Make sure that you are operating your appliance within the safe operating range of 110 to 130 VAC. Some appliances overheat and are permanently damaged when operated above or below the safe operating range. Easy to read digital display constantly shows outlet voltage in one volt increments. Examples of voltage sensitive appliances: Air conditioners, TV's computers, battery chargers, air compressors and power saws. Built in polarity check warns you of potential electrical shock. LED display indicates if there is reversed polarity, open neutral or open ground. Correct polarity is also indicated.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov