433 MHz RADIO CONTROL

433 MHz transmitter-receiver rolling code SHA256-128bit

Name: 433 MHz transmitter-receiver rolling code SHA256-128bit
Brand: EMPIREA
SKU: EMP-RF433-01
Availability: InStock

433 MHz radio-control system with multi-remote receiver and individually identified transmitters. HMAC-SHA-256 authentication with a 128-bit tag, anti-replay rolling counter and selective remote management.

Radio frequency433 MHz

Receiver input5-15 VDC

Switched output5-15 VDC / 3 A max

Remote supply1 × AAA 1.5 V

Receiver memory512 recommended · 1024 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.

Typical applications: Access control · remote equipment activation · automation · DC load control

Security and remote management

The receiver can store up to 1024 remotes; for optimal response times, operation with up to 512 remotes is recommended. LEARN pairs a new serial number; if the same serial is already stored, repeating LEARN removes only that remote while leaving all others unchanged. A monotonically increasing counter rejects previously accepted frames. Each transmitter stores its own device key and does not contain the receiver master key.

Main technical specifications