... or magnetic9, Noise : < =56 dB10, Reduce ratio : 30110, Working temperature: >-45 ºC; >+65 ºC11, Built-in control logic board12, 433MHZ ... no distance limitation within GSM Network area)15, Wire control with manual switch16, Electronic soft-start17, Auto-reverse function , and ... motor23, Time delay closed is adjustable24, Can be connected with alarm and sensor and button switch and loop detector25, ...