Specification :

Audio Impedance Tester
Model : 1506IM

SPECIFICATIONS
Measurement System constant current inverter with 1KHz approx. 2mA
Measuring Ranges 20 Ohm/ 200 Ohm/ 2K Ohm
Accuracy + / - 2.5% of full scale
Power Source 1.5V SUM-3 ( AA) x 6
Dimensions 163( L) x 100( W) x 50( D) mm
Weight Approx.420g ( battery included)
Safety Standard IEC 1010 CAT II 100V
Accessories Test leads, heavy-duty case, instruction manual
FEATURES
High quality Taut Band movement
Battery-powered audio impedance tester
Timer function for hand free use
Battery indicator
  The tester measure with a frequency of 1KHz
Measure speaker' s impedance
Measure speaker lines ( connected to load)
Help to calculate and check audio power systems
Ideal for public adress installation and maintenance
  Measure transformer impedances