FL3 TriPhase Probe · 44 mm

A three-contact aluminum insertable electrode with two blue insulating sections. This listing is the 44 mm version.

Follow the product link for current Amazon pricing and availability. How we choose →

Worth exploring for

Comparing three-contact electrodes

Compatibility & included parts

ErosTek power units connect using Deluxe 4 mm banana-plug leadwires. Three-contact operation requires the separate TriPhase adapter; the maker specifically documents ET-312B and MK-312BT phase modes.

Before you choose

Power unit, leadwires and adapter are separate. Confirm the exact configuration using the FL3 guide; a matching plug alone does not establish operating compatibility.

Source: ErosTek · Photograph from this listing · Details checked October 12, 2026. Direct manufacturer link; no affiliate commission.