Na sistemụ DC, enwere ọtụtụ mmejọ ụwa gụnyere mmejọ ụwa na-apụtachaghị ìhè, mmejọ ụwa na-abụghị nke ọla, mmejọ ụwa nke ọma, mmejọ ụwa dị mma na nke na-adịghị mma, mmejọ ụwa nke ọma na nke na-adịghị mma, mmejọ ụwa ọtụtụ.
GDCR3200C Double Clamp Multifunctional Earth Resistance Tester bụ nke ahaziri ma rụpụta ya maka nha na saịtị nke nguzogide grounding, resistivity ala, voltaji grounding, grounding line leakage current, AC current and DC resistance.
Mmejọ ihe mkpuchi sistemu DC, mmejọ DC na ike ike AC bụ mmejọ nke na-adịkarị mfe ime ma na-emerụ sistemu ike, na-etinyekwa ọrụ nkịtị nke sistemu ike.
GDCR3000B Earth Resistance/ Ala Resistivity Tester bụ ihe pụrụ iche emere maka ịlele nguzogide ụwa, mgbochi ala, voltaji ụwa na voltaji AC.A nakweere teknụzụ nhazi dijitalụ na micro kachasị ọhụrụ, iji tụọ nguzogide ụwa site na 4-pole, 3-pole ma ọ bụ 2-pole.
GDDT-10U Earth Continuity Resistance Tester bụ ngwa nnwale akpaka na obere ibu.A na-etinye ya na nleba uru nguzogide nbibi n'etiti eriri na-ejikọta ụwa nke ngwa eletriki substation.
A na-eji ya n'ọtụtụ ebe na ike eletriki, nkwukọrịta, meteorology, ubi mmanụ, ihe owuwu, nchekwa ọkụ, akụrụngwa eletriki ụlọ ọrụ na nha nguzogide ala ndị ọzọ.
GDWR-5A Earth Resistance Tester bụ ngwa nnwale dị elu nke ejiri rụọ ọrụ n'akụkụ dị iche iche dị ka substations maka ịnwale nguzogide ala na paramita ndị metụtara ya.Ngwá ọrụ ahụ nwere njirimara nke obere olu, ịdị arọ dị arọ, ibu dị mma, ọrụ mgbochi mgbochi siri ike na oke ziri ezi.