433 MHz transmitter-receiver rolling code SHA256-128bit

EMPIREA protocol: enhanced security and management

Protocol developed by EMPIREA: more secure than a conventional commercial rolling-code system.
Remotes cannot be duplicated: each receiver has its own unique master key; new remotes must be requested from EMPIREA.
Selective removal: if a remote is lost, EMPIREA can provide a replacement remote and disable the lost one without erasing the other stored remotes.
Advanced options: the receiver can be modified to require double or triple reception of a valid code within a defined time window.

Custom developments: EMPIREA can also design even more secure solutions, including bidirectional communication between receiver and remotes, to prevent any useful code capture.

433 MHz RADIO CONTROL

433 MHz remote control and receiver for gates, garages and alarms

Name: 433 MHz remote control and receiver for gates, garages and alarms
Brand: EMPIREA
SKU: EMP-RF433-01
Availability: InStock

System with a receiver capable of managing up to 1024 433 MHz remote controls (512 recommended), for secure operation of automatic gates, garage doors, shutters, alarm systems, access control and other automation. The proprietary EMPIREA protocol uses HMAC-SHA-256 authentication with a 128-bit tag and an anti-replay rolling counter.

Radio frequency433 MHz

Receiver input5-15 VDC

DC ON/OFF output5-15 VDC / 3 A max

Remote supply1 × AAA 1.5 V

Stored remotes512 recommended · 1024 absolute max

AuthenticationHMAC-SHA-256 · 128-bit tag

Replay protectionmonotonic rolling counter

FeedbackLED + acoustic signals

Configuration priceVAT included · shipping included in Italy

Price includes 1 receiver and the selected number of remotes.

433 MHz remote control for gates, garages, alarms and automation

The system combines a radio receiver with handheld remotes and provides a 5-15 VDC DC ON/OFF output, up to 3 A, for remote control of compatible automatic gates, garage doors, shutters, alarm systems, access control and other automation.

EMPIREA protocol security

The rolling-code protocol was developed by EMPIREA to provide a higher security level than standard commercial rolling-code systems. Each receiver uses a different and unique master key; the remotes do not store the master key, but only the specific device key associated with that receiver. For this reason the remotes cannot be duplicated independently and must be produced by EMPIREA for the individual receiver.

Selective management and custom solutions

If a remote is lost, by providing EMPIREA with that remote identifier, a replacement remote can be supplied and the lost one can be selectively removed without deleting the other stored remotes. On request, the receiver can implement stricter checks, such as requiring double or triple reception of a valid code within a defined time window, so that any jamming-and-capture attempt becomes noticeable to the legitimate user. EMPIREA can also develop custom solutions with bidirectional communication between receiver and remotes, making useful code capture impractical.

Main technical specifications