Easily Identify the Location of LAN Cable Wire Breaks

The Hioki 3665 is a handheld LAN cable tester to easily test wire map, measure cable length and identify twisted-pair cables, and is useful for verifying connections after installing connectors on cables. Optional terminators that facilitate easy identification of multiple cables make the LAN cable tester especially convenient for testing cables in working networks in the event of faults caused by open- or short-circuited cable wiring.

Key Features

  • Wire map check : Detect split pairs with wiring check
  • Cable length : Get NVP-Enhanced measurement accuracy
  • Direction check : Identify up to 21 cable destinations

Model No. (Order Code)

3665-20 English model
Note: For direction checks enabling individual wires to be identified, please purchase optional Terminators 9690-01 to -04.

Basic specifications

Accuracy guaranteed: 1 year
Measurable cable Twisted-pair cable, characteristic impedance: 100 Ω, shielded and unshielded, CAT 3, 4, 5, 5e, 6 and 6A
Compatible connectors RJ-45 plugs
Wire map test Detectable errors: open, short, reversed, transposed, split pairs and other incorrect wiring
(Wiring condition and shielding can be confirmed using the Terminator 9690)
Cable length measurement Measurable lengths: 2 m to 300 m (6.6 ft to 984 ft)
Measurement accuracy: ± 4 % rdg. ± 1 m (3.3 ft)(condition of regulation: single wire)
Display resolution: 0.1 m (0.3 ft)
Direction measurement Up to 21 cables can be identified using the supplied Terminator 9690 and optional Models 9690-01 to 9690-04
Power supply LR6 (AA) alkaline battery ×2, 1.4 VA max., Continuous use : 50 hr (at measurement interval of 1 minute)
Dimensions and mass 85 mm (3.35 in)W × 130 mm (5.12 in)H × 33 mm (1.30 in)D, 160 g (5.6 oz) (without batteries)
Included accessories Terminator 9690 ×1, Carrying case ×1, LR6 (AA) alkaline battery ×2, Instruction manual ×1

Options (5)

Included accessories (1)