Combining four tools in one, the phd Telecommunicator integrates the features of a butt set, hands-free monitor, signal-level meter, and digital multimeter. The lcd shows tone and pulse digits, including on/off time, decibel level for tones, pulses per second, and interdigit time. The unit monitors the line status (on or off hook), zero-volt intervals, and non-dtmf voice band tones. The multimeter measures AC and DC voltage to 199.9V and DC current to 199.9 milliamperes.
Combining four tools in one, the phd Telecommunicator integrates the features of a butt set, hands-free monitor, signal-level meter, and digital multimeter. The lcd shows tone and pulse digits, including on/off time, decibel level for tones, pulses per second, and interdigit time. The unit monitors the line status (on or off hook), zero-volt intervals, and non-dtmf voice band tones. The multimeter measures AC and DC voltage to 199.9V and DC current to 199.9 milliamperes.
