The Keystone Heddolf M330-1KB is an exterior wireless keypad designed to operate Multi-Code 300 MHz gate and garage door systems. It transmits in the Multi-Code format to trigger compatible receivers, allowing users to enter a personal code for hands-free, keyless entry. Ideal for residential and light commercial applications, this replacement/upgrade keypad mounts outside the entry point and sends a radio signal to the operator when the correct code is entered, providing convenient access control without needing handheld remotes.
Engineered specifically for Multi-Code 300 MHz radio receivers from brands such as Linear/Multi-Code, the M330-1KB uses internal coding to match the receiver and is battery-powered for wire-free installation. As a single-channel wireless keypad, it is commonly used with garage door openers and automatic gate operators that accept the Multi-Code 300 MHz format; it is not intended for 318 MHz MegaCode or rolling-code systems. The weather-resistant design supports exterior mounting near gates or doors. Basic setup typically involves matching the keypad’s internal code to the receiver and setting a user PIN, following the manufacturer’s programming steps. For safety, install out of reach of moving equipment, ensure proper placement for reliable RF performance, and use only with operators equipped with required entrapment protection. Keywords: Keystone Heddolf M330-1KB, wireless exterior keypad, Multi-Code 300 MHz compatible, Linear Multi-Code gate opener keypad, garage door keypad, replacement Multi-Code keypad, residential and commercial access control.