Tempo 24BK Irrigation Solenoid Chatterbox Test Kit includes the 24B Station Master Pro and the 200EP Tone Probe designed for any irrigation system troubleshooting. The Tempo 24BK features intuitive LEDs, solenoid activation mode, and chatter mode to rapidly open and close solenoids to help alert the user where it is located. The Tempo 200EP features non-invasive wire and cable location, accurate location even in congested cable bundles, and an adjustable volume control for more accurate identification.