* Red/black * Senses materials in walls * Will detect copper pipes (up to 1"/25mm deep) * Will detect iron up to 2"/51mm deep * Will detect wood studs upto 34;" (19mm) deep * Continuousley detects hot unshielded AC wires * Finds both wood & metal studs * Metal scan for finding pipes, nails, rebar & other hidden metals * Constant hot AC detection for safety * LED Arrow display for clarity