Telephone Test Sets: Tester Type - Telephone/Communication; Application - Circuit Troubleshoot and Verification; Detects - High Line Voltages, Power; Off-hook Resistance - max. - 600 Ohm; Memory Dialing - 10 Location Speed Dial, 23-digit; Parts Included - Cord set with ABN clips; Batteries - 1 9V; Additional Information - Data Lockout and Lockout Override, and a Large LCD, Caller-ID and Call Waiting Caller-ID; Manufacturer Series - TS 25D
Additional Info: Data Lockout and Lockout Override, and a Large LCD, Caller-ID and Call Waiting Caller-ID