KEWTECH KT1700: Reliable Single Pole Voltage Indicator – Accurately detects hazardous voltage and phase from 50–600 V AC. MEETS SAFETY STANDARDS: Complies with BS EN 61010-1:2010, designed for professional use with CAT IV 300V overvoltage protection. ENHANCED VISIBILITY: Flashing LED and Audible Warning alerts clearly when voltage greater than 50 V AC is detected. BUILT TO LAST: IP54 Dust and Water Resistant, durable construction ensures reliable use in demanding environments. USER READY: Works through PPE with Long Battery Life, functional even through full protective equipment and powered by 2 x AAA batteries.