BJ Enterprises 007 Tank Monitor is designed to indicate a low or high tank level with both audible and visual alarms. The low-voltage, supervised 007 tank monitoring system is designed for use on most single- and double-walled above-ground tanks, primarily used to help prevent costly and unnecessary tank overflows/shortages, though it is also ideal for monitoring interstitial space. When the unit's preset float is activated to an alarm condition, a 103-decibel siren will sound, and a strobe light will flash. The easy-to-install 007 is engineered to control up to 10 solenoid valves, as well as additional strobes and sirens, with a 12-Volt DC transformer. This unit also features a 10' lead wire and a control panel that is mounted indoors, but this model DOES NOT include the remote tank sensor that normally comes with 007 units.