AC Circuit Tester

AC outlet circuit tester detects faulty wiring in 3-wire receptacles. Easy to read red/amber lights for use on any standard 3-wire AC outlet. More PRIME PRODUCTS

100 Amp Battery Load Tester

Accurately test your battery within 30 seconds! Testmaster More THE NOCO COMPANY

AC Line Voltage Tester

Plugs into any 120V wall receptacle and provides a continuous, accurate reading of the AC line voltage. More CAMCO MANUF. CO.

Digital Voltage Meter

Plugs into the cigarette lighter to determine vehicle's battery condition. Easy to read, adjustable digital display shows the exact voltage of the battery in 1/10 volt. Low sign appears when voltage drops below 7 volts. LED read-out is backlit. Reads... More PRIME PRODUCTS

Line Voltage Monitor

Get instant accurate readings (+/- 2%) from 100-135 AC line voltage. Plugs into wall outlet. More PRIME PRODUCTS

Line Voltage Tester

Simply plug into any standard wall outlet and get an instant readout of your AC line voltage. Appliances may be plugged into the thru-plug, allowing quick problem indication if there is a sustained voltage drop of more than 5 volts. Range: 0-150 VAC. More PRIME TECHNOLOGY, INC.

Digital Line Voltage/Frequency Monitor

Switch selectable voltage and frequency monitor provides continuous high accuracy readings of both voltage and frequency of the supplied power. Easy to read digital display provides critical information at a glance. Plugs into any standard wall outle... More PRIME TECHNOLOGY, INC.

Digital Voltage Monitor

Protect your RV's major appliances from potential shock hazards due to improper polarity and ground wiring with the most advanced power source monitor and portable diagnostics tool on the market! Constantly monitors line RMS voltage and checks freque... More TECHNOLOGY RESEARCH CORP