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Best Choice SING F LTD 
SING F LTD 4X 1-Channel PC817 Optocoupler Isolation Module (3-5V) Suitable for Photoelectric Isolator Signal Ssolation 1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring.eMagTech 
eMagTech 50PCS PC817 Optocoupler in-Line 2.54mm Pitch 4-pin DIP-4 Mounting Transistor Output Opticalcoupler for Computer Feature : Integrated circuits have the advantages of small size, light weight, small solder joints, long life, high reli
6N137 Fairchild High Speed Optocoupler AU STOCK FAST POSTAGE 6N137 DIP-8 Fairchild Industies High Speed OptocouplerBest Value SING F LTD SING F LTD 4X 1-Channel PC817 Optocoupler Isolation Module (12V) Suitable for Photoelectric Isolator Signal Ssolation an 1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring.
PC817 2/4-Channel Opto-isolator breakout for Arduino Optoisolator Optocoupler 4-Channel Optocoupler Isolation Module. 1 X 4-Channel Optocoupler Isolation Module. 2-Channel Optocoupler Isolation ModuZopsc 
Zopsc 4 Channel Voltage Converter Optocoupler Isolated Board Adapter Module, 3.3V/5V to 3.6V/24V, Strong Anti-Interferen 【Easy for Use】It can realize 3.3V or 5V to control the interface of 3.6--24V voltage level. After the control terminal iEMSea 
EMSea 50x Op Amp Timer Darlington Optocoupler Low Input IC Assortment Kit 10 Type Package includes: In total 50pcs 10 size, each size per 5pcs. You will get LM324, LM358, LM386, LM393, UA741, NE5532, NE1pc ~10pc Sharp PC817C 817 Optical Isolator 1 Channel Optocoupler SMD Gullwing Sharp PC817XI LTV817 817 Optical Isolator 1 Channel Photo Optocoupler. Available as 1pc ~10pcs. Mid North Coast ComponenCreate 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 3.3Set of 5 VTL5C9 OptoCouplers for Xvive Audio Essential for Audio Equipment VTL5C9 for Xvive audio optocoupler. The real color of the item may be slightly different from the pictures shown on websReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiGeneric 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 / 10APC817C PC817 DIP4 Transistor Output Optocoupler Pack of 20 Product types: transistor output optocoupler. Maximum input diode current: 50 mA. Input Type: DC. Maximum collector currReland 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 Board10pcs PC817C SMD-4 Optical Isolator 1-Channel Optocoupler AU STOCK FAST POSTAGE 10 CHIPS PER PACK PC817C SMD-4 Optical Isolator 1-Channel OptocouplerReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiCJMCU-1201 Magnetic Isolator Module Replace Optocouplers ADUM1201 Isolator Board CJMCU-1201 Magnetic Isolator Module Replace Optocouplers ADUM1201 Isolator Board ADUM1201ARZ SOIC 8 Isolator SPI Interfa20% Off ELEGOO 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.MOC3021 Optocoupler DIP-6 AU STOCK FAST POSTAGE MOC3021 DIP-6. Optocoupler Triac Driver.Senzooe 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul1pc ~10pc Sharp PC817C 817 Optical Isolator 1 Channel Optocoupler DIP Sharp PC817XI LTV817 817 Optical Isolator 1 Channel Photo Optocoupler. Available as 1pc ~10pcs. Mid North Coast ComponenJimcat star 2PCS DC 3.3V 5V NPN Low Level Output 8-Channel Optocoupler Isolation Board Signal Converter Opto Voltage Isolation Modul 2PCS DC 3.3V 5V NPN Low level output 8-Channel Optocoupler Isolation Board Signal Converter Opto Voltage Isolation ModulCNY17-3 Optocoupler Phototransistor AU STOCK FAST POSTAGE CNY17-3 Optocoupler PhototransistorDIANN 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: 5mAMOC3083 DIP-6 Zero-Cross Triac Driver Optocoupler AU STOCK FAST POSTAGE MOC3083 DIP-6 Zero-Cross Triac Driver OptocouplerReland Sun 5PCS 5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger (12V) 5PCS 5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger2/5/10Pcs 4N33 Optocoupler 4N33 Optocoupler. Colour supplied can be black or white. Mounting Type Through Hole. Vce Saturation (Max) 1V. Current -EC Buying EC Buying 5Pcs 3-5V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optoco 1-way optocoupler isolation module with EL817 features, providing input voltage of DC 3V ~ 5V and output voltage suitablMOC3021 Triac and SCR Output Optocouplers Optocoupler TRIAC 6-Pin Dip (2 pcs) Power Dissipation: 330 mW Output Device: PhotoTriac. Manufacturer: Motorola Output Type: AC.Hyuduo Hyuduo H Bridge Design DC Motor Driver Module Optocoupler Isolation High Power TVS Industrial Grade for Electronic Compo [Enhanced Motor Control] Double h-bridge design allows simultaneous of two dc motors, supporting 7a current per channel.1 Reel 2000 pcs. Transistor Output Optocouplers OPTOCOUPLER 4-PIN DIP /IN HAND Transistor Output Optocouplers. This is for 1 reel. Output Type Number of Channels Current Transfer Ratio Renesas ElectrMadifei AU 5Pcs 12V 8 Channel Relay Module Interface Board with Optocoupler 5Pcs 12V 8 Channel Relay Module Interface Board with Optocoupler10pcs ADUM1201 ADUM1201ARZ Magnetic Isolator Replace Optocouplers By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with opSenzooe 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulSenzooe 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulMarhynchus Marhynchus Optocoupler Isolation Relay Module, High Level Actuator 3 Channel Relay Module with Optocoupler Isolation, DC [Independent Control] This 3 channel relay module ensures independent control without interference, for home automationReland 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 BoardReland 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 Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiHOBBYIN HOBBYIN 5PCS 1 Channel Optocoupler Isolation Module,DC12V Optocoupler Isolation Module EL817 Opto PNP NPN Signal Convert Reliable Optocoupler Isolation: The 5 PCS Optocoupler Isolation Board is designed to provide reliable signal isolation aReland Sun 5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger (9V) Module uses genuine high quality relay, normally open interface maximum load: AC 250V / 10A, DC 30V / 10AAswalling Aswalling 10Pcs PCB Board Through Hole PC817C PC817 EL817 817C Optocoupler DIP-4 4 pins, dual row, 2.54mm pitch.Beufee Optocoupler, 4 Channel Optocoupler Isolation Board Optocoupler Isolation Module Optocoupler PC 817 Optoisolator Module PRACTICAL: Optocoupler can realize 3.3V or 5V to control the interface of 3.6 to 24V voltage. After the control terminalCHENBO 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 interfacesECSiNG 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 saferMachineMid 100pcs/lot SMD optocoupler EL817C (PC817) EL817S-C SOP-4 100pcs/lot SMD optocoupler EL817C (PC817) EL817S-C SOP-4Reland Sun 5PCS/LOT IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module for Motor Test Reland SunReland Sun PC817 2 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Mod Reland SunYINETTECH YINETTECH 4Pcs VTL5C3 Opto-Coupler VTL5C DIP-4 Audio Opto-Coupler (Vactrols) Linear Opto-Isolator Suitable for Many Guit Reland Sun 5V 8 Channel Relay Module With Optocoupler 5V 8 Channel Relay Module With OptocouplerSnblzhef Snblzhef 1 Channel Way Optocoupler Isolation Module PC817 3V-5V Photoelectric Isolator Rail Holder PLC Drive Motor Board Type:1 Channel Way Optocoupler Isolation ModuleYIQFOCA 5 Set 3V 1 Channel Relay Power Switch Board, High Level Driver Optocoupler Module Isolated Drive Control Board for ESP82 You will recevie 5Pcs 3v Relay 1 Channel power switch module compatible with 10A 250VAC and 10A 30VDC load.5pcs * 2.5 mmMealoodiousmusea EL357N-C Optocoupler Isolation Module Signal Level Convert PNP 5V A mini optocoupler isolation,signal level conversion module.EC Buying EC Buying 5Pcs 24V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optocou 24V optocoupler isolation board with EL817 features, providing a wide input signal voltage range of DC1.8V-24V and a maxReland Sun 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler Protection (12V) 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler ProtectionCHENBO 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/10AShanrya AC Optocoupler Module, Optocoupler Module 3P Terminal Connected to The Microcontroller Input for Workshop for Laboratory Output TTL level, can be detected with the microcontroller. The power supply can be 3‑5V.VOGURTIME 8 Channal 5V Relay Module with optocoupler Isolation high and Low Level Trigger Relay Red Board High Quality Module - the relay module uses genuine high-quality relays. The maximum load of the frequently opened interVikye 5pcs 1 Channel Optocoupler Module, 220V AC Green 5pcs Optocoupler Isolation Modules Isolation Module Support PLC 5PCS IN 1 SET: Including 5pcs optocoupler isolation modules, small and compact, easy to install and replace, has a wideSluffs 1 Channel Optocoupler Isolation Board Voltage Converter Adapter Module,Opto Isolator Module Voltage Detection for PLC AC [DETECT OUTPUT TTL LEVEL]: This Opto Isolator Module allows for the detection of output TTL level by a microcontroller.Mingzhe 2 Channel Relay Module Optocoupler Isolation High Low Level Trigger for Home Automation (5V) [Optocoupler Isolation] Smt optocoupler provides strong driving ability and stability.Domary 3 Channel Relay Module High Voltage Relay Board Isolated Optocoupler High Low Level Control for Home Automation (5v (3.3 [Convenient Interface Design] With a user-friendly interface, all connections can be easily made through terminal wiringJESSINIE JESSINIE 3 Channel AC 220V Optocoupler Isolation Module AC Detection Module 220V Testing Module 3 Channel 220V optocoupler isolation module, using NPN transistor to output saturated conduction current up to 100-300MAReland Sun 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler Protection (5V) 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler ProtectionTTOCAR Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Iso HIGH LEVEL OR PULL DOWN OUTPUT: Whether the output terminal is high level output or pull down output can be realized thrSnblzhef Snblzhef Optocoupler Tester, Optocoupler Test Detection Device for 817 4-Pin TL431 MOS IGBT Transistor Bold and hardened test pin with elasticity.TTOCAR Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Iso HIGH LEVEL OR PULL DOWN OUTPUT: Whether the output terminal is high level output or pull down output can be realized thrGeneric 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Maximum 250V 10A and DC30V 10A.Reland Sun DC 5V 12V 24V 1 Channel Relay Module 30A with optocoupler Isolation high and Low Level Trigger Relay Module (24V) Reland SunGikfun Gikfun OPTOCOUPLER DIP-4 PC817C PC817 for Arduino Diy (Pack of 20pcs) AE1143 Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817Peakloong Peakloong High Precision Optocoupler Detection Equipment for 817 4-Pin TL431 MOS IGBT Transistor Bold and hardened test pin with elasticity.Snblzhef Snblzhef Optocoupler Tester, Optocoupler Test Detection Device for 817 4-Pin TL431 MOS IGBT Transistor With test indicator light.MiZOELEC 10pcs/lot MOC3063 MOC3063-M EL3063 DIP-6 Driver Output Optocoupler ICS 10pcs/lot MOC3063 MOC3063-M EL3063 DIP-6 Driver Output Optocoupler ICSNOYITO NOYITO PC817 8-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolate This module is used when it comes to the need for isolation control and voltage conversion.HALJIA 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 closedCGTOLOS CGTOLOS 4 Channel Relay Module 30A Load Current with Optocoupler Isolation Supports High and Low Triger 5V 12Volt 24Volt This module uses a double-sided printed circuit board, and the layout of the entire module is reasonable and beautiful.Anlayliay Anlayliay Optocoupler Tester Online Detection Tool for Electronic Repair Special 4 Pin Optocoupler PCB Repair Blue 1, to confirm that the board under has been powered off, and the electrolytic capacitors of the motherboard days have beReland Sun Reland Sun 10pcs LTV-814 DIP-4 LTV814 DIP LTV-814A compatible optocoupler PC814 DIP4 10pcs LTV-814 DIP-4 LTV814 DIP LTV-814A compatible optocoupler PC814 DIP4MiZOELEC 10pcs/lot DIP optocoupler optocoupler 4N26 EL4N26 DIP6 10pcs/lot DIP optocoupler optocoupler 4N26 EL4N26 DIP6Generic Imported TLP2745 SOP6 Patch Drive optocoupler optocoupler SOP-6 Package contents:TLP2745 SOP6 (1pieces)Aswalling Aswalling Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repai After many hardware updates and parameter modifications, the current generation is very easy to use. As long as the indiGeneric 12V 1 Channel 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 / 10AKNACRO KNACRO SLA-24VDC-SL-C 1 Channel Relay Module DC 24V 30A with optocoupler Isolation Support High Level Low Level (DC 24V) Authentic quality module 30A relay, normally open interfaces Maximum load: AC 250V / 30A, DC 30V / 30A;Justivana Justivana Optocoupler Tester Optocoupler Detection Tool Optocoupler Online Module Optocoupler Electronic Repair Tool Before testing, the motherboard must be powered off and then discharged. Testing cannot be carried out while the power iDaiilg Daiilg Optocoupler Tester Optocoupler Detection Tool Optocoupler Online Module Optocoupler Electronic Repair Tool After many hardware updates and parameter modifications, the current generation is very easy to use. As long as the indiIsMwav IsMwav Optocoupler Tester Optocoupler Detection Tool Optocoupler Online Module Optocoupler Electronic Repair Tool After many hardware updates and parameter modifications, the current generation is very easy to use. As long as the indiJimcat star 10PCS PC817 2 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Shield 3.6-30V Driver Light Insulati 10PCS PC817 2 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulatiSnblzhef Snblzhef 2pcs 5.0 Optocoupler Test Instrument Online Detection Tools for Electronic Repair Special for Optocoupler Test 3, the optocoupler test board connected to the USB power cord, the test board probe contact need to test the optocoupler20% Off ELEGOO 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 10Mellisso Mellisso Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Before testing, the motherboard must be powered off and then discharged. Testing cannot be carried out while the power iTENOL TENOL High-performance Optocoupler Isolation Module for 24V Input, NPN Output, 3.3V Size: 7.4 x 25mm/0.3 x 1inchReland Sun IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module for Motor Test Reland SunJimcat star 5Pcs 12V 8 Channel Relay Shield Interface Board with Optocoupler 5Pcs 12V 8 Channel Relay Module Interface Board with OptocouplerDomary Domary 8 Channel Optocoupler Relay Module Board High & Low 5V/12V/24V, for Versatile Applications (24V) Adopt patch photocoupler isolation with strong driving ability; current is 5ma.Lystin 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.HiLetgo HiLetgo 12V 8 Channel Relay Module with Optocoupler High and Low Level Trigger 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level TriggerEMSea EMSea 2Pcs Optical Isolator Module Voltage to Current Converter Module Input Optoisolator 12V 80KHz 1 Channel PC817 EL81 It is made of premium material, which is not easy to wear and comfortable to touch.SECFOU SECFOU 12pcs Relay Module High Precision Relay Parts Optocoupler Isolation Expansion Board Split Charge for Electronics Expandable design: the expansion board design allows for easy connectivity and expansion with other devices,roller shuttOmabeta Omabeta 1PCS 5 Axis CNC Control Board, 32-bit STM Microcontroller with Optocoupler Isolation, PWM Output, USB Motion Con BROAD COMPATIBILITY: The control board set boasts extensive compatibility, it supports for Windows XP, for WIN7, for WINGeneric ACPL-C870 HCPL-C870 SMD optocoupler Isolator optocoupler Driver chip C870 SOP-8 Package contents:ACPL-C870 SOP-8(1pieces)Jimcat star 5Pcs 5V 8 Channel Relay Shield Interface Board with Optocoupler 5Pcs 5V 8 Channel Relay Module Interface Board with OptocouplerSHOWERORO SHOWERORO 12pcs State Relay Module High Precision Electromagnetic Relay Optocoupler Isolation for Flexible Triggering an Expansion capability: designed as an expansion board for easy integration with other equipment,roller shutter motor relaShutao 3PCS PC817 4 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module Onboard 4 channel 817 are independent: can achieve different voltage control at then same timeReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiShutao Shutao 5PCS PC817 2 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module Onboard 2 channel 817 are independent: can achieve different voltage control at then same timeReland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiGump's grocery Gump's grocery PC817 4-Channel Voltage Converter Module Optocoupler Isolation Driving Module 1.Driving Port Signal Voltage:3.6-24V