SERIES 4
The HD-4 has all of the most needed features in a low cost craft-grade design. Extremely rugged and reliable, the HD-4 model is THE value leader in basic craft-quality testsets.

The HD-4 model is Craft Quality and provides these standard features:

• High Impedance "Safe For Data" Monitor > 120K Ohms
• UL Listed for Safety
• Meets 12' and 20' drop tests
• Overvoltage/Overcurrent Protection
• Built-in ringer to indicate incoming calls
• Last Number Redial - 23 digits - T/P 
• DTMF (tone) and Rotary (pulse) Dialing
• LEDs for polarity indication
• Microphone Mute for noisy locations
• Hook Flash - PBX pause
• Large rust-proof belt clip
• Industry standard 5 ft. craft-quality cordset - bent nose clips, BON, Spike 
• Modular cordset connection with patented strain relief
• Enclosure is impact-resistant to withstand craft use
• Rubber gaskets for rain/humidity protection
• Ergonomic shape allows one-hand operation
• Non-slip Shoulder Pad
• Full 18 month warranty period
• Made in France