4 Channel Auto Roll RF Remote Control Relay Board

(Kit or Assembled)



4 channel remote control relay board

(Click Picture to Enlarge)

4 channel transmitter


4 Channel Auto Roll RF Remote Control Relay Board

This is a newer version of the original CK1616 which includes resets on the board so you can use a switch to reset the relay when using toggle mode.  This is handy for applications like a garage door where you would want the motor to stop when the door is closed or open all the way.

This 4 channel remote control relay board is available as a kit or assembled unit.  The relay board uses "Rolling Code" so it is nearly impossible to crack. Features pre assembled and aligned RF modules, pre assembled key-chain transmitter that only requires you to solder battery clips and case. Receiver requires component mounting & soldering. Receiver can "learn" up to 16 transmitters. Transmitters can be used with multiple receivers. 4 channel output with Single Pole Double Throw (SPDT) relays rated 10A @ 28VDC. Each output can independently be made latching (Push-on/Push-off) or momentary. Range exceeds 50meters. Transmitter uses 12V cell (included). Ideal for higher security garage doors, auto gates, electric locks etc.


  • Range is over 50 Meters (~150 feet).
  • Transmits on 433.9 MHz
  • Transmitter comes fully assembled and includes battery.
  • Receiver Power 12 VDC (power supply not included).
    Need a Power Supply?)
  • Circuit draws 8mA in idle state, 1 relay energized 44mA, 2 relays 78mA, 3 relays 111mA, and 4 relays 144mA.
  • Relays have a Common, Normally Closed (NC), and Normally Open (NO).
  • Each Individual Relay is jumper selectable latching or momentary. 
  • Relay Contact Ratings: 240VAC 7Amps, 125VAC 10Amps, 28VDC 10Amps,  (more info on how relays work)
  • Has 4 resets for each relay.
  • Includes transmitter and receiver.
  • Transmitter Dimensions 2-1/4" L x 1-1/2" W x 1/2" H
  • Receiver Dimensions 3-3/8" L x 3" W x 1" H 

See  CK1616.pdf for complete details, including schematic and theory of operation.  This file covers the version 3 updates CK1616v3.pdf  Requires Adobe Acrobat Reader available at www.adobe.com for FREE!

See all of our remote control boards here

Note: This product is offered as a kit or an assembled and tested unit. If you order the kit you will receive parts to build the item pictured.  If you do not know how to solder you can check out our learn to solder kit. CK1616 -  4 Channel Auto Roll RF Remote Relay Board - (Kit) - $54.95
CK1616A  - 4 Channel Auto Roll RF Remote Relay Board - (Assembled) - $79.95
(note:  Assembled still requires soldering the Rx module and antenna to the relay board)
CK1616T - Extra Transmitter for 4 Channel Auto Roll Remote Relay Board - $19.95
A16RX - Receiver Module Only - $21.95

(note: Kit and Assembled unit include Receiver and One Transmitter)

Quantity and Educational discounts?


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