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Conductor tester apparatusConductor tester apparatus ,This is our new creative series which used for junior middle school Innovation experimental ! new beautiful design and very eash to be used.
The experiment is mainly composed of terminal blocks, IC circuit, mA meter, LED indicator light, buzzer, power switch, power LED, special PVC boxes and other components (as shown above).
Power supply, LED lights, milliammeter, music IC buzzer constitute a loop through the IC circuit, due to, but because the circuit in wiring between Block off, so the whole circuit is in the off state; circuit no current, LED, bee ming, etc. does not work.
Will test the cable connected to the wiring base with alligator clips at both ends of the contact object to be measured; when the object to be measured is a conductor, the entire circuit is closed, LED, buzzer, etc., mA table shows the size of the current loop.
This device can also detect simple object to be measured resistance size, the smaller the resistance, the brighter the light, the greater the current reading, the buzzer beeps louder.
Overall product specification: 175mm × 135mm × 70mm; box with PVC molding.
Power input 12VAC/DC2000mA; standard interface is located back of the box; Green power button switch, the red LED power indicator; Green LED, 300mA mA meter, buzzer; boxes built with IC circuit chip; red and black standard terminal; special red and black test leads.
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