Megger DET3 Contractor Series 3-Terminal Earth/Ground Resistance Testers

• Measurements: Ground resistance (0.01-2000 Ω, 2P/3P: ±2% ± 3 digits, ART: ±5% ± 3 digits), earth voltage (0-100 V, ±2% ± 2 V), ground current (0.5 mA-19.9 A, ±5% ± 3 digits, DET3TC with MCC1010 clamp). 

• Functionality: 2/3-point testing, ART (Attached Rod Technique, DET3TC), user-selectable 25/50 V test voltage, 128 Hz test frequency, noise rejection (40 V pk-pk), automatic C/P spike and noise checks, voltmeter, LCD (digital/analog options). 

• Design: 1 kg, CAT IV 100 V, IP54, operates -15 °C to 55 °C, 8x AA batteries (700 tests), 203 x 148 x 78 mm, rugged polypropylene case. 

• User-Friendly: One-button operation, large selector switch, clear LCD, battery level indicator, automatic error detection, complete kit for immediate testing. 

• Complete Kit: DET3TD or DET3TC tester, 3-wire lead set (15 m red, 10 m yellow, 4 m green), 2x ground stakes (200 mm), hard carry case, instruction manual CD, calibration certificate, one-year warranty. 

The Megger DET3 Contractor Series (DET3TD, DET3TC) 3-Terminal Earth/Ground Resistance Testers measure ground resistance (0.01-2000 Ω, ±2-5% ± 3 digits), earth voltage (0-100 V, ±2%), and ground current (0.5 mA-19.9 A, DET3TC with optional MCC1010 clamp).

Supporting 2/3-point testing and ART (DET3TC) for testing without disconnecting utility grounds, they offer 25/50 V test voltages, 128 Hz frequency, and 40 V noise rejection. Rated CAT IV 100 V and IP54, the 1 kg testers operate in -15 °C to 55 °C, powered by 8x AA batteries (700 tests), with a compact 203 x 148 x 78 mm design.

Compliant with EN 61010-1 and EN 61557, they feature a user-friendly LCD, one-button operation, and automatic error checks. Ideal for grounding systems, lightning protection, and utility poles, the kit includes the tester, leads, stakes, hard carry case, manual CD, calibration certificate, and a one-year warranty.