I want 6 indenpendent controlled relays. Can I set up 6 relays and transmitters so there is no cross talk?

Yes, as long as you pair the relay and transmitter separately

Does this only work with a dc power supply? one picture in the product description showed "110/240v live line" but this doesn't seem realistic.

This device is powered off 12v DC, and comprises a radio receiver and mechanical relay. It has an uncommitted set of relay contacts that can however switch any voltage, from a few volts (AC or DC) to 110v or even 240v AC. I would be careful at the higher voltages as the screw wire connectors are small and closely spaced. The relay is a compact packaged part that is energized by the on board radio receiver recognizing the unique code of the transmitter fob when it is pressed. So if you want to switch on a 60W lightbulb you would provide 12v to the receiver circuit and use the built-in relay to control the ‘live’ wire from a 115v wall socket that the lightbulb would plug into, much like a regular light switch.

Can I connect several switches to work with the same remote?

The switch will only work when the 433Mhz transmitter is pressed, so as long as the remote is transmitting the correct frequency it will operate,

Will this work for an old chamberlain/ sears opener? Guess it’s more of an opener question - I don’t know if those old openers use momentary switches

You could definitely wire something into the existing button by splicing in wires that short the leads to the botton when the relay is activated, or doing the same up on the opener if it has the typical exposed terminals. Another thing to consider is that you are going to need a 12V power supply to power this board. Those can be found for under $10 on amazon as well.

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QIACHIP DC 12V 1CH 433Mhz RF Wireless Relay Remote Control Light Momentary Switch Transmitter with Receiver (1 Relay)

QIACHIP DC 12V 1CH 433Mhz RF Wireless Relay Remote Control Light Momentary Switch Transmitter with Receiver (1 Relay)

Product ID: 150280585

Details

Brand
QIACHIP
Color
KR1201B_1
Compatible Devices
Alarm Door
Max Number of Supported Devices
1
Special Feature
Ergonomic

📡164ft max range

🔋CR2032 & 12V battery compatible

🛡️High interference resistance

AED 80

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Description

📡 Command your space wirelessly, no limits attached!

COMPACT YET POWERFUL - Small form factor with high receive sensitivity delivers professional-grade performance.
FLEXIBLE PROGRAMMABLE SETUP - Customize transmitter and receiver quantities and modes to fit your unique control needs.
SEAMLESS LONG RANGE CONTROL - Operate devices up to 164 feet away with reliable signal penetration through walls and floors.
ULTRA STABLE WIRELESS ENCODING - Non-directional RF technology ensures independent control without cross-interference.
VERSATILE INDUSTRIAL SECURITY USE - Perfect for lighting, motors, alarms, and remote security systems—stay ahead in smart control.

The QIACHIP DC 12V 1CH 433Mhz RF Wireless Relay Remote Control Switch offers a compact, high-sensitivity solution for remote device management. With a max range of 164 feet and robust interference resistance, it supports flexible programmable configurations ideal for industrial, security, and smart home applications.

Specifications

ASIN	B07TD8T5C5
Additional Features	Ergonomic
Battery Type	CR2032 (3V) and 12V battery
Best Sellers Rank	#48,440 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #223 in Garage Door Keypads & Remotes
Brand	QIACHIP
Button Quantity	1
Color	KR1201B_1
Compatible Devices	Alarm, Door, Light, Motor
Connectivity Technology	Radio Frequency
Controller Type	Button Control
Customer Reviews	4.5 4.5 out of 5 stars (809)
Item Weight	0.09 Kilograms
Manufacturer	QIACHIP
Maximum Number of Supported Devices	1
Maximum Range	164 Feet
Mfr Part Number	KR1201B_KT08_2_SET
Model Name	KR1201B
Model Number	KR1201B_KT08_2_SET
Number of Batteries	1 CR2032 batteries required. (included)

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AED 80

Duties & taxes included

In stock

Sold byAmazon UAEDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UAE.

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TrustScore 4.5 | 7,300+ reviews

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