The Pro48K TechTool Kit is a complete portable, low cost, battery operated irrigation system diagnostic kit. The Pro48K combines several testers into one, creating a powerful tool that any technician can afford. The Pro48 TechTool incorporates a solenoid activator to hold valves open; a chatterer to locate lost valves; a continuity checker to identify cut or shorted wires or solenoids; and a 24 VAC detector to ensure proper clock power output. Together with the Pro210 Probe, the Pro48 can transmit a tracing tone and identify wires using traditional tone/probe methods. Operation is simple as LEDs indicate tests and conditions.