Catalog > Internet of Things (IOT) Related Products > More Platforms RM433MHZ Remote Base RM433MHZ Remote Base SONOFF RM433 REMOTE BASE RM433MHZ REMOTE. SUITABLE FOR SONOFF BASICRF, BASICRFR3, SLAMPHER, IFAN03, D1, 4CH PRO R2, TX SERIES & 433 RF BRIDGE. REMOTE SOLD SEPARATELY (SME RM433 REMOTE CONTROLLER Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Downloads SME SONOFF RM433 REMOTE BASE PDF File 449.47 KB