... 7AHPower supply: battery power supply, 220V power supply, safe and reliable. The standby current: < 2.2MAA charging time: less ... blocked down automatically,Low pressure alarm, overcurrent alarm function; and general waterproof function, simple installation, low failure rateX type ... the M8mm expansion screws, onto the parking lock, and then tighten the nut, installed, will be around health clean;In ...