Circuit tester

Digital circuit tester : A circuit tester can verify that the wiring has been installed properly.
tester circuit test range：3-32V 
open short circuit tester material：cellulose acetate fiber 
circuit resistance tester: PU power cable length：3.6m 
batteries circuit tester: Probe：304 stainless steel 
tester circuit is with spring relief cord and alligator clip 
LCD+LED digital display 
LED Indication: Green (-) / Red (+)
Electrical testers are useful to check for voltage, continuity, shorted or open circuits, and improper wiring.