Transmitter Solutions 310LID21K3 Remote Linear Compatible - 10 Pack

310 MHz Keychain Remote for Linear Dip Switch Systems

The Transmitter Solutions Firefly3 310LID21K3 is a compact, 1-button keychain-style wireless transmitter operating at 310 MHz. Designed for 8-dip switch receivers, this remote is fully compatible with Linear® Mini-T Ladybug systems and other 310 MHz dip switch-based controls. Its small size, 256 unique code combinations, and rugged design make it ideal for secure gate or garage door applications where fixed code operation is required.

Key Features

• Operates at 310 MHz with 8-position dip switch encoding
• Compatible with Linear® Mini-T Ladybug and all 310 MHz dip switch receivers
• Compact keychain-style design with white button
• Fixed code transmission with 256 possible code combinations
• Includes pre-installed 12V A23 battery
• Rated for outdoor temperatures from -20°F to 85°F
• Two-year manufacturer warranty

Technical Specifications

• Model: 310LID21K3
• Frequency: 310 MHz
• Encoding Type: 8 dip switches
• Number of Buttons: 1
• Quantity: 10 remotes
• Battery: 12V A23 (included)
• Combinations: 256
• Operating Temperature: -20°F to 85°F
• Dimensions: 1.5 in x 2.125 in x 0.375 in
• Weight: 1 oz
• FCC ID: SUCCF310B3
• Case Color: Black with white button
• Mounting Style: Keychain
• Also known as: TRAFIR310LID21K-3

Conclusion

The Firefly3 310LID21K3 remote is a reliable, compact solution for fixed-code gate and door access. With compatibility across all 310 MHz 8-dip switch systems and Linear® Mini-T models, it delivers dependable performance in a lightweight form factor.