STOCK 885A 1 Provision/ Martin/Marantec 2-button Garage Door Opener Remote Model M3-2312 tested guarantee work.Sale is for one remote from the picture only.Used like new.tested has great signal.Please see pictures for conditions . the  pictures item is actual item you will receive. New installed battery is included.Will ship fast after received payment Thank you!

M3-2312 (Alternate Spelling: M32312 )Compatible remote controls: M3-2312, M3-2314 and keypad model M13-631 Replaces discontinued remote control: ML-1312V Operates 2 Marantec 315MHz garage door openers or gates

Battery Type 1; CR2032

Frequency 315 MHz

Buttons 2: Led Light

Compatible Vehicles

Programming Instructions:

1. Using the Transmitter
All transmitters come with batteries already installed. 
- To open or close garage door, press and hold the button (Mini 
and Micro transmitters have indicator lights). When garage 
door begins to move release button.
- To stop the garage door during travel, press and hold button 
until door stops, then release button.
- To continue the garage door travel after stopping it, press and 
hold the button. Press button once, the door will travel in the 
opposite direction

2. Battery Replacement
 
Open the transmitter by using small coin. 
The installation of the battery for 
Mini and Micro is the same. 
When replacing batteries follow the steps below:
Close the transmitter.  
Note: Replace batteries with same type only
.Insert a 3V battery (type CR2032) 

3. Multiple Transmitters 

Each transmitter comes factory programmed with random 
codes. 2-channel transmitters have 2 different random codes, 
one per button, 3-channel transmitters have 3 different random 
codes and 4-channel transmitters have 4 different random 
codes, one per button. Transmitters that are purchased 
separately as accessories have random codes that must be 
changed in order to match the code of the "active" transmitter, 
which you are already using. Below are instructions for 
transferring an active code from a button on one transmitter to a 
button of your choice on another transmitter.  
Connect the transmitter with active code to the new 
transmitter using the programming connector (fig. 3A).
Press and hold the selected channel button on the transmitter 
with the active code. The light in the transmitter 
illuminates.
Press and hold the respective channel button on the new 
transmitter. The light in the transmitter initially starts 
blinking and then illuminates continuously after 1-2 sec. Code 
transfer is completed.
Programming connector can be removed and both transmitters can now be used to
 operate the same door.
Note: For multi-button transmitters, be sure to carry out this 
procedure for all the buttons you desire to use.

4. Changing the Code on Transmitters 

The transmitter factory preset code can be changes as follows:
Connect the programming connector into the lateral socket of 
the transmitter to change the code.
Short one of the outer pins of the programming connector with 
the middle pin.
Press and hold the respective channel button. The light will blink 
rapidly for approx. 5 sec. Release the button after the light 
illuminates continuously. Then remove the programming 
connector. 
Note: For multi-button transmitters, be sure to carry out this 
procedure for all the buttons you desire to use.