Transmitter Solutions 390LMD21K3 Remote Control

The Firefly3 transmitter is a key-chain remote, operating at 390 MHz. It is compatible with all dip switch receivers operating at a 390 frequency with 9-dip switches, including all Liftmaster® dip switch digital receivers.

This transmitter is compatible with the Liftmaster® 61LM (shown in the second picture).

Features

Keychain style remote
Litmaster® 61LM
9 Dip Switches
Operating frequency : 390 MHz
Number of buttons : 1
Battery : 1 ea. 12V A23
Operating temperature : -20°F - 85°F
Overall dimensions : 1-1/2 x 2-1/8 x 3/8 inch

Customer Reviews

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Based on 1 reviews 5.0/

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Marcy McCurdy M. M. Marcy M.
19-01-2023

Liftmaster remote

Works perfect! Thank you so much!

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Enyero T-Bird E. T. Enyero T. 14-11-2022

Up to what model year would this remote work ???

Answers (1)

14-11-2022

Thank you for reaching out. If you are currently using 61LM remote controls, you should have no problem at all. If you are not, we would need to confirm the model number of your radio receiver you are currently using. Feel free to call or better yet, email us pictures of your unit and we'll guide you further.

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Transmitter Solutions 390LMD21K3 Remote Control

The Firefly3 transmitter is a key-chain remote, operating at 390 MHz. It is compatible with all dip switch receivers operating at a 390 frequency with 9-dip switches, including all Liftmaster® dip switch digital receivers.

This transmitter is compatible with the Liftmaster® 61LM (shown in the second picture).

Features

Keychain style remote
Litmaster® 61LM
9 Dip Switches
Operating frequency : 390 MHz
Number of buttons : 1
Battery : 1 ea. 12V A23
Operating temperature : -20°F - 85°F
Overall dimensions : 1-1/2 x 2-1/8 x 3/8 inch