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TS44 PRO Test Set
| Electrical | |
| Current Range (Off-Hook) | 10 mA to 100 mA |
| DC Resistance | |
| Off-Hook On-Hook |
150�Ω nominal >3 MΩ |
| AC Impedance | |
| Off-Hook On-Hook |
600 Ω nominal; 300 Hz to 3400 Hz >120 kΩ; 300 Hz to 3400 Hz |
| Rotary Dial Output | |
| Pulsing Rate Break/Make Ratio Interdigit Interval Resistance During Break |
10 pps �1 pps 60/40 >300 ms >100 kΩ |
| DTMF Output | |
| Tone Frequency Error Tone Level High versus Low Tone Difference |
�1.5 % maximum -3 dBm combined (typical) 2 dB � 2 dB |
| Memory Dialing | |
| Memory Capacity | 10 speed dial memories plus one last number redial |
| Memory | |
| Digit Capacity PBX Pause Duration Hook Flash Duration Automatic Speaker Shut Off Duration |
23 digits per memory User programmable; default of 4 seconds User programmable; default of 600 ms User programmable; default of 2 minutes |
| Battery | 9 V alkaline or lithium battery |
| Physical | |
| Measurement | 10 in x 3.75 in x 4.25 in (254 mm x 96 mm x 107 mm) |
| Weight | Less than 1.5 pounds (0.68 kg) with one belt clip |
| Water Resistance | Rain and moisture resistant |
| Temperature Range Operating Storage |
29 �F to 140 �F (-34 �C to 60 �C) -40 �F to 150 �F (-40�C to 66 �C) |
| Altitude | �10,000 ft (3,000 m) max |
| Drop | Two 20-foot drops and twelve 12-foot drops onto concrete. |