Check the listing for details. Heddolf M330 60 User Code Wireless Gate Garage Door Keypad Multi-Code Compatible. Color: Black, Condition: New. Listed at 53.95 USD. 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.Product Description: The Heddolf M330-1BA wireless digital entry keypad can be used with the binary code switch models of radio receivers made by Multi-Code, Digi-Code, Linear and other Multi-Code compatible that operate on the 300MHz. This keypad can have up to 60 4-digit user codes and one master 4-digit programming code and each code can be individually removed and changed as needed as the code are stored as a 2-digit memory location (01-60) and then the 4-digit user code. The master programming code can also be changed if needed without affecting the user codes and if needed the keypad can be reset to the factory default erasing all codes. A Keypad back illumination feature comes on when any key is pressed and then the 4-digit user code can be entered makes using the keypad in low light conditions easier. This back illumination stays on for five seconds between keystrokes and goes out within 2 seconds of a valid code being entered to help conserve battery consumption. As a security feature the keypad will lockout for 40 seconds if 4 incorrect code attempts are made so even if a correct code is entered during the lockout time it would not send the signal to activate the opener. Featuring a stainless-steel faceplate and weather resistant enclosure the keypad can be mounted to a wall or pedestal as needed and can also be hard wired to a 12-volt gate opener eliminating the need for batteries. The radio signal duration can be adjusted from 1 to 4 seconds using the internal jumper and the front panel multi-color LED indicates the different statuses of key pressed, correct code entered, battery low, in program mode and program error.This keypad is only available for the 300MHz frequency versions of radio receivers.Compatible with Multi-Code, Digi-Code, Linear, Heddolf 10 code switch 300MHz receivers, Apollo 926 using Multi-Code radio receiver.Product Features: 60 user code capacity Illuminated keys for easy nighttime viewing Programming of user codes and master code done directly from keypad Low battery LED indicator Memory retained during low or while changing batteries Can be hard wired to 12-volt gate openers One-Year manufactures warrantyProduct Specifications: Power: 6 volts using four 1.5V AA alkaline batteries (not included) Frequency: 300MHz Radio Codes: 1,024 (set by 10 dip code switches) Entry Codes: Up to 60 4-digit user PIN codes Dimensions: 6.1/8 x 3 1/2 and 2 1/8 at top, 1 9/16 at bottom depthsIf you are not positive that this is the correct item for you, please email us. We are more than happy to assist you in determining the correct item for your application. If you need to contact us for assistance please include the Make and Model number of the garage door opener, radio receiver or transmitter. The more information you include for us, the easier it is for us to assist you in determining the correct item. We would rather have you contact us than end up with the wrong item and have to return it.