Top Digital Relay Controller

Hilitand AD22B04 12V Signal Decoder 4 Channel DTMF Tone Relay Phone Remote Control PLC

  • 【12V】Working voltage is DC 12V, you can easily find suitable power for this relay..
  • 【reverse polarity protection.】This signal decoder relay ahs reverse polarity protection which can extend the service life..
  • 【8 modes】8 modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5/20/60/120/250-second delay..
  • 【default control】The default control command is 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4.
  • control commands can be changed any 1-4 bits. (For more details, refer to "AD22B04_4 channel DTMF controller commands setting manual ")..
  • 【operating current】Standby 11-13 MA, 1 relay "open" 44MA, 2 relays "Open" 77MA, 3 relays "Open" 110MA, 4 relays"open" 140MA..
Check Stock

Adjustable Car Fan Controller, LITROK Digital Temperature Control Switch Kit

  • Usage range:The temperature control range is -67℉~257℉ (-55℃~125℃),input voltage DC 12V/24V.
  • Separation control:Use the controller to build control circuits, so that the load circuit can be built independently.
  • Start-stop interval:The temperature when starting or stopping the load equipment is 10 degrees Fahrenheit below the set temperature value.
  • Convenient operation:Use LCD and keys to set required temperature value and switch temperature unit.
  • Main accessories:Total length is about 1.5 meters high-precision digital temperature sensor,with a stainless steel case probe.40/60 amp relay.
Check Stock

Macurco TX-12-HS White Hydrogen Sulfide H2S (Line Voltage) Fixed Gas Detector Controller Transducer with White Housing

  • Output: fan relay, alarm relay and 4-20ma current loop.
  • Controls: buzzer, Digital display, latching relay, relay Delay, relay minimum runtime.
  • Mounts on a standard 4” x 4” electrical box.
  • 5 a spdt fan relay controls starters of exhaust fans.
Check Stock

Tuimiyisou Relay Module Board Switch Motor Time Adjustable Delay Relay DC 5V 6V 9V 12V Intelligent Controller Time Adjustable Delay Relay

  • This Relay Delay Switch is easy to use when you are familar with the operation.
  • Relay Board has high precision, stable and reliable performance for your daily use and satisfaction.
  • There are many voltage and time range of the Relay Module for your choice, both "on" time and "off" time are adjustable.
  • Time Adjustable Delay Relay can be widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc.
  • With the Relay Module Controller, your life will be more intelligent and convenient.
Check Stock

Tuimiyisou Relay Module Board Switch Motor Time Adjustable Delay Relay DC 5V 6V 9V 12V Intelligent Controller Industrial Control Components-Module

  • This Relay Delay Switch is easy to use when you are familar with the operation.
  • With the Relay Module Controller, your life will be more intelligent and convenient.
  • Relay Board has high precision, stable and reliable performance for your daily use and satisfaction.
  • There are many voltage and time range of the Relay Module for your choice, both "on" time and "off" time are adjustable.
  • Time Adjustable Delay Relay can be widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc.
Check Stock

Smart RF Relay Switch eMylo Wireless Remote Control Switch DC 12V One Channel Momentary Module 433Mhz Relay Receiver with Two Transmitters

  • ♥ RF Remote Control Switch: lamps or other household electric appliances are controllable using the remote control, which features long control distance, sensitivity, high anti-interference performance and stability..
  • ♥Excellent stability--The relay module provides high signal sensitivity at lower cost and resist interference.
  • ♥Strong signal--eMylo RF relay switch can pass through walls, floors and doors, control receiver from any place within a reliable distance.
  • ♥ More Flexibility & Widely Application: eMylo RF Relay Switch adopts non-directional wireless encoding technology, allowing independent control without mutual interference, can be used in industrial control and security fields, such as light, motor, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc..
  • ♥Easy to set up:The programmable RF receiver and transmitter can be flexibly configured in quantity and in operating modes..
Check Stock

AEDIKO 4pcs DC 5V Relay Module 2 Channel Relay Board with Optocoupler Support High or Low Level Trigger

  • Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A.
  • 2 Channel Relay Module 5V Comes with High-Current Relay,Trigger Current : 5mA.
  • 5V Relay Module is 2 Channel Isolated, Each Relay Can Individually Switch On/Off by An Opto-Isolated Digital Input.
  • Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move.
  • With Optical Coupling Isolation,Triggering More Reliable and Stable.
  • 2 Channel Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers and be Controlled by a Wide Range of Microcontrollers.
Check Stock

Solid State Relay, 90 to 280VAC, 25A

  • Solid state relay module, long service life and high reliability, low drive voltage and current, widely used in many automatic control systems..
  • Model: XRE-1D4840 Solid State Relay 40A DC to AC..
  • Input voltage: 3-32V DC Output voltage: 24-480V AC.
  • Note: The current of this product is 40A for a long time. A large heat sink or fan need to be added..
  • Package Content: 2 x 40A Solid State Relay, ideal for automatic process control application, a must component for temperature controller and other machinery control system..
Check Stock

2Pcs STC-1000 Digital Temperature Controller 12V Thermostat Incubator Thermoregulator Relay Heating Cooling with Sensor Probe Cable

  • STC-1000 temperature controller has 2 relays, compared with other 1 relay temperature controllers, you can wire 2 appliances (heater and cooler) at the same time..
  • Two work mode: Heating ( start temperature is less than stop temperature), Cooling ( start temperature is above than stop temperature), refrigerating contro, output delay protection.
  • STC-1000 temperature control range: -50-99°.
  • control accuracy of 0.1 degrees celsius, control temperature by setting the temperature setting value and the difference value, to set start temperature, stop temperature, corrected temperature correction, delay start..
  • 1M waterproof probe, the digital temperature controller can be used in humid and water environment, you can use it in home brewing, refrigerator, pet feeding, reptile, tank, hatching, fermentation, nursery heat pad, accelerated germination..
  • Automatically switch between cooling and heating modes: Automatically switch between cooling and heating modes to keep your device within the ideal temperature range. The stable and reliable flames retardant plastic shell reaches V0 level and passes the EMC anti-interference test. Audible and visual alerts for high temperature and sensor failure issues..
Check Stock

AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board

  • 【30VDC 250VAC Load】 Equiped with high-current relay, AC250V 10A.
  • DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
  • 【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO..
  • 【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
  • 【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc..
  • 【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection..
Check Stock

12 Volt Timer Relay, DROK 0.1s to 999min 50mA 4-Mode On-Off Automotive Digital Delay Relay, Electric Delay Timer Switch, Cycle Time Delay Module with LED Display

  • 4 MODE TIME DELAY RELAY: DROK 12V relay is provided with 4 different settings and supports various triggering signal source, like positive side of power supply triggering, Button, PNP sensor, PLC signal, which is available for most of applications..
  • WIDE ADJUSTABLE TIMING RANGE: This off delay relay supports widest timing range, 0.1 seconds to 999 minutes adjustable, which can fulfilled your various need..
  • STRONG ANTI-INTERFERENCE ABILITY: The output of digital timer relay adopts optocoupler isolation, which enhances the capacity of resisting disturbance power consumption..
  • SUPER SIMPLE OPERATION: Our relay board is operated by buttons and the delay module is equipped with LED digital display which is convenient for you to check the set value..
  • AUTOMATIC SAVING FUNCTION: After you finish the setting, you can cut off the power and then the parameters will be saved automatically, handy and convenient..
Check Stock

Macurco TX-6-AM Ammonia NH3 Low Voltage Fixed Gas Detector Controller Transducer

  • Fan relay actuation: Selectable from 15 to 75 ppm Nh3.
  • Output: fan relay, alarm relay and 4-20ma current loop.
  • Controls: Digital display (0-100 ppm), buzzer, fan Delay, fan minimum runtime.
  • Mounts on a standard 4” x 4” electrical box.
  • 5 a spdt fan relay controls starters of exhaust fans.
Check Stock