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Sensor Type
Contact Closure
Low Voltage
Water & Irrigation Type
Sprinkler Control
Contact Closure / Relay
Contact Closure Input / Output
Door Strike Control
# of Relays
1 Relay
Ease of Installation
Intermediate (Installs < 60 minutes)
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Ideal for Switching High Current Load Devices
ELK-912 SPDT Relay Board
ELK-912 SPDT Relay Board
ELK-912 SPDT Relay Board
Item# 7278
Price: $8.80
Free shipping on orders over $50 - See Details


  • 12 Volt DC relay with SPDT (Form "C") dry contacts
  • Great For General Purpose Switching
  • Low Current Draw
  • Positive Or Negative Activation
  • Elevator Style Screw Terminals

Essential Info

This general purpose compact relay features SPDT Form "C" heavy duty dry contacts, low current draw and positive or negative activation. Control high current draw devices such as door strikes, sprinkler valves, electric dampers, motors, and more from your home automation controller or any other device producing a low voltage output signal. The input and output terminals are "elevator style" screw terminals. The trigger voltage is 12VDC.


What's Included

  • 1x - SPDT Relay Board ELK-912
  • Specifications


    Manufacturer Product No.:ELK-912
    Dimensions:1.5" x 2.75" (28 x 39mm)
    Operating Voltage12VDC
    Current Consumption30mA
    Minimim Pull-In Voltage9VDC
    Contact Rating:7A @ 30VDC
    10A @ 125VAC

    Important notes:
    Defective exchanges for identical item within Manufacturer’s warranty period.
    Manufacturer contact information: ELK Products Inc, Tel: (800) 797-9355


    44 Ratings
    5 star: 82%  (36)
    4 star: 11%  (5)
    3 star: 7%  (3)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (44 customer ratings)
    Share your thoughts with other customers
    BENOIT -- quebec, QC   6/27/2014
    Works as specified. Very good.
    CHRISTOPHER -- corydon, IN   12/8/2013
    Worked like a charm...
    COLIN -- osoyoos, BC   10/27/2013
    Simple and works as expected. Our well is nearly 1000 feet from the house, and I use this to switch a 40A contactor which controls the pump.
    DENISE -- henderson, NV   10/17/2013
    Item exactly as described with a good price and fast, reasonably priced shipping.
    JOHNATHAN -- surprise, AZ   9/18/2013
    Great product
    ANTHONY -- hamilton, ON   6/23/2013
    excellent transaction
    DONALD -- avoca, NY   1/26/2013
    Works very good and is silent but wish it had a mounting bracket,but so far the 2 sided tape is holding up. Had to mount it above ceiling tile on the drywall
    Jerry G -- littel rock, AR   12/11/2012
    This ELK-912 Relay is one little inexpensive yet versatile product. I needed to connect my GE Concord 4 Security Control Panel to Lutron VCRX Visor Control Receiver that handles the program for flashing exterior lights and locking on interior lights while alarm is sounding. GE Concord has not supported driver for Lutron. An electrical engineer on the Lutron Radio RA2 discussion site told me about his relay. He is awesome and so is the relay. That was the final step and setting up my Lutron system to take advantage of all its features. The ELK-912 at $8.50 is awesome device.
    MIGUEL DINA - -- miami, FL   10/20/2011
    These pieces worth every penny. VERY well packaged and presented and works fine. Absolutely a great buy.
    TIM -- seaside, CA   4/15/2011
    Perfect for my app. Good price.
    WILLIAM -- hudsonville, MI   10/30/2010
    Works as expected. No issues.
    JOSEPH -- little rock, AR   8/7/2010
    Minimum space-Maximum utility. Excellent quality and value.
    TODD -- carrollton, TX   6/27/2009
    Man I wish I knew about this great product years ago. If you do stuff with relays, this is sooo worth the $$. I always have trouble with the connections to relays ususally, but the tiny terminal block on this one makes is a breeze. Also, the little circuit board has mounting holes so if you are looking to secure it, now no big deal. Try doing that with a socketless loose relay.
    JONATHAN -- pittsboro, NC   10/23/2008
    I have installed this relay but unfortunately I have yet to complete the system in which it was installed. Though I can't comment on its operation, I can say that I am very pleased with my experiences with This relay is not the first product I've ordered from nor will it be the last.
    ROBERT -- junction, TX   9/14/2008
    High quality relay, solves a problem I've had for two years.
    JACQUES -- santa clara, CA   5/26/2008
    Good quality relay. Used it to drive a high-power alarm siren. Smarthome is a reliable vendor.
    CHRIS -- minneapolis, MN   3/10/2008
    The 7278 relay board is fantastic. Did exactly what I needed it to do, control the lowering and raising of a 107" screen, perfectly. And what can hardly be described as second most important, it saved me $190 compared to the screen manufacturers low voltage relay. THANK YOU VERY MUCH!
    JEFFREY -- collierville, TN   3/9/2008
    Low cost and small size. Works great.
    ANDY -- washougal, WA   11/29/2007
    These things seem to work great. Used in a watertight outdoor box- working great so far
    DAN -- bolton, MA   11/10/2006
    Worked fine.

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