Husky 007600 Black Knight Liquid Level Gauge where Numbers decrease as fluid level lowers indicating how many inches are left until the tank is empty. For use with oil, waste oil, diesel fuel, antifreeze and other fluids with a high flash point.
Honeywell oil pressuretrol limit controller with a range of 10-150 psi (adjustable 8-16 psi differential range), and a 1/4″ NPT female connection to siphon loop. This pressuretrol features a microswitch that makes on pressure fall. L404T pressuretrol controllers are for use on oil burner systems for pressures up to 1035 kPa or 150 psi. They feature high pressure limits and break a circuit on oil pressure rise above set point.