Transmitter Solutions Stinger 390LMD21V Garage Door Opener Visor Sized Remote Chamberlain

The Transmitter Solutions Stinger 390LMD21V Visor Remote offers secure, reliable, and easy garage access for select Chamberlain and LiftMaster 390 MHz systems. This one-button transmitter features a 9 dip switch configuration for straightforward programming and is fully compatible with LiftMaster models 61LM, 81LM, 750CB, and 850CB.

Its sleek black case with a vibrant blue button adds a modern touch, while the included visor clip keeps it conveniently stored in your vehicle. A built-in LED light confirms signal transmission and battery status, ensuring dependable performance every time you use it. Powered by a long-lasting 12V A23 battery (included), the Stinger 390LMD21V is an ideal replacement or spare remote for your system.

Product Highlights:

• Part Number: 390LMD21V2

• Alternate Part Number: SU7310LMD21V

• Frequency: 390 MHz

• Dip Switch Configuration: 9

• Compatible with Chamberlain/LiftMaster 61LM, 81LM, 750CB, 850CB

• LED indicator for signal and battery status

• Includes visor clip for convenient storage

• Battery: 12V A23 (included)

• Design: Black case with blue button