| Brand | Unbranded |
|---|---|
| Compatible Brand | Universal |
| Model | PHASE POLARITY TESTER |
| Type | PHASE POLARITY TESTER |
Check the listing for details. PC218 Phase Polarity Tester Audio Speaker Microphone Sound Phase Detector+Shell. Condition: New. Listed at 171.50 USD. Input impedance (Mic) : 1KOhm. - Input level (Mic) : 10mV - 1V. - 1 x Tester. - Aluminum Alloy Shell. - Input impedance (Line) : 10KOhm. - Input level (Line) : 0.5V to 50VOutput level : 0V to 1V. - Power : 9V PP3 battery (= approx 50 hours).