EP3869 Voltage Tester, AC 100-500V, 140mm Neon Indicator, Flat-Blade Probe
This voltage tester is designed for electricians, maintenance technicians, and DIY users who need a quick and reliable way to check for live voltage in sockets, switches, and wiring. The neon indicator glows when AC voltage is present, providing clear visual confirmation without adjusting settings or reading a display. Its slim 140mm body and integrated flat-blade tip allow direct testing in terminal blocks and outlet slots.
Specifications
Transparent PC,
Chrome-Plated Cap
Heat-Treated,
38-42 HRC, Nickel-Plated
Product Description
Neon Indicator for Clear Voltage Detection: The neon lamp provides a bright, easily visible glow when AC voltage between 100V and 500V is present. This simple visual signal allows users to quickly verify live circuits in outlets, switches, and fuses without the need for batteries or calibration.
Durable 70# Carbon Steel Probe: The flat-blade tip is made from 70# carbon steel, heat-treated to 38-42 HRC, and nickel-plated for corrosion resistance. The 3mm diameter probe fits into standard outlet slots and terminal blocks, while the hardened steel resists wear from repeated use.
Compact and Lightweight Design: At 140mm overall length and only 18g, this tester fits easily in a shirt pocket or tool pouch. The slim profile allows access to tight electrical boxes and behind equipment where larger testers may not reach.
Ideal for Electrical Troubleshooting and Installation: This voltage tester is suitable for electricians, maintenance personnel, and homeowners who need to confirm power presence before working on circuits. It is commonly used for checking outlets, switches, fuses, and wiring during installation, repair, or troubleshooting.




