Detects dial tone and polarity, places and receives calls, indicates line voltage and current, and has a one-way amplified speaker for hands-free listening during testing of telephone lines
Built-in tone generator for wire identification
Caller-ID and Call Waiting Caller-ID
Monitors lines without disrupting service, remaining on hook if data is detected, and stores up to ten 23-digit numbers which can be speed-dialed via the keypad
Keypad has standard dialing keys and function keys, plus a large LCD for viewing test status

Technical Details

Size (LWH): 12.1 inches, 4.6 inches, 4 inches
Product Details
Product Dimensions: 12.1 x 4.6 x 4 inches
Shipping Weight: 1.9 pounds (View shipping rates and policies)
ASIN : B000FPF43I