They have a transmitter and a receiver and use active or passive methods of location
The 1/2" drive ratchet and socket set has innovative FOUR FLAT™ sides for an anti-roll and wrench-ready design
Blue indicates proximity to AC Voltage source
015% of reading ±2 counts 1000 ohm maximum load in mA source
5 mm 4-621 Cross-recess screwdriver as before
Elora Screwdriver Socket 1/2in plain slot 3200-IS 1.2x8 not_toolgroup They have a transmitter andOverview for plain slotted screws chrome plated, polished knurled holder made of ELORA Chrome Vanadium 31CrV3 1. 2208 female square according to DIN 3120 C 12,5, ISO 1174, with ball retaining groove blade made of ELORA Vanadium special steel, gunmetal finished blade according to DIN ISO 2380 1 Form B Specifications Number Length mm l1 mm d mm Weight g 3200 IS 1,2x8 62 23,0 23,0 80