APOLLO 4 Button Remote Code Hopping 403Mhz

APOLLO / Sherlo 4-Button Remote ? Code-Hopping 403?MHz Benefits & Advantages Secure Code-Hopping Encryption Rolling/code-hopping technology prevents replay and cloning attacks ? more secure than fixed-code transmitters for gates and garages. Reliable 403?MHz Frequency Operates around 403.55 MHz ? common in local automation systems for strong compatibility with many 403 MHz receivers. Four-Button Versatility Control up to four independent devices (e.g., main gate, pedestrian gate, garage door, security alarm) from a single compact remote. Long Range Performance Optimised antenna and RF tuning ensure consistent range in open areas and reliable operation in suburban conditions. Standard Replaceable Battery Uses a common 12 V A23 / GP23A cell ? inexpensive, widely available, and easy to replace without special tools. Compact, Durable Build Pocket-friendly keyring design with tactile buttons and durable casing for everyday use indoors or outdoors. LED Feedback & Low Battery Alert Integrated LED flashes during operation, aiding programming and signalling low battery before performance drops. Installer-Friendly & Widely Supported Commonly used by automation installers, making replacement or adding extra remotes easy and cost-effective. Quick notes & compatibility Ensure your receiver supports 403 MHz code-hopping remotes before pairing. Battery life depends on use frequency and environmental conditions. For high-security sites, combine with a keypad or biometric reader for extra access control. Specifications may vary slightly by production batch ? verify frequency (403.55 MHz), battery type (A23/GP23A), and code type with supplier.