C.A.T4 Cable Avoidance Tool. The C.A.T4 is a true digital cable avoidance tool, delivering highly refined location capabilities, specifically designed to help the operator find more buried utilities. Operating modes: Avoidance Mode: Simultaneously search for and pinpoint Genny, Power and Radio signals for rapid surveying Genny mode: Detects the signals transmitted by Genny4 Power mode: Detects the electromagnetic fields generated by loaded power cables Radio mode: Detects long-range radio signals as they travel along buried cables and pipes StrikeAlert Warning: Warns of shallow buried utilities High contrast display with auto-backlight: Bargraph tidemark enables operators to quickly spot and zero-in on a buried conductor Operating temperature range: -20°C to +50°C Environmental protection: IP54 Batteries: 2 x LR20 (D) 1.5 V alkaline, Compatible with D type NiMH rechargeable batteries