#1200 • ElfWorks Sound Probe Electronic Listening Device

Part of Smith Grove U.S. 158 Auction (timed auction by The Swicegood Group)

Starting at $1.00

Status: Available

Bidding closes Nov 3, 2026 9:04 PM EST

ElfWorks Sound Probe electronic listening device, serial number "EW-001836", marked "SOUND PROBE", "earphone", "probe", and "power on", with rear panel marked "charge 12V-DC" and "1/2Amp slow-blow FUSE", front toggle switch, earphone jack, DIN probe connector, circular sensor puck, and adapter.