Multitesters Under $20

GB Electrical GDT-3190 Multi-Tester 5 function, 19 range digital multimeter with LCD digital readout for testing AC volts to 750V, DC volts to 1000V, DC current to 10A, resistance to 20 megohms. Diode check, fused overload protection. Includes 2 safety test leads, instruction manual.

GB Electrical GMT-12A 5-Function 16-Range Analog Multitester The Gardner Bender 16-Range 5-Function Analog Multitester tests AC/DC voltage to 500 volts, DC current to 250 mA, resistance to 1 megohm, and decibels from -20 to +56dB. The multitester is diode protected and includes 2 safety test leads, a helpful instruction manual, and one AA battery. The unit is conveniently pocket-sized, so you can have it with you anytime you need it. Gardner Bender has 50 years of experience making professional electrical tools and supplies of consistently superior quality, so you can count on high-performance products at a fair price.

Digital Multimeter with Back Light LCD Display Digital Multimeter 3-1/2 digit LCD electrical multimeter with a max reading of 1999. Measures (5) ranges of DC, (2) ranges of AC voltage both to 500 V, (5) ranges of resistance to 200K ohms, DC current to 10 Amp., diode test, transistor and battery test. A pocket sized 2-7/8″ x 5-3/4″ x 1-1/2″, it comes complete with test leads and 9 volt battery. The best value for this size we have seen.