12v 24v Battery Tester Relay Analyzer Alternator Checker Vehicle Cranking Charging System Diagnosti

Features: This car automotive-relay tester is a must-have tool for any car owner or mechanic, with its ability to detect 4 pin\/5pin automotive-relays and work with 12\/24v .need 2 capacity 18650 mode-batteries(Not included), this portable test equipment can be used continuously without the need for an external power supply, making it perfect for on-the-go repairs.Suitable for-drivers, mechanics-, and anyone who wants to take control of their car maintenance, this automotive-relay tester is easy to use, providing accurate measurements and quick-results.Whether you're in-the garage or on the road, this circuit tester is small and easy to carry, making it Perfect-for being placed in briefcases or satchels for quick-access to diagnose any car-issues.of high-quality material, this car tester is durable and reliable, ensuring that you'll have a useful and long-lasting-tool in your- for all of your automotive-needs.Specifications: Working temperature: -20~+50Battery: 2x18650 batteries (Not included)Material: plasticcolour: BlackPackage Contents: 1 x Alternator CheckerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.