Ae Series Grounding Style 1 Receptacle | Rotating Caps for Optimum and Precise Control | Spring Door; Weatherproof; Grounding Style: Shell Only; Contacts Exert Constant Pressure Along the Entire Contact Surface, Providing Electrical Continuity; Solid Brass Contacts With Beryllium Copper Springs; Insulating Blocks Provide High Degree of Dielect | This Dual-Range Non-Contact Voltage Tester Automatically Detects Low Voltage and Standard Voltage. a Bright Green Led Will Tell You the Tester Is Working and Also Functions as a Worklight. the Light Flashes Red and Two Distinct Warning Tones Sound When EFurbay Electric Supp