The Sonoff RM433 is a 433MHz RF, i.e. radio frequency, 8-button remote control, which is a useful addition to the RF-enabled, RF-enabled Sonoff devices. The eight buttons can be set for different Sonoff devices (e.g. Sonoff RF (R2 or R3) relay, Sonoff 4CH Pro (R2 or R 3 version) relay, older Sonoff T1 or newer Sonoff TX T1/T2/T3 light switches, SmartWise T4 light switches, SmartWise 5V-32V WiFi+RF relays, Sonoff smart bulb socket) for remote control.

The Sonoff 8-button remote control is also the default controller for the Sonoff D1 dimming relay and the Sonoff iFan03 fan control.

The remote control has a fixed code, and compatible Sonoff and SmartWise devices remember its fixed code. It is not suitable for remote control of RF devices with jump codes.

It can also be paired with Sonoff and SmartWise RF Bridge, and then a rule can be set in the eWeLink app so that the RF gateway repeats the signal locally or controls WiFi devices (without RF) via the cloud.

Other features:

- Weight: 0.055 kg
- Dimensions: 8.6 × 4.5 × 1.25 cm
- Product type: 433 MHz radio (RF) remote control
- Number of circuits: 8
- Physical on/off button: 8 buttons
- RF / radio control (433.92MHz): yes (RF transmitter)