Jonard Tools TBS-200 Telephone Butt Set with High Impedance Monitoring, Analog -Professional Line Tester with Talk, Ring, & Monitor Functions, High Impedance Monitoring & ABN Clips

ESSENTIAL TELEPHONE LINE TESTING: Detects dial tone, makes and receives calls, and supports tone & pulse dialing. | HIGH IMPEDANCE MONITORING: Monitors lines without disturbing data, conversations, or signals. | CONVENIENT TEST FUNCTIONS: Easily switch between Talk, Ring, and Monitor modes directly from the handgrip. | ENHANCED SAFETY & DURABILITY: Built-in voltage protection guards against excess voltage and transient ringer signals. | SECURE & RELIABLE CONNECTION: Angled Bed-of-Nails (ABN) Clips ensure a stable and secure line connection.