Product description:
Rolling code technology. 315Mhz-433MHz selectable.
Remote control range:100M
Application: wireless key-entry , door lock , window , home security and industrial machines. switches, Car key fob and so on.
• Rolling Code Transmitter/Receiver Set, generates new code each time you push the button, these codes never to be repeated.
• Beat "code grabber", nobody can steal your code again.
• 99.99% works with most brands of garage door openers.
• Ideal replacement for older or obsolete models.
• Electronic scanners "code grabber" cannot duplicate the operating code.
• Offers home security at affordable cost.
• Easy to install & program.
• Works as a secondary receiver (both original existing receiver and 838 receiver will work simultaneously)
• Two button transmitter operates two or more garage doors.
• Additional receiver sold separately.
• 12V alkaline battery included.
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