DAIERTEK Parasitic Drain Tester for Automotive Battery, Bypass Switch Test…

Description

[Find Hidden Battery Drain]: Connect this parasitic drain tester between the vehicle battery terminal and disconnected battery cable to measure abnormal key-off current draw. Helps diagnose overnight battery discharge caused by lights, relays, control modules, dash cameras, stereos, alarms, and other electrical accessories
[Built-In Bypass Switch]: Switch to bypass mode before connecting so initial current can flow around the multimeter, helping protect the meter from connection surges. After the vehicle’s electronic modules enter sleep mode, switch to test mode to route current through the multimeter and obtain a stable parasitic draw reading
[Maintain Continuous Power]: The automotive parasitic draw tester keeps the vehicle electrical system connected while computers and control modules shut down. This helps prevent repeated module resets and eliminates the need to disconnect and reconnect the multimeter while waiting for the vehicle to enter sleep mode
[Replaceable Fuse Protection]: Two replaceable in-line blade fuses help protect the test leads and multimeter if a higher-current accessory is accidentally left on. Covered fuse holders provide convenient access for inspection and replacement while helping shield the fuses during automotive electrical diagnostics
[Stacking Banana Plugs]: Equipped with stacking banana connectors that plug into compatible digital multimeters while accepting standard test leads for additional voltage checks during diagnosis. Digital multimeter is required and not included. Do not start the engine or operate high-current accessories while the tester is connected