1st Garage Door Openers

Genie Garage Door Openers Intellicode, OverHead Door Garage Door Openers CodeDodger

 LiftMaster Garage Door Openers, Chamberlain, Sears, Craftsman, Garage Master, Access Master

Linear DTD Garage Door Opener, MegaCode, Delta 3, Moore-O-Matic

Multi-Code Garage Door Openers Remote Controls 3089 Clicker Transmitter

Allstar Garage Door Openers, Allister, Pulsar, MVP, Challenger, GTO, All-O-Matic

Garage Door Openers from Keystone, Heddolf, Crusader, ESP Micom

Wayne Dalton Garage Door Openers, iDrive, DoorMAster, Quantum, Classic Drive

Tec-Key Garage Door Opener Remote Control Transmitters

STANLEY

MARANTEC

TriCode®

ALLISTER

RAYNOR

Garage Door Opener Remote Control Transmitters, Tec-Key 2000

OPTEX

TELECTRON

UNIVERSAL

"SOLUTIONS TO YOUR GARAGE DOOR OPENERS UPS AND DOWNS"
FOR SALES
CALL
 1-
480-247-2094
ALL ORDERS ARE
SHIPPED SAME OR
NEXT DAY!!!
VISA, MASTERCARD,
AMERICAN EXPRESS
DISCOVER and PAY PAL
HOME

CONTACT US

Garage Door Openers, Genie Garage Door Openers, Alliance, Blue Max, Genie Pro, Phantom, CodeDodger

1st Garage Door Openers, Inc. BBB Business Review

   
  Alliance  
 
Norelco  
 
Blue Max  
 
Lift-A-Door  
 
Pro Max  
 
Hercules  
 
Stealth  
 
Excelerator  
 
Intellicode  
 
Genie Pro  
 
OverDrive  
 
Python  
 
Signature  
 
Phantom  
 
Legacy  
 
Medallion  
 
CodeDodger  
 
Overhead Door  
 
Genie Shop Vacs  
Garage Door Openers, LiftMaster, Chamberlain, Sears, Craftsman, Garage Master, Access Mster

LiftMaster Authorized Online Seller

  Chamberlain
  Sears  
  Craftsman
  Garage Master
  Access Master
  Master Mechanic
  Security +  
  Estate Series
  Formula I  
  Whisper Drive
  Power Drive
  Billion Code
  TriCode®
STANLEY
  Vemco  
 
Quiet Glide  
 
SecureCode  
 
Lightmaker  
 
Innovate Home Products  
 
Whistler  
 
U-Install  
 
Popular Mechanics  
Garage Door Openers, Allstar, Allister, Pulsar, MVP, Challenger, GTO, All-O-Matic
  Allstar  
 
Allister  
 
Pulsar  
 
MVP  
 
Challenger  
 
GTO  
 
All-O-Matic  
Garage Door Openers, Linear Access, AccessPro, MegaCode, Delta 3, Moore-O-Matic
  AM/II  
 
AccessPro  
 
Moore-O-Matic  
 
MegaCode  
 
Delta 3  
Garage Door Opener Remote Control Transmitters, Tec-Key 2000
  TK1020
  TK1010
Garage Door Openers, Multi-Code, 3089, Door Opener and Gate Operator Remote Controls
  3089      4120
  4140      3060
  3070      4200
Garage Door Openers from Keystone, Heddolf, Crusader, ESP Micom
  ESP Micom  
 
Intercontinental Dynamics  
 
Over Head Door  
  Heddolf,
Crusader
Garage Door Openers, Wayne Dalton, iDrive, DoorMAster, Quantum, Classic Drive
  Classic Drive

  iDrive  

  DoorMaster
  Quantum
  prodrive

MARANTEC

  M-Line
  Q-Line

RAYNOR

  R-169 
  R-170  

TELECTRON

  R204AD-RF225
  T80G-RF225
  NFR204AD-RF433.9
  NFT80G-RF433.9
  365LM
UNIVERSAL
  Home & Business Security
ACCESSORIES
  For Home, Garage or Car
  Always be prepared!
Driveway Alert no more missed visitors or deliveries! Indoor or outdoor use.
CUSTOMER ASSISTANCE
ABOUT US
SHIPPING / RETURNS
CANCELLATION POLICY
WARRANTY INFO
FAX or CHECK ORDERING
SITE INDEX
All orders are shipped same or next day!!!
USPS Priority Mail 2-4 Business Days
VISA, Mastercard, American Express and Discover

 

Review www.1stdooropeners.com on alexa.com

Official PayPal Seal

 

 

MULTI-CODE

Model 4120 Two Channel Transmitter

Congratulations! You have just purchased a MULTI-CODE Digital transmitter, which we believe to be the finest product of its kind on the market. With little care this transmitter should provide you with many years of excellent service. Please take a moment to read the following instructions and you will find that setting your new transmitter will be quite an easy matter.

 ACCESSING THE CODE SWITCH

On the model 4120 transmitter the entire front lower half of the case is removable by inserting a small coin in the slot provided with a twisting motion. Once opened you will have access to both code switches and the battery compartment.

CODING 

Before placing your transmitter into service, we urge you to set your codes, in order not to interfere with neighboring systems, and to provide security for your own system. You will note that the model 4120 transmitter has two, ten position code switches. We strongly urge that several coding schemes be avoided: ALL ON; ALL OFF; 2,4,6,8,10, ON; 1,3,5,7,9,ON. These positions are similar to our or other manufacturer’s test positions, or are frequently used.

If you have two single channel receivers: Set your  transmitter to that the ten position switch on side A will match your receiver #1. Set the ten position switch on transmitter side B to your receiver #2.

 If you have a MULTI-CODE 3021 or 3028 two channel receiver: Set the receiver and transmitter (side A and B) code switch positions 1-9 to match. The 10th position on your transmitter code switches are used to channel selection. Channel 1 on the receiver is selected by moving the 10th position of the transmitter side A to the off (open) position. Channel 2 is selected by moving the 10th position of the transmitter side B to the on (closed) position. Once the codes have been set, check the operation and replace the lower cover.

 TRANSMITTER INSTALLATION

The transmitter is completely self contained, including battery, and can be opened while mounted in the car. It is supplied with a clip for attaching to the sun visor, if desired. If the clip is used, attach to the case by sliding it into the recess provided on the back of the transmitter until the small dimples fir into the holes in the clip.

 WARRANTY

ALL MULTI-CODE door related products carry a eighteen (18) month warranty against defects in workmanship or material. This warranty begins at the date of manufacture, for eighteen months. Linear Corporation warrantees our product only to authorized dealers and distributors and not to the end customer. If  you  have any questions about our warranty, please ask your dealer to determine the nature and scope of his warranty. Linear Corporation  does not assume, and is not responsible for, any real consequential damages from claims against the performance of our product, nor is it liable for any costs related to loss of life, property, or revenue. Further, Linear Corporation is in no way responsible for installation of our product, and will assume no costs related to reinstallation or removal. Linear Corporation’s warranty is in lieu of all other warrantees, expressed or implied.

PLEASE NOTE

Linear Corporation has devoted a great deal of time and research in order to provide the most reliable equipment possible. Certain limitations must be observed.

  1. MULTI-CODE radio components must conform with FCC Part 15 requirements. For this reason. the range and power of our radios is within specified limits.
  2. As with all manufacturers, Linear Corporation’s radios must accept all signals that they receive. This may, in rare instances, create difficulty.
  3. You should test your entire system occasionally in order to be sure that all components are working in good order.
  4. Linear Corporation’s dealers can provide you with information regarding the use of our radio controls, and can provide valuable installation and operation information, when requested.

Caution: Any changes or modification in intentional or unintentional radiators which are not expressly approved by Linear Corporation could void the user’s authority to operate this equipment. This applies to intentional and unintentional radiators certified per part 15 of the F.C.C. rules and regulations

 

LINEAR CORPORATION

2055 Corte del Nogal

Carlsbad, CA 92009