RF Wireless Switches

RF wireless switches at 433.92 MHz look and press like an ordinary light switch and has nothing wired behind it. It sends a radio signal to an RF receiver, and the receiver does the switching.

• Where RF wireless switches solve a problem nothing else can
• It looks and presses like a normal switch
• Adding a second switch to an existing circuit
• Read this: it needs a receiver
• Sizes and what it needs

Where RF wireless switches solve a problem nothing else can

A glass partition. A finished brick or concrete wall where nobody is cutting a chase. The far end of a room from the cable, which is where the switch should always have been. The top of a staircase that was never given a second switch. A rented flat where you may not touch the wiring. In all of those a wired switch is either impossible or an expensive week of mess, and this sticks on in a minute.

It looks and presses like a normal switch

That is the point, and it is what separates this from a remote lying on a table. An 86 by 86 mm plate, 14 mm deep, that reads as the light switch it is pretending to be. Anybody walking into the room uses it without being told anything, which is the test every clever control fails and this one passes.

Adding a second switch to an existing circuit

The classic use. A hallway light with one switch at the bottom of the stairs gets a second one at the top, with no cable pulled and no ceiling opened. Traditionally that job means two way wiring and a fortnight of dust; here it means a receiver at the light and a plate stuck where you want it.

Read this: it needs a receiver

The switch sends a 433.92 MHz signal and something else does the switching. On its own, stuck to a wall, it will do nothing. Budget for an RF receiver or an RF capable relay at the same time, and tell us what the circuit is so we can check the two work together before you order.

Sizes and what it needs

It comes in one, two and three gang, so tell us how many circuits the plate has to cover. Range is up to 20 m indoors and 80 m outdoors, it runs on a CR2032 which is not included, and at 60 grams it holds on adhesive without screws.

The receiving end is a WiFi relay with RF, which takes both radio and app control, or the eMylo RF relay. A handheld RF wireless remote pairs to the same receivers. Wikipedia covers two way switching and why it is normally so much work.