The Stanley SHA24711 Secure Code was a 3-Button Visor Garage Door Opener Remote Control, in its replacement you can use this Liftmaster 380UT remote control.

This compatible remote works same as the Stanley 24711, 49541, 590901, and TR300. Works with all Stanley Secure Code Garage Door Openers. It can operate up to two separate garage door openers.

The remote compatible to the 24711 Stanley compatible remote is directly compatible with the following models of Stanley remote controls: 1698, 3049, 3353, 49438, 49439, 49477, 49476, 49541, 49663, 5901-01, 5902, 5908, 5909, 102-899, 370-3352, TR300

Will not work on Stanley devices that use code switches.

Features:
-Includes Two 3V lithium CR2016 batteries
-Frequency: 310 MHz
-Each button can be programmed to control a different door
-Dimensions: 3.05 x 2.00 x 0.05 inches 
-Includes visor clip and programming instructions

PROGRAMMING MANUAL