
£684.00
Each
Units
2000Ω RSCAL ±2% + 3 Digits LCD CAT IV 100 V - AA Battery 203 x 78 x 148mm 1kg 148mm Case, Stake & Reel Set 203mm +55°C
RS Stock No. 514-4666
Mfr. Part No.DET3TC
BrandMegger
£635.00
Each
Units
2kΩ - ±2% + 3 Digits LCD CAT IV 100 V - AA Battery 203 x 78 x 148mm 1kg 148mm Case, Stake & Reel Set 203mm +55°C
RS Stock No. 705-7227
Mfr. Part No.1000-761
BrandMegger
£1,154.00
Each
Units
1500Ω RSCAL 1.5 % LCD CAT IV 600 V 24 h AA Battery 248 x 114 x 49mm 985g 49mm Battery, Calibration Check, Carrying Strap, Case, User Manual 248mm +50°C
RS Stock No. 705-9422
Mfr. Part No.1000-761
BrandMegger
£1,105.00
Each
Units
1.5kΩ - 1.5 % LCD CAT IV 600 V 24 h AA Battery 248 x 114 x 49mm 985g 49mm Battery, Calibration Check, Carrying Strap, Case, User Manual 248mm +50°C
RS Stock No. 705-7218
Mfr. Part No.1000-761
BrandMegger
£1,174.00
Each
Units
1500Ω UKAS 1.5 % LCD CAT IV 600 V 24 h AA Battery 248 x 114 x 49mm 985g 49mm Battery, Calibration Check, Carrying Strap, Case, User Manual 248mm +50°C
RS Stock No. 489-670
Mfr. Part No.1000-366
BrandMegger
£1,630.00
Each
Units
200kΩ - ±2% + 3 Digits LCD CAT IV 100 V 3 h AA Battery 203 x 78 x 148mm 1kg 148mm Calibration Certificate, Case, External AC/DC Adapter, Field Calibrator, ICLAMP & VCLAMP, Terminal Adapter, Test Lead 203mm +55°C
RS Stock No. 794-4893
Mfr. Part No.KMP7010
£436.00
Each
Units
4000Ω RSCAL ±2 % LCD CAT III 400 V - AA Battery 160 x 101 x 71mm 500g 71mm Auxiliary Ground Rods, Strap & Carrying Case, Test Lead set Batteries ( 6 x AA), Test Lead Set for 3 Point Test, Users Manual 160mm +40°C
RS Stock No. 794-3115
Mfr. Part No.KMP7010
£387.00
Each
Units
4kΩ - ±2 % LCD CAT III 400 V - AA Battery 160 x 101 x 71mm 500g 71mm Auxiliary Ground Rods, Strap & Carrying Case, Test Lead set Batteries ( 6 x AA), Test Lead Set for 3 Point Test, Users Manual 160mm +40°C
RS Stock No. 910-6810
Mfr. Part No.1007-331
BrandMegger
£1,220.00
Each
Units
1.5kΩ - 1.5 % LCD CAT IV 600 V 24 h AA Alkaline Battery, Mains 248 x 114 x 49mm 985g 49mm CD-ROM, User Manual 248mm +50°C
RS Stock No. 437-803
Mfr. Part No.DT300
BrandCatu
£283.36
Each
Units
2kΩ - ±3% + 1 Digit LCD CAT III - - Mains 210 x 71 x 51mm 340g 51mm Extension Reel, Probe 210mm +45°C
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