This is a fully assembled 40 amp PWM (may vary in appearance), enclosure & knob and 12 v electrical accessories ready to install as seen in picture above, especially for HHO generator systems
Includes all of the items shown for a complete hydrogen generator / HHO dry cell hookup: 50 amp meter internal shunt, 30 amp fuse holder & fuse, 30/40 amp relay w/ connector plug, 12v On/Off toggle switch
Perfect for monitoring and controlling hydrogen generator amp draw or any other 12v DC application and protecting the HHO generator from self destruction do to over amp draw. An absolute must for hydrogen production efficiency and control of amperage draw for a cooler running HHO generator. Includes All In Picture. Online instructions and support. Protects your hydrogen generator from burning up
