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Best Choice MHCOZY 
MHCOZY 1 Channel USB 5V AC/DC 7-32V Smart WiFi Wireless Dry Contact Relay Switch Module,Tuya Smart Life app Remote Contr WIFI app remote,Works with tuya/smart life app,doesn't support ewelink app easy to setup with low voltage 5V 12V 32V,dryComidox 
Comidox 1Pcs Automation DC 12V Time Delay Relay Module LED Display Digital Delay Timer PLC Delay Time Control Switch 0.1 Increase the power supply anti-reverse function.Adopt photoelectric isolation input and output to enhance anti-interfere
XH-M131 Detection Sensor Photoresistor Relay Module Light Control Switch 5V 12V Relay Switch: Depending on the intensity of light, the module can switch an AC or DC load on/off. Load Capacity: The relBest Value meross 
meross Wi-Fi Relay WLAN Switch, Relay Module for Smart Home, Compatible with Apple HomeKit, Alexa and Hey Google, Surfac Smart Switch: meross relay module fits into any standard electrical box and can be surface-mounted/flush-mounted. Upgrad
SICK UE48-20S3D2 Safety Relay Control Module 6024916, 2-NO, 22VDC *NEW* PN: 6024916. SAFETY RELAY. 2 ENABLING CURRENT PATHS. 2 SAFE OUTPUTS / 1 AUX OUTPUT. NEW, pulled from custom never ran unHailege 
Hailege 2pcs 12V Photoresistor Sensor Relay Module Car Light Automatic Control Switch with Cable Operating mode of the relay: NO (normally closed) or NC (normally closed)Rivermidfish AU 
5PCS DC 12V-24V Pulse Trigger Cycle Delay Timer Switch ON/Off Relay Control Module MOS Control Board LED Display 5PCS DC 12V-24V Pulse Trigger Cycle Delay Timer Switch ON/Off Relay Control Module MOS Control Board LED DisplayBrand New 8 Channel Wireless RF433MHz Remote Control Switch Relay Module DC8-86V Mode 3: Interlock. Compact Product, With Working Indicator Light. Coding Mode: Learning Type. Working Mode Mode 1: Tap.Generic 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Maximum 250V 10A and DC30V 10A.´Glow Plug System Control Unit 6461532579 Relay Control Module System For If you are satisfied with our service, pls.DIGISHUO DIGISHUO 2pcs 5V 1 Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger (2Pcs 5V 1 Channel Relay The module uses genuine quality relay, normally open interfacesReland Sun ESP-8266 ESP-01 ESP01S 5V Relay Module Home Control Board (ESP01S) ESP-8266 ESP-01 ESP01S 5V Relay Module Home Control BoardRain Water Sensor Relay Control Module 3.3V-5V Convenient for Arduino Robot Kit Robot kit, raindrop, rain sensor, can be used for monitoring various weather conditions and converted to digital signalGeneric Glow Plug Relay Control Module Replacement Sprinter 3500 Efficient Plug Module - E320 Relay [Efficient Replacement] Manufactured to precise specifications, ideal for sprinter 2500 and 3500, sprinter 3500, and - eRF120N LR7843 AOD4184Isolated MOSFET Module Motor Control PWM Relay Switch Specifications: optocoupler isolation, Mosfet: FR120N, Mosfet: LR7843, Mosfet: AOD4184. Mosfet: LR7843. Mosfet: FR120N.MURANCLOUD DC 12V Universal Wireless Remote Control Switch 433Mhz 2CH 10A Relay Receiver Module with 2 Channel Remote Transmitter D Working Voltage: DC12 V; Max load current: 40 A; Working frequency: 433 Mhz12V Voltage Detection Charging Discharge Monitor Relay Switch Control Module (Set display shut, the minimum current values are 6mA/12V (delay released). 4) After setting is completed, press the “SEGeneric Glow Plug Relay Control Module Replacement Sprinter 3500 Efficient Plug Module - E320 Relay [Efficient Replacement] Manufactured to precise specifications, ideal for sprinter 2500 and 3500, sprinter 3500, and - e12V 0-10A DC Current Detection Module Current Sensing Detect Relay Control New Detection range: DC current between 0~10A. Detection accuracy: 0.01A (10ma). Current detection module 1. Simple operatioMURANCLOUD DC 12V 40A Relay Remote Control Switch, 1CH Universal 433Mhz Remote Control Wireless Latching Function Switch for Indust Working Voltage: DC12 V ; Max load current: 40 A ; Working frequency: 433 Mhz.Timer Switch Module Time Delay Relay Control For NE555 DC 12V Adjustable Module Properties: for NE555 chip. Precision Pulse Generation / Timing. Including the power indicator LED and the switchELEGOO ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 This relay module is 5V active low. Relay output maximum contact is AC250V 10A and DC30V 10A.11% Off Sound Light Control Module Relay Switch Delay Sensor Adjustable 5 V 12 V 24 V Trigger looks great, delay the point president, the small point delay sound will be lower, the test is very simple gas sSING F LTD SING F LTD 1pcs ESP8266 ESP-01S 5V WiFi Relay Module for Smart Home Remote Control Switch Based on ESP-01S WIFI module.4-Channel RS485 Relay Control Module Board Baud Rate 9600 to 115200 BPS Item Type: RS485 Relay Module. 1 x RS485 Relay Module. 64 Parallel Support: In instruction mode, the relay module can suAqara Aqara Dual Relay Module T2 with Matter, Requires Aqara Zigbee 3.0 HUB, Dry Contact Mode for Garage Doors and Boilers, Ro [Homekit and Matter Support] With an Aqara Zigbee 3.0 hub (Excluding the Camera Hub G2H) (*Note: Please ensure that theDC 12V LED Automation Delay Timer Control Switch Relay Module with Case YYC-2 AU The signal triggers the relay to close. Relay Capacity: AC220V 10A / DC30V 10A. If there is a signal, the relay is engagDomary Domary Mini WiFi Switch Module 16A Wi-Fi Intelligent Relay Light Switch APP Remote Control Voice Control DIY Breaker Mod 2 Types for Option: We provide you with wifi, you can choose according to practical needs. A wireless gateway is require4 Channel 5V Relay Control Board Module/Shield Opto-isolated inputs. Indication LEDs for Relay output status. 15-20mA driver current. Equipped with high-current relay,MURANCLOUD DC 12V 24V 36V Wireless Remote Control Switch 433Mhz 4CH Remote Relay Receiver with 2 Transmitters for Garage Door Opene 4 Channel For Wireless Control: the remote switch is a learning switch, it can learn different coding remote controls (sRelay Module 8 Channel 6 Instructions Internal Circuit Protection Relay Control Feature: 1. Stable Performance: The relay circuit board has precise wiring, provides stable performance, practical, easyDIANN DIANN 10pcs DC 5V Relay Module 1 Channel Relay Board with Optocoupler Support High/Low Level Trigger Relay Board Maximum Load: AC 250V/10A; DC 30V/10A With Power and Relay Action Indicator;Trigger Current: 5mA12 BUICK VERANO Safety Restraint System Relay Control Module SRS 13585615 PART # 13585615 PULLED FROM UNWRECKED VEHICLE. SEE PICTURES OFF AND READY. Model: VERANO. VERANO 2012 -2012 Air Bag, (beReland Sun ESP8266 5V WiFi Relay Module Things Smart Home Remote Control Switch Phone APP ESP-01 (Relay Module) Reland SunEosnow Mini Relay Remote Momentary Switch, Small RF Transmitter 433MHz Control Switch PCB for Home with Smoke Sensor Alarm, 100 Application: RF remote control switch is mainly used in switches, lamps, relays, remote controls, circuit boards, speakeMHCOZY MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Compatible wi Bluetooth WIFI Gate opener Relay,Smart life tuya app wifi remote& 433Mhz RF&Bluetooth remote 4 Channel Smart Relay.EasyeMagTech eMagTech 2PCS 2 Channel DC 5V Relay Module PCB Control Board for MCU Control Industrial Sector PLC Control Smart Home Co You will receive 2pcs DC 5V 2 relay module.Biafiog Biafiog Mini Smart WiFi Relay Switch, DIY Light Switch Module Smart Life/Tuya Application, Wireless Remote Control Timetable function: set the and countdown to create a scene. You can set the schedule to automatically turn on/off lightCHENBO 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler for Arduino The module uses genuine quality relay, normally open interfacesBe In Your Mind Be In Your Mind 1PC Adjustable Timer Control Relay Module AC 100V-220V 0-300 Minutes Turn Off Delay Switch Board for Exh It is a power off delay disconnect module suitable for cooling fan, exhaust fan delay.Turn on the output when there is aBiafiog Biafiog AD22B04 4 Channel Relay DTMF Tone Signal Decoder Remote Control Relay Module 12V DC for PLC Smart Home 4 Eight working modes: non-locking (instantaneous), self-locking (triggering), interlocking (latching), 5/20/60/120/250ELEGOO ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 5V 8-Channel Relay interface board, each one needs about 70mA Driver Current; Equiped with high-current relay, AC250V 10YINETTECH YINETTECH 2Pcs 5V XH-M131 Photosensitive Resistor Module Light Control Module Light Control Switch Photoresistor Relay M Main Parameter: The module Operating voltage: 5V. Output type: Output switch. Control capacity: maximum 10A. Load capaciMellisso Mellisso 2X Mini Smart WiFi Relay Switch, DIY Light Switch Module Smart Life/Tuya Application, Wireless Remote Control Group control: create a group for all smart relays for one key control. A smart relay can be controlled by multiple mobiSING F LTD SING F LTD 2PCS Timer Relay 1 Way Relay Module 6.27x3.8x1.9cm Programmable Delay Relay Module for Smart Home Controller Versatile Voltage Range: Operates between DC 6V to 30V, drawing minimal working current of 50mA and a static current ofGugxiom Gugxiom 8 Channel Relay Module ESP32-WROOM-32E WiFi Relay Module, DC5-30V Remote Control Relay Module, Programmable ESP3 Enhanced ESP32-WROOM-32E: Experience the power of the 8 Channel Relay Module integrated with the high-capacity 4M Byte FAribrnten Aribrnten 4CH Tuya Zigbee Smart Switch Module 85-250V Relay Smart Home Remote Control Works with Gateway for Home Replac This product is a wireless switch that supports inching/self-locking mode/interlocking mode. Users can add devices to ZiBEANPRECOY BEANPRECOY DC 12V Adjustable Timer Delay Turn Off Module 10A 250VAC/10A 30VDC Timer Switch Module Adjustable Timer Delay 【Compact and Space-Saving Design】: Measuring just 69.9x19.2mm, this module offers a compact footprint, making it perfectECSiNG ECSiNG 2Pcs 1 Channel 12V Relay Module with Optocoupler Isolation Expanding Board Support Low-Level Trigger Or High-Leve Our relays have a fault-tolerant design, even if the control line is broken, the relay will not operate, making it saferDaXuTech Wireless Remote Switch,Smart Home 433Mhz DC 12V 1CH Wireless Remote Switch Relay Receiver Transmitter Universal Remote C 💡-Very convenient to use, simple wiring diagram connection way.Reland Sun 5V 12V 1 Channel IR Remote Control Relay Module Power Switch Self Locking (12V) 5V/12V 1CH self-locking infrared remote control power on off switchCreate idea Create idea 1Pc 12V Digital LED Cycle Timer Delay Time Relay Control Module Suitable for Timer Operated Equipment Robots The relay module is a multifunctional module with four functions: delay, timing, cycle, and trigger.SING F LTD SING F LTD 2pcs DC 12V Delay Adjustable Timer Relay Delay Turn Off Switch Module with Timer Compatible with A-rduino for ADJUSTABLE TIME RANGE: Our Delay Relay Board features an adjustable time range selection method, allowing you to easilyEMIAOTO EMIAOTO Fan Control Unit Module for Ford Focus Mazda 3 5 Volvo V40 1137328464 1137328663 1137328684 1137328505 113732856 OEM Part Numbers :1137328464 1137328663 1137328684 1137328505 1137328567 1137328713Snblzhef Snblzhef 2-Channel WiFi Relay Module 30A ESP32-WROOM-32E Development Board Module for Smart Home Wireless Control DC7-28 Onboard programmable buttons, LEDs and relays facilitate developers to quickly conduct prototype verification and develoHDPQNHWA 2PCS 1 Channel Relay Module DC 24V 12V 110VAC 220VAC Din Rail Mounted for PLC GSM Relay Control Timer Module(DC 12V) Relay Modules is used for PLC output load current amplification and isolation protection,Mingzhe USB Relay Module High Performance MCU PC USB Smart Control Switch Jog Self Locking [High-performance Microcontroller Chips] - Equipped with onboard high-performance microcontroller chips for efficient anTOLAKO Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU Microcontroller development board can be used as modules, can be used as appliance controlJBtek JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM Equiped with high-current relay, AC250V 10A ; DC30V 10AReland Sun 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion Board (12V) 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion BoardGeneric 2 Pcs 1 Channel 12V Relay Module with Optocoupler Isolation Support High or Low Level Trigger Module uses genuine high quality relay, normally open interface maximum load: AC 250V / 10A, DC 30V / 10AEacam Eacam Smart Home 433Mhz DC 12V 1CH Wireless Remote Switch Relay Receiver Transmitter Universal Remote Control Switch Mod *Very convenient to use, simple wiring diagram connection way.fasient DC 6-30V Digital LED Relay Board Cycle Timing Circuit Switch Timer Delay Trigger Module Micro USB 5V 6-30V input voltage range, support micro USB 5.0V power supply, convenient to useLystin Lystin 8 Channel DC 5V Relay Module Board with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspb DC 5V 8-Channel Relay interface board, each one needs 15-20mA Driver Current.Waveshare 8-CH Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protectio This product is an industrial 8-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, suTopHomer Bluetooth Relay Module, 12V Mobile Phone Remote Control Switch with Indicator Light Compatible with Android System Onboard Module: onboard SPP-C bluetooth serial port integrated with wireless control function.KNACRO KNACRO DC 05V 3-Channel 30A Relay Control Module Bi-Directional Isolated Control Module High/Low Level Trigger (DC 24V, Bidirectional isolation 3-Channel high-power relay control module, select the high or low signal trigger, only need 3mAKNACRO KNACRO SRD-05VDC-SL-C 2-Way 5V Relay Module Free Driver USB Control Switch PC Intelligent Control (5V 4-Channel) If you nedd the soft and C++ code to control this device, just contact us on amazon!MHCOZY MHCOZY WiFi Wireless Smart Switch Relay Module for Smart Home 5V/12V，WiFi Momentary and Self-Locking Relay,Be Applied to WIFI app remote and voice control,and extra 433Mhz RF control,Automate your Garage to WIFI Smart Garage Door Opener,no hCHENBO 2 pcs 5V 2 Channel DC 5V Relay Module with Optocoupler High/Low Level Trigger Expansion Board for Arduino Maximum load: AC 250V/10A, DC30V/10ALONELY BINARY Lonely Binary 12-Pack IRF520 MOSFET Switch Modules – DC Load Control up to 24V 4A – Compatible with Arduino, Raspberry P ✅【12-Pack Value】Includes 12 IRF520 MOSFET modules for high-current DC control with microcontrollers.senzooe 5PCS DC 5-36V Digital LED Relay Board Dual-MOS Trigger Cycle Timing Circuit Switch Timer Delay Module 5PCS DC 5-36V Digital LED Relay Board Dual-MOS Trigger Cycle Timing Circuit Switch Timer Delay ModuleReland Sun 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion Board (5V) 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion BoardReland Sun DC 12V 8 Channel for Phone Bluetooth Control Relay Module for Smart Home LED Lighting system Working voltage: DC 12VBe In Your Mind Be In Your Mind 5PCS G5NB-1A-E-12VDC SPST-NO Single-Pole Single-Throw Relay 5A 250VAC Power Switching Module for Domesti Versatility: G5NB-1A-E-12VDC relay is a single-pole, single-throw normally open (SPST-NO) relay, which can be widely useReland Sun 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion Board (24V) 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion BoardBe In Your Mind Be In Your Mind 5PCS G5NB-1A-E-12VDC SPST-NO Single-Pole Single-Throw Relay 5A 250VAC Power Switching Module for Domesti Versatility: G5NB-1A-E-12VDC relay is a single-pole, single-throw normally open (SPST-NO) relay, which can be widely useHomyl HOMYL DC 12V 8-Channel USB Relay Board Module PC Computer Control for Home Automation This is USB controlled relay module with 8 relays SRD-05VDC-SL-C.MHCOZY MHCOZY 4 Channel Smart WiFi Wireless Dry Contact Relay Switch Module USB 5V AC 85-250V, Tuya Smart Life App Remote Contr WIFI RF Bluetooth 220V Smart Clean Contact Relay, WiFi Remote Control of Smart Life APP Yours, and 433Mhz RF Bluetooth RGeneric 2pcs 5V Single 1 Channel Relay Module Board Shield for Arduino Microcontroller development board can be used as modules, can be used as appliance controlMarhynchus ZW101 Fingerprint Relay Switch Module Biometric Access Control Relay with 0.96 Inch OLED Screen and 5V Relay for Secure [Easy Setup] Type c power supply and link+uart debugging port support easy setup, customization, and secondary developmeUeeKKoo Industrial 6-Channel ESP32-S3 W-i-F-i Relay Module, Supports W-i-F-i/B-L-E / RS485 Control, Onboard RS485 / Pico HAT Int Industrial 6-Ch ESP32-S3 W-i-F--i Relay Module, Supports W-i-F--i / Blue--too-th / RS485 control, Onboard RS485 / Pico HRobomaker 16 Channel 5V Relay Module Board for Arduino and Raspberry Pi, Low Level Trigger Versatile Module: This 16-channel relay module allows you to control up to 16 devices or appliances simultaneously withLIVISN LIVISN 4 Channel 24V 10A Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment This module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10AHALJIA HALJIA 3PCS 2 Channel Relay Module - 5V Relay Board Expansion Board High Performance Accessories with Optocoupler for Ra The relay uses high quality material, single pole and double throw. a common end, a normal open end and a normal closed17% Off JESSINIE JESSINIE 12V Bluetooth Relay Module - Mobile Phone Wireless Remote Control Switch - IoT In the open environment, the maximum stable transmission distance of the mobile phone when it is carried on the BluetootMellisso Mellisso 5X Esp8266 Esp-12F Wifi Relay Module 2Channel 5V/8-80V Network Relay Switch for Ide Smart Remot Control 3. Onboard WIFI module reset button;Create idea Create idea 5pcs 817 2-Channel Optocoupler Isolation Voltage Control Switching Module 3.6-24V Driver Photoelectric Isola This module is used when it is necessary to isolate the control in actual work and voltage conversion.It can realize 3.3Shanrya Relay Module, ESP8266 Relay Module Wireless Development Board WiFi 8‑Channel ESP8266 Development Board with 6 X Socket f 【Premium Materials】The relay module made of high‑quality materials, light and waterproof, with good insulation propertieWaveshare Waveshare 8-ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication and Power Supply, with Vari Note: Please contact the customer service or refer the product pictures to know the details and specifications.LGDehome LGDehome 2pcs DC 5V 4 Channel Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Rasp Working Voltage:AC250V 10A£»DC30V 10A£»5V 4-Channel Relay interface board;High-current relay for more protection for youSenzooe 16-Channel 12V 5V Relay Module Board (12v) 16-Channel 12V 5V Relay Module Boardsainsmart SainSmart 4-Channel Relay Module 5V 4-Channel Relay interface board, and each one needs 15-20mA Driver CurrentJimcat star 2PCS 4-Channel Micro-USB HID Drive-Free USB Computer Control Switch Relay Module USB Smart Switch 2PCS 4-Channel Micro-USB HID Drive-Free USB Computer Control Switch Relay Module USB Smart SwitchReland Sun 5pcs 4 Channel CH4 5V 12V 24V Relay Module Shield for ARM PIC (5V) 5pcs 4 Channel CH4 5V 12V 24V Relay Module Shield for ARM PICJimcat star 2PCS 4-Channel Micro-USB HID Drive-Free USB Computer Control Switch Relay Module USB Smart Switch 2PCS 4-Channel Micro-USB HID Drive-Free USB Computer Control Switch Relay Module USB Smart SwitchA-premium A-Premium Diesel Glow Plug Control Relay Module Compatible with Mercedes-Benz Sprinter 2500 3500 2010-2012 & Freightline [Vehicle Fitment]: Compatible with Dodge Sprinter 2500/3500 2007-2009 V6 3.0L; Compatible with Freightliner Sprinter 250ACSUZ Intermittent Delay Wiper Motor Module Control Relay 377 11 Pin for Audi A4 Jetta Golf Passat B5 4B0955 531A High quality 11 Pin Intermittent Delay Wiper Motor Control RelayMetal and plastic material, strong and long service lifeHiLetgo HiLetgo 2pcs DC 5V Trigger Time Delay Switch Relay Module Adjustable Time Delay Control Swtich Trigger Delay Conduction Trigger Time Delay Switch Relay Module Adjustable Time Delay Control SwtichWATIIFUFU WATIIFUFU 4pcs Relay Control Module for Arm Avr Mcu Efficient Single Channel Relay Board for Home Appliance Control and Delay relay module--the module operates at 5v and features a single relay, making it suitable for controlling differentWaveshare Waveshare RPi 8 Channel Relay Expansion Board 5V Power Supply Compatible with Raspberry Pi A+/B+/2B/3B/3B+/4B Control Hi Supports Raspberry Pi A+/B+/2B/3B/3B+, Jetson Nano; High quality relays, loads up to 5A 250V AC or 5A 30V DCXiuxin Xiuxin 2pcs 5V 8 Channel Relay Module Board for Arduino PIC AVR DSP ARM 2pcs/lot 8 Channel relay module board, Working voltage: 5VHUANQIN HUANQIN 1CH Zigbee Mini Smart Switch Relay Module, 2 Way Control, Alexa Compatible 【Mini Body】Designed mini body, which suits for most of amounting boxes, switches and wall sockets.Qezodsx Qezodsx One Channel Relay ESP32-WROOM Development Board Single Relay Module DC 7-60V Power Supply for Home Appliance Acc 1. On-board and stable ESP32-WROOM-32E module, capacity 4M Flash;Starrypxl Starrypxl Relay Control Module 15 Channel RS485 RS232 PLC DO PC UART Serial Switch Board DC24V WITH 6 INSTRUCTIONS: Relay control module come with open, close, Momentary, self lock, Interlock, Delay 6 instructionsRakstore Rakstore XY-WJ01 DC12V LED Digital Timer Relay Delay Switch Module Programmable Timer Relay Control Switch Timing Trigge Timing range: 0.01 sec~9999 min continuously adjustableReland Sun 5pcs 2 Channel CH2 5V 12V 24V Relay Module Shield for ARM PIC (5V) 5pcs 2 Channel CH2 5V 12V 24V Relay Module Shield for ARM PICHieoAnir DC 12V Wireless Radio Remote Control Switch, 433Mhz RF Relay Receiver Module with 4 Transmitters for Smart Home Remote S [Long Range]: Small and the performance is stable and reliable, high sensitivity, signal can pass through walls, floorsXTevu XTevu ESP8266 Relay Module 16 Channel Remote Control Development Board, DC 24V Channel Bluetooth Relay Board Remote Cont [MATURE STABLE MODULE] An onboard ESP‑12F with 4M Byte Flash for high efficiency.Senzooe 5PCS XH-M131 photosensitive Resistor Module Brightness Automatic Control Module Light Relay Switch (5V) 5PCS XH-M131 photosensitive resistor module brightness automatic control module light relay switchEacam Eacam Solid State Relay Module, 6 Channel DC to AC Solid State Relay 3‑32VDC Input 5‑8A 24‑480VAC Load SSR Module, DIN R [Built-in Transformer] Solid state relay module comes with a built-in transformer for immediate and stable operation, enDEKD 8 Channel Relay Module, LED Indicator ESP32‑WROOM‑32E Better Control Development Board Wireless Control for AC 250V Stable ESP32 Module: The onboard ESP32-WROOM-32E module with large capacity 4M Byte Flash, supports the use of developmeTOOLSGO TOOLSGO Relay Control Module 15 Channel RS485 RS232 PLC DO PC UART Serial Switch Board DC 24V Versatile and Multifunctio Scratch Immune ABS: Made of good quality ABS material, possess good impact endurance, scratch endurance, environmentallyReland Sun 5PCS KY-019 5V One Channel Relay Module Board Shield PIC AVR DSP ARM Relay 5PCS KY-019 5V One Channel Relay Module Board Shield PIC AVR DSP ARM RelayMellisso Mellisso 8 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board DC 5V/7-28V E- APP Remote Control 2. The I/O port of the WIFI module and the UART program download port are all led out to facilitate secondary developmen