This is the Tejera Microsystems SmartSmoker PRO Onboard R/C Electric Smoke Fuel Pump Kit. FEATURES: New SmartSmoker Pro allows transmitter adjustable rates and Smart Prime features like the original SmartSmoker, but users can now select the power source for the oil pump circuitry Oil pump can be powered from an external "smoke only" battery pack like previous versions or can draw power from the receiver connector with used in Giant Scale airplanes with power distrubution systems Especially suited for systems using large separate batteries for receiver and servo connections New smooth control logic and new status LED to indicate SmartPrime and max flow for easy setup Simple installation requires no complicated plumbing, soldering or wiring, no pressurized tanks, no crankcase pressure Universal connector fits all Futaba, Hitec, Airtronics Z and JR radio systems User serviceable gear driven pump Installs or removes in minutes 180 day limited warranty INCLUDES: One self-contained pump unit with battery and receiver connectors pre-installed, clear yellow tubing, One check valve, one t-fitting REQUIRES: 4 or 5 cell NiCad/NiMh or 2s LiFe A123 Smoke oil (MDWP1000) Smoke fluid tank Smoke muffler specifically designed for use with the modeler"s engine (make and model are specific) lmm 5.2.11 ir/jxs updt jxs 05/24/11