Diagnose common low-voltage vehicle electrical issues with one tool. The DW833 combines a digital circuit probe with a tester for standard 4-pin and 5-pin automotive relays.
DC circuit test range: 3.5–36V
Compatible with 12V and 24V vehicle systems
Checks voltage, polarity, continuity, short circuits, leakage, and drive circuits
Tests standard 4-pin and 5-pin automotive relays
Digital voltage display, polarity indicators, and built-in LED work light
Safety: For low-voltage DC automotive systems only. Do not connect to household AC power or circuits above 36V. Confirm polarity and relay pin configuration before use. This tool does not replace a full multimeter or professional diagnosis.
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:98b42715dfa0d324]](http://marlovena.com/cdn/shop/files/01_47a6ef36-85ac-4801-be14-a7e38f4cba7a.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:533367225cdc8ff6]](http://marlovena.com/cdn/shop/files/02_7e1adfe2-a110-4a32-a65d-5fada4cf9daf.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:781980de130ea9e9]](http://marlovena.com/cdn/shop/files/03_f4476999-9046-47c2-92b2-a8c35b066a83.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:a6beabca5693883d]](http://marlovena.com/cdn/shop/files/04_ff546715-9752-407a-af78-d1729b1d9c33.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:b332c82a06ff61e2]](http://marlovena.com/cdn/shop/files/05_6d330bda-209f-4aa7-9541-480a01718c69.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:92a47a9409e08d4a]](http://marlovena.com/cdn/shop/files/06_6657a054-ab26-4be8-8b7f-e637ee44d5a8.jpg?v=1792045663&width=1946)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:98b42715dfa0d324]](http://marlovena.com/cdn/shop/files/01_47a6ef36-85ac-4801-be14-a7e38f4cba7a.jpg?v=1792045663&width=1445)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:533367225cdc8ff6]](http://marlovena.com/cdn/shop/files/02_7e1adfe2-a110-4a32-a65d-5fada4cf9daf.jpg?v=1792045663&width=1445)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:781980de130ea9e9]](http://marlovena.com/cdn/shop/files/03_f4476999-9046-47c2-92b2-a8c35b066a83.jpg?v=1792045663&width=1445)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:a6beabca5693883d]](http://marlovena.com/cdn/shop/files/04_ff546715-9752-407a-af78-d1729b1d9c33.jpg?v=1792045663&width=1445)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:b332c82a06ff61e2]](http://marlovena.com/cdn/shop/files/05_6d330bda-209f-4aa7-9541-480a01718c69.jpg?v=1792045663&width=1445)
![DW833 Automotive Circuit and Relay Tester for 12V and 24V Vehicles [YQT:ML-261015-001:92a47a9409e08d4a]](http://marlovena.com/cdn/shop/files/06_6657a054-ab26-4be8-8b7f-e637ee44d5a8.jpg?v=1792045663&width=1445)