Seal. Secure. Operate.
The Firefly 433TSD21K Keychain Remote is a compact, single-button transmitter designed for use with 433 MHz Transmitter Solutions receivers. Built for both convenience and security, this remote features 10 dip switch coding for quick programming and reliable performance.
With its portable keychain design, the Firefly 433TSD21K remote makes it easy to access your garage or gate system anytime. Lightweight yet durable, it’s a dependable replacement or additional remote for residential and commercial applications.
Key Features
Genuine Firefly 433TSD21K keychain remote
Compatible with 433 MHz Transmitter Solutions receivers
One-button operation for simple use
10 dip switch coding for secure programming
Compact keychain design for portability
Works with garage door and gate access systems
Transmitter Solutions
Transmitter Solutions