GUARANTEED SAFETY: Designed to IEC EN 61243-3:2014 standards to confirm absence of voltage even with depleted batteries PROFESSIONAL PROTECTION: CAT IV 600V and CAT III 690V safety ratings provide maximum protection in all electrical environments MULTI-SENSORY INDICATION: Four ways to detect voltage (LED, LCD, sound, and vibration) ensure you never miss dangerous voltage CLEAR VISUAL INDICATORS: Bright LED lights and indicators provide unmistakable voltage presence notification even in poor lighting DURABLE CONSTRUCTION: Strong, reliable design with quality test leads built for daily professional use