247 UL Voltage Tester Safety Instructions

This document provides safety instructions and technical specifications for a Wera voltage tester (model 247 UL), including nominal voltage ranges, temperature limits (−10 °C to +50 °C), and frequency ranges (50–500 Hz). It warns against use in moist or damp conditions, poor lighting, on insulated surfaces, or non-earthed AC networks, and emphasizes performing a functional test before each use.