SimplyTEST ST-158004 Telephone Line Tester

Get accurate, on-site verification and faster repairs with the SimplyBRANDS SimplyTEST ST-158004 telephone line tester. Designed for technicians and installers, this VDV II network tester quickly locates wiring faults and measures cable length using integrated TDR (Time Domain Reflectometry), helping you minimize downtime on voice, data and CCTV/surveillance runs. The ST-158004 identifies wiring errors and live services — including PoE and PoE++ — so you can safely verify power-over-Ethernet before connecting equipment.

Equipped with RJ-11, RJ-12, RJ-45 and COAX ports plus dual remote units and a full set of adapters and patch leads, the unit maps complex cabling faults instantly and supports telephone line, network and security monitoring deployments. Its compact carry case and clear multi-language guide make it ideal for field use across commercial, residential and industrial environments. Improve troubleshooting efficiency for surveillance, security and networking installations — add the SimplyTEST ST-158004 to your toolkit today.

• Rapid fault location with TDR distance-to-fault and cable length measurement to reduce troubleshooting time
• Instant wiring ID and wiremap diagnostics for RJ-11/RJ-12/RJ-45 and COAX installations
• Detects live services including PoE/PoE++ to prevent accidental interruptions during testing
• Includes dual-port and coax remote units plus adapters for versatile on-site testing of telephone, data and surveillance cabling
• Rugged carry case and multi-language guide for faster deployment across commercial and residential projects