GEREE 0-100V/5A Digital DC VA Amp Volt Ammeter Voltmeter Ampere 2in1 Voltage Current Tester, Color Red Power Supply: DC 4.5-30V. Measure Voltage: DC 0-100V. Testing current: 0-5A. Display: 0.28" LED, Color Red . GEREE Amp Volt Ammeter warranty--30-Day Money Back Guarantee -- 12 Month Replacement Warranty -- Lifetime Support Guarantee