Linear MDTK 318MHz Mega Code Keypad Transmitter
Compatible with all MegaCode system products
318 MHz frequency, smart button coding, no dip switches to set
Wireless keypad model
Keypad is backlight for night time operation
Has a cover to protect against the elements

Linear DTKP Delta 3 Garage Door Opener Keypad
Linear DTKP Delta 3 310MHz Keypad Transmitter : The Delta-3 DTKP Keypad Transmitter is one of Linear's series of wireless radio controls designed for use with automatic garage door and gate operators. The Delta-3 radio format provides 256 different codes.
Linear 420001 300MHz Wireless Keypad
Compatible with 300 MHz Multi-Code receivers
Backlit keys
RF frequency: 300 MHz
2.75" W x 6.25" H x 1" D
Powered by 9-volt battery

Linear AK-11 Access Key Single Door Controller Universal Digital Keyless Entry System For Gate or Door Access Control
Linear universal wired keypad (will work on ANY gate or garage door operator)
Self-contained keyless entry system ideal for airports, hospitals, warehouses,and more
Operates at 12 or 24 Volts AC or DC.
Rugged, cast aluminum enclosure for indoor or outdoor mounting on a wall or pedestal.
Up to 480 programmable input codes of one to six digits each for activating either or both relays.