Measurement & Display

These devices plug into household electrical outlets and display line voltage. Nominal AC voltage in the US is 120 volts. Variations of up to 10% are acceptable and will generally not have any adverse affect on electrical devices. Voltages outside the range of 108V-132V can damage sensitive equipment or appliances.
Plugs into standard home outlet and displays AC voltage. Display range limited to 90-150V for better resolution.
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Plugs into standard home outlet and displays AC voltage. Thru-Plug allows user to observe the voltage drop caused by an appliance plugged into the thr...
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Plugs into standard home outlet and displays AC voltage on digital LCD readout.
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Plugs into standard home outlet. Switch selects AC voltage or frequency for display on digital LCD readout.
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Plugs into standard home outlet. 3 status LEDs indicate low, normal, or high voltage. Sounds alarm when voltage goes out of safe range.
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