10 BEST SWITCHES & RELAYS for sale in 2025 – compare between the best switches & relays on sale.

Rank Product Rating
1
MHCOZY WiFi Wireless Smart Switch Relay Module for Smart Home 5V 5V/12V,Ba applied to access control, turn on PC, garage door (5v)
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240 Reviews
Product Highlights
  • Easy installation and works perfect with your garage door opener and Alexa,please off power on state in ewelink app when used for garage door,with detailed instruction include.
  • This wireless ewelink wifi relay switch supports inching /self-locking mode.you can add the device to the APP to remote control most home appliances or devices.
  • DIY Your Smart Home,Support Remote turn on/off ,Timing Schedules ,Device Sharing, Group Management
  • Voice Contorl and WIFI APP Remote control your home appliances through the App eWeLink by your phone, available on both Android and iOS

$12.90
2
VIAIR 90111 Pressure Switch with Relay
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62 Reviews
Product Highlights
  • Pressure Switch with 40 amp Relay
  • For 12 volt systems
  • Pressure range 110 PSI On and 145 PSI Off
  • Pressure sensor connects via 1/8" NPT M Port

$28.50 $25.06
3
DC 12V 1CH 433Mhz RF Relay Smart Wireless Remote Control Light Switch, 2 Transmitters with 2 Relay Receiver
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Product Highlights
  • RF technology - long remote control distance
  • Stable signal - The remote relay module provides high signal sensitivity
  • item included - 2pcs transmitter and 2pcs RF receivers
  • Working Mode - momentary, toggle, latching (default toggle mode)

$15.99
4
Voice Control Your Fireplace. 5 Volt Relay Switch KIT. Works with Any Smart Outlet. (Relay Kit - with Power Adapter and 12' Micro USB Cable)
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32 Reviews
Product Highlights
  • "Hey Google, Turn On The Fireplace"....... "Alexa, give me Fire!"...... "Siri, Warm up my toes"..... Whatever you want to say, you can now turn on your gas fireplace with your voice.
  • Use your voice to turn on and off your gas fireplace. Works with any smart outlet (not included)
  • Adding a smart outlet or switch to your fireplace is not enough. Add the Smartly relay switch to turn your fireplace into a voice controlled fireplace.
  • 5 volt Low Power - All switches are tested multiple times before shipping

$26.94
5
DONJON Wireless Remote Switch,AC 110V/120V/240V/ Relay RF Remote Control Light Switches for Pump Security Systems etc with 328ft Long Range(Black)
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96 Reviews
Product Highlights
  • High Power Load:The receiver adopts 40A relay, which can load high-power electrical appliances to ensure long-term stability control.
  • STRONG SIGNAL--Adopts RF technology ,it can pass through walls, floors and doors, control receiver from any place within a reliable distance.Max range is up to 328ft with no obstacle.
  • Easy To Control:It can Learn multiple remote controllers.Each button of each remote controller can learn.A remote controller can control multiple switches,or multiple remote controllers can control a switch.Easy to operate, flexible and arbitrary combination.
  • A Variety Of Working Modes: point movement,self locking,interlocking.Defaul interlock mode.Stable and reliable performance, high receive sensitivity.

$22.99
6
2 Channel WiFi Momentary Inching Relay Self-Locking Switch Module Smart Life/Tuya APP Control WiFi Relay Module for Garage Door Opener, DC 7-32V WiFi Relay Switch Compatible with Alexa Goolge Home
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34 Reviews
Product Highlights
  • ❤ ROMOTE CONTROL & VOICE CONTROL - Wifi smart switch can work perfectly with Alexa-enabled devices like Echo/Tap/Dot, as well as Google home. Just with a simply voice command, Alexa or Google Assistant will work for you, turning on/off the connected devices at once.
  • ❤ EASY SETUP - Just plug in the usb cable, download the Smart Life/Tuya App on App store or Google play store and register an account, then follow the instruction to complete the wifi configuration.
  • ❤ DEVICE SHARING - DIY Your Smart Home, Support Remote turn on/off, Timing Schedules , Device Sharing, Easy to Share, All family can control home appliances through Smart Life/Tuya app Works from anywhere you have internet connection.
  • ❤ DEVICE MODE CHOOSE - This wireless switch supports inching /self-locking mode. In the Self-locking mode, when you press the button on APP (or the manual button on the board) for one time, the relay will be on. The relay will be off only when you press the button once again.

$17.99
7
ONLINE LED STORE 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars
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197 Reviews
Product Highlights
  • Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.
  • Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
  • 12VDC (14V Max) and 30A High Switching Capability.
  • Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).

$16.75
8
PartsSquare 175-185 Degree Electric Cooling Fan Thermostat Kit Temp Sensor Temperature Switch 40 50 60 amp RELAY KIT
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Product Highlights
  • Replacement for : 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 ENGINES
  • New 175 - 185 degree electric fan thermostat relay switch kit for your cooling system, It is a NPT3/8" thread.
  • This kit includes everything you'll need to hook up to your fan, includes a brass adapter to install the sending unit, wires, relay switch, circut breaker, terminals and mounting screws.
  • This kit is set up to turn your electric fan on at 185 degrees and shut off at 175 degrees and will work with any 12 volt system.

$28.43 $19.99
9
Encyclopedia of Electronic Components Volume 1: Resistors, Capacitors, Inductors, Switches, Encoders, Relays, Transistors
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No ratings yet
Product Highlights
  • Amazon Kindle Edition
  • Platt, Charles (Author)
  • English (Publication Language)
  • 773 Pages - 10/20/2012 (Publication Date) - Maker Media, Inc (Publisher)

$11.99
10
HD Switch Starter Relay Kit Replaces John Deere AM107421 Kawasaki Onan 130 160 165 170 175 180 185 316 318 320 420 F510 F525 F910 F930 GX70 GX75 GX95 SX75 SX95 SRX75 SRX95 STX30 STX38 STX46 RX63 RX75
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Product Highlights
  • Upgraded Water Tight Seal - Keeps Water Out!
  • Sealed Relay & Wiring Harness
  • Instructions & Mounting Hardware Included
  • For Machines with Soleniods Mounted to the Starter ONLY - NOT COMPATABLE WITH REMOTE MOUNTED SOLENIODS

$37.99

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