LEVITON 8490-R Receptacle 4-in-1 surge protective 20A 125V red

Indicator light-Standard on all Leviton surge protection receptacles, the indicator light assures you that your critical equipment is protected. Audible alarm-For locations where the outlet is hidden or for an extra measure of safety, audible alarms alert you when the receptacle needs to be replaced. Isolated ground (IG), When used with a direct path to an isolated building ground, these receptacles reduce electromagnetic noise that could interfere with the performance of sensitive equipment.