Entrance guard special-purpose power source
 model: MJ - - 3390C
 performance: Exchange input: Standard 220VAC,50Hz
 direct-current output: Standard 12VDC,3A /5A                       
Supposes the NC/NO output, may control each kind of type the electricity lock, in sets prevented the electricity locks the inductance reverse electrical current electric circuit, reduces the entrance guard controller the load, in sets at the unblanking time adjusting knob, the adjustment scope 0~10 seconds;　　
Supposes opens the door the button input, may open the electricity lock directly;　　
Supposes the automatic protection function; (Non-charging circuit)    
Outward appearance size: 185mm*78mm*64mm
 model: The MJ-3390C function showed that,For locks the power line voltage to be possible to choose 12V/16V, the great efficiency pure copper high quality transformer, has the push input electrical signal input and the electricity locks the output connection, enlarges the radiator fin, the Bolivian filament line board, from restores insurance
 actual electric current 1.5A
 the weight (KG):1.34
 packing situation: Colored packing
 note: Actual electric current 1.5A
 note: The factory supply, the quality assurance, feels relieved the purchase
 transport expense: The seller does not contain the transport expense, what establishes is the product sell price, the concrete transport expense may deliver goods the address according to the customer and the product weight assist to consult, copes with by the actual price then.