PWM Monitor & Controller (DIY) A do it your self kit. Comes with all these parts listed below. Analog DC Ammeter (2" dia.) inside a black box you install on your dash board. A lighted switch to turn your hydrogen cell on/off. Two control knobs to adjust the amperage and gas production. Top knob adjusts your wavelength.(throttle) Bottom knob is your frequency adjustment. ( 120 ohm to 120K ohm range)  The "W" & "F" knobs actually tell you "What the F#@&!" is going on with your ell under the hood. Comes with cable that goes to your PWM that is mounted near your cell, under your hood. Comes with the DIY MC-12 PWM and alum. box, 2 pots, relay, 2 mosfets, heatsink. 4 lead wires, terminals & 7. cond. cable. Can handle up to 30 amps. All the items in the photo. The advantaged of this monitor / controller is to see what your cell is producing & to control any amperage migration , as your cell warms or cools. Keep the amps at their sweet spot by the turn of a knob, while driving. No more burning fuses from too much amperage migration. Comes with a soldered up and tested MC-12 - PWM, now with 2 mosfets installed. It can handle up to 25 amps continuously, if you place the MC-12 in a cool spot under the hood or in front of radiator, behind your grill.  Can also be ordered all soldered up & tested just like the photo for $250

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