somfy
✓Radio Wall Transmitters
Somfy 1870781 - RTS Radio Wall Switch | To Control 3 RTS Motorisations | Wireless | Waterproof
★★★★★4.7
$137.99
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$81.99
Extra 4 Channel Radio Transmitter with Bar 1 Piece RNK-Vordruckverlag 04
★★★★★
$81.99
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1
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About this item
- The RNK-04 radio switch is a 2-button, 4-channel transmitter of the EXTA FREE system. Allows radio control of system receivers. It allows independent control of four receivers.
- It is used to perform control functions such as: power on/off, lightening/dimming, roller shutters up/down, time operation. One device offers many possibilities while being easy to use.
- RNK-04 is characterised by a long range of up to 250 m in open terrain. It is possible to increase the range with the RTN-01 Retransmitter available in the Exta Free system and adapt the device to individual needs.
- The RNK-04 wireless switch is a battery operated device, so we don't have to worry about unnecessary wiring. The battery type used is CR2032 and its service life is estimated to be 3 to 5 years (depending on use).
- Due to its small size and light weight and without the need to connect an external power supply, it can be mounted on any surface, including glass, wood, etc. Installation is quick and easy, without any difficulty.
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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