Country of Origin China
Brand Unbranded
Output source impedance 1KOhm
Power 9V PP3 battery (= approx 50 hours)
Power drain 10mA

Check the listing for details. PC218 Phase Polarity Tester Checker Detector Speaker Microphone Sound Testing. Condition: New, Made in China. Listed at 196.40 USD. Which is the necessary testing tools of sound engineering installation and commissioning. and can be used for the phase accuracy test of any Sound System. The system consists of two hand-held units, PC218-A pulse can produce their own sound signal and then output the sound signal of 1Hz 1 second through XLR for PC218-B to testing.

$98.20
$196.40