The BJE 007670 Sentry Tank Alarm with Built-In 103 Decibel Siren, 2" NPTF Tank Fitting and 9-Volt Battery is ideal for use with oil, waste oil, diesel fuel, antifreeze, water and other fluids with a low flash point. This tank alarm helps to avoid costly overflows or untimely inventory shortages and has been engineered for most single and double walled above ground tanks. The 007670 is common 9-volt battery operated or can be upgradeable to AC power. The alarm sounds for up to 4-days on a fresh battery. The BJE 007670 Sentry Tank Alarm with Built-In 103 Decibel Siren, 2. Husky Corporation produces high-quality nozzles, swivels, Safe-T-Breaks and accessories for service station fuel delivery systems. For more than 60-years, Husky has been on the cutting edge of developing and manufacturing products to ensure consumer and environmental safety at the gas pump. Huskys product line features equipment for vapor recovery, conventional fueling, truck and high volume, farm and commercial and convenience store applications.