HIOKI FT6031-50 Earth Tester | 2-pole/3-pole method, 0–2000 Ω, automatic measurement with MEASURE key, IP65/IP67, CAT IV 100 V, optional Z3210 Bluetooth

HIOKI FT6031-50 Earth Tester: IP65/IP67, One-Key Automatic Measurement

Overview

The FT6031-50 supports both the 2-pole and 3-pole methods. Pressing the MEASURE key automatically checks the earth voltage and auxiliary earth resistance in sequence, then measures earth resistance with automatic ranging. Rated IP65/IP67 for dust and water protection, it suits outdoor grounding work. The FT6031-50 is the successor to the discontinued FT6031-03.

Key Specifications

• Ranges: 20 Ω (±1.5% rdg. ±8 dgt.), 200 Ω, 2000 Ω (±1.5% rdg. ±4 dgt.); accuracy guaranteed for 1 year.
• Safety and protection: CAT IV 100 V / CAT III 150 V / CAT II 300 V; IP65/IP67.
• Wireless: Z3210 is optional; the FT6031-90 is the kit including the Z3210.
• Power and weight: LR6 ×4, approx. 500 measurements with the 3-pole method; approx. 570 g, 185 × 111 × 44 mm.

Applications

• Earth resistance measurement and acceptance testing in grounding work for buildings and power equipment.

Specifications per the HIOKI product page (retrieved 2026-10-20).