Transmitter Solutions 390LMPB2K3 Firefly 3-390 MHz Transmitter

The Firefly3 390LMPB2K3 Keychain Transmitter is a compact, two-button remote designed for use with 390 MHz dip switch garage door and gate receiver systems. Its small size and dual-button functionality make it suitable for controlling multiple doors or access points from a single device.

Engineered for compatibility with LiftMaster dip switch receivers, including the LiftMaster 82LM, this transmitter offers reliable performance and simple programming. It is designed for systems using 10 dip switches, making it a practical replacement or addition to existing setups.

Key Features

• 390 MHz operating frequency for dip switch systems
• Two-button design for multi-door or multi-device control
• Compact keychain-style remote for portability
• Programmable with up to 1 billion code combinations
• Compatible with LiftMaster 82LM and similar receivers
• Designed for 10-dip switch receiver configurations

Specifications

• Operating frequency: 390 MHz
• Buttons: 2
• Battery: 12V A23 (included)
• Operating temperature: -20°F to 100°F
• Dimensions: 1-1/2" x 2-1/8" x 3/8"
• Weight: 1 oz

Compatibility

• LiftMaster 82LM
• Other 390 MHz dip switch receivers with 10 switches

The Firefly3 390LMPB2K3 transmitter provides a straightforward solution for replacing or expanding control in dip switch-based systems. Its dual-button functionality and compact design make it suitable for residential and light commercial applications.