Heddolf M219-1KB By Keystone One-Button Key Chain 10 On/Off Type Code Switch Gate, Garage Door Opener Remote Control Transmitter Compatible With Multi-Code And Digi-Code 300MHz 10 DIP receivers

New Style Heddolf M330-1KB replaces the older M330-1K wireless keypad can have up to 60 individual 4-digit user codes and is ideal for gate or garage door openers that require more than one entry code. Wireless radio signal for the 10 on/off code switch type radio receivers by Multi-Code, Digi-Code, Linear, Heddolf and Multi-Code compatible on the 300MHz frequency.