Gardner Bender's GVD-3504 Circuit Alert non-contact voltage detector quickly and accurately identifies AC voltage presence of 50-600V with both audible and visual indications. Ideal for on-the-job diagnostics, it provides indisputable accuracy and confidence, helping to ensure safe electrical installations.

 Built in patented safe test feature ensures tester and batteries are working properly. The unit includes a pocket-clip for secure portability. Requires one (1) AAA Battery (not included). Tester is C/ETL/UL Listed, offers a 150lb crush rating, CAT III 600V rating, and includes a 1-year manufacturer's warranty.