Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)

Multi-code garage entryway opener has maximum functionality with clip-on keyring, recessed design for your thumb and uses 10DIP-switch programmable security

Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
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North Shore Commercial Door NSCD-300MK1 Multi Code Keychain RemoteNorth Shore Commercial Door NSCD-300MK1 Multi Code Keychain Remote
$28.00$20.00
Item# 300MCD21K
$13.50$12.90
Availability: Usually ships the next business day
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$13.50$12.90
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Transmitter Solutions Firefly 300MCD21K Garage Door Opener Keychain Remote (New Part #300MCD21K3)
Product Description
The Firefly 300MCD21K gate and garage door opener features a convenient, easy-to-carry keychain design and has a 300 MHz frequency. The single-channel keychain remote is compatible with Linear Multi-Code 3060 and 3070 remotes. The remote is also compatible with Multi-Code receivers. Powered by a long-lasting 12V battery, the keychain remote is highly durable for its size and features an LED light to indicate sent transmissions.

Simple to program, the Firefly remote features a 10 dip switch design for enhanced security and simple programming. To program your garage door opener, locate your dip switches, which can be found in the battery compartment, and simply match the position of you remote's dip switches with the position of your receiver's switches. To ensure you Firefly 300MCD21K arrives quickly, we typically ship the device within one business day.
  • New Part Number: 300MCD21K3
  • Alternate Part Number: CCF3001B(Found on label)
  • Compatible with Linear Multi-Code 3060 and 3070 remotes
  • Compatible with Multi-Code receivers
  • Single channel
  • 10 dip switch coding
  • Compact keychain design
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COMMENT: We ordered the older model and have been pleased with the size and range of service by Patricia A 7/14/2017
COMMENT: size and price were right for this one by Edward G 7/10/2017
QUESTION: Is this firefly 300 MCD 21k compatible with MultiCode model 3089? by Bob H 12/19/2015
STAFF ANSWER: Yeas they are both compatible by Taylor M a
QUESTION: I have a craftsman 1/2 hp model number: 41ac150-1m with purple learn switch was wondering if this would work with it? by michael n 10/2/2015
STAFF ANSWER: No this will not work .What is the Model number on the back of one of the Remotes that are currently in use or that were being using on your Garage door operator ? by Matthew O a
QUESTION: IS THIS REMOTE COMPATIBLE WITH CRAFTMAN MODEL # 139.53992? by RHODALYN R 6/26/2015
STAFF ANSWER: Most likley not. Get your old remote in hand and give us a call or email us a picture of the front and back of the remote. Email is Sales@<a href="http://NorthShoreCommercialdoor.com" target="_blank">NorthShoreCommercialdoor.com</a> by Matthew O a
QUESTION: I have a Chamberlain Liftmaster 1/2 hp Receiver, Part No 41AC050-1M. It has a purple antenna and purple learn button. Which one if any of the firefly keychain remotes will work? by Kevin D 2/21/2015
STAFF ANSWER: 315LMD21V by Matthew O a
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