Overview Reviews Product Description Heavy-duty circuit tester for checking low voltage up to 12 volts. By depressing the red button the tester becomes a jumper for powering electrical components or a ground. The probe, handle, cord and clamp are reinforced for durability. Comes with a strain relief spring on the cord. Lisle Tools Catalog Product Videos Custom Field Harmonization code HTS #9030339090 Manufacturing country US Product Reviews Write a Review Write a Review × Lisle 12V Heavy Duty Circuit Tester / Jumper 32900 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *