SimplyTEST ST-158003 Telephone Line Tester

Get reliable, field-ready testing for voice, data and video cabling with the SimplyBRANDS SimplyTEST ST-158003 telephone line tester. Designed for IT, security and surveillance installers, this VDV II Pro cable verifier turns complex troubleshooting into quick, decisive action—locating opens/shorts with TDR distance readings and confirming cable length to pinpoint faults precisely. Built-in PoE detection with voltage information protects technicians and verifies power availability to cameras, access control panels and network devices before they’re connected. The unit also provides Ethernet detection with network rate and duplex information so you can validate switch ports and link performance on-site.

The ST-158003 ships as a complete kit with dual-port and coax remote units plus the adapters needed for RJ45, RJ12 and F-type testing—ideal for mixed copper and coax security systems. Compact and easy to use, it improves on-site productivity and reduces callbacks by showing wiremap faults and complex wiring issues instantly. For reliable verification of telephone lines, network links and surveillance cabling, choose the SimplyBRANDS ST-158003. Add it to your toolkit to speed installations and simplify monitoring and maintenance tasks.

• Rapid fault identification with TDR distance-to-open/short so technicians locate breaks and shorts fast, reducing troubleshooting time
• PoE detection with voltage readout protects installers and verifies power on networked devices before deployment
• Ethernet detection with link rate and duplex info validates network performance for CCTV, access control and IT installations
• Measures cable length and verifies wiremap for copper telephone, data and video/security cabling to ensure first-time-right installs
• Complete VDV II Pro kit with remote units and adapters for testing RJ45, RJ12, coax and F-type connections in the field