Specification:Easily installed, low noise and durable.Strong magnetic force, no magnet left when power off.Particular wires, can work for long time under the condition of -65℃~200℃.Anti strong acid and alkali, aging resistance.Usage range:Be used with intercoms and access control systems.Can be installed onto wooden door, metal door,glass door,fireproof door.Function:Voltage :12VDC Power consumed: 3.3w Working Current: 0.53A,Temperature :-40℃~+50℃Work Life: 26,500 hours one year warrantyHolding Force: 280kgs With LED and network signal outputDimension: 235 * 45 *30MMWeight:1980g