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3Pcs 1Channel AC Optocoupler Module 220V Voltage Detect Optocoupler Isolation Microcontroller TTL Level 3V-5V
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  • $16.63 
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  • $15.13 - $16.63
2 Channel 5V Low Level Trigger Solid State Relay Module with Fuse, 2 Way 250V 2A for Industrial Control Applications
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  • $16.85 
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  • $15.35 - $16.85
5Pcs Voltage to PWM Module 0-5V 0-10V to 0%-100% V-PWM Module Board Voltage to PWM Signal Converter Voltage Converter Module
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  • $18.13 
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  • $16.63 - $18.13
5Pcs 5V 700mA Power Supply Module 3.5W AC-DC Isolation Switch Power Module 220V to 5V Buck Converter Board Module
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  • $16.63 
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  • $15.13 - $16.63
First picture~CO2 Detector Meter Air Analyzer Gas Detector Carbon Dioxide Sensor Co2 Monitor 5000ppm Temperature Humidity()
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  • $101.49 
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220V AC-DC Isolated Switching Power Supply Module 220V to Low-Voltage Mini Step-Down Converter with Overcurrent & Short Circuit Protection (220V to 9V 500mA)
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  • $23.03 
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  • $21.73 - $23.03
220V AC-DC Isolated Switching Power Supply Module 220V to Low-Voltage Mini Step-Down Converter with Overcurrent & Short Circuit Protection (220V to 5V 700mA)
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  • $23.03 
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  • $21.73 - $23.03
24V to 5V 10W 2000mA DC to DC Isolated Power Module 5v/12v/15v/24v DCDC Switching Power Module (10D2405A,2 Pcs)
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  • $32.39 
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  • $31.09 - $32.39
24V to 5V 10W 2000mA DC to DC Isolated Power Module 5v/12v/15v/24v DCDC Switching Power Module (10D2405B,5 Pcs)
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  • $65.14 
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  • $63.84 - $65.14
220V AC-DC Isolated Switching Power Supply Module 220V to Low-Voltage Mini Step-Down Converter with Overcurrent & Short Circuit Protection (220V to 12V 500mA)
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  • $23.03 
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  • $21.73 - $23.03
24V to 5V 10W 2000mA DC to DC Isolated Power Module 5v/12v/15v/24v DCDC Switching Power Module (10D2405A,5 Pcs)
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  • $64.05 
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  • $62.75 - $64.05
3pcs Digital Barometric Pressure Sensor Module Air Pressure Module Liquid Water Level Controller Board 0-40KPa 3.3V-5V
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  • $21.99 
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1pc MODBUS RS485 NH3 Sensor - with Waterproof Aviation Connector
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1pc MODBUS RS485 NH3 Sensor - with Waterproof Aviation Connector

Limited time offer, ends 09/30

  • Model #: CJJGZMC7AZ-0821-209
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  • $448.99 
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5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board
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  • $16.63 
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  • $15.13 - $16.63
3pcs AC Overcurrent Protection Sensor Module, 0.35 A Current Transformer with Relay Output, 5 V Supply
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  • $16.80 
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  • $15.30 - $16.80
5V Power On Time Delay Relay Module, Adjustable Delay Timer Circuit Board, for Automation Projects
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  • $16.48 
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  • $14.98 - $16.48
12V Power On Time Delay Relay Module, Adjustable Delay Timer Circuit Board, for Automation Projects
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  • $15.06 
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  • $13.56 - $15.06
5Pcs 12V 300mA Power Supply Module 3.5W AC-DC Isolation Switch Power Module 220V to 12V Buck Converter Board Module
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  • $16.63 
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  • $15.13 - $16.63
DC 6-30V Timer Delay Triggered Relay Module 1 Channel Way 5V Multifunction Switch Control Relay Cycle Timer Digit LED Display Micro USB
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  • $14.87 
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  • $13.37 - $14.87
5PCS AC DC Converter Module AC 220V to 12V 400mA 4.5W Buck Converter Step Down Power Supply Module Isolated Switching Converter
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  • $16.61 
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  • $15.11 - $16.61
5PCS AC DC Buck Converter Step Down Module AC-DC 220V to 5V 700mA 3.5W Isolated Switching Power Supply Step Down Buck Converter
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  • $16.61 
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  • $15.11 - $16.61
24V to 5V 10W 2000mA DC to DC Isolated Power Module 5v/12v/15v/24v DCDC Switching Power Module (10D2405A,1 Pcs)
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  • $20.33 
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  • $19.03 - $20.33
M12 Laser Collimator Photoelectric Switch M12JG-30N1 Laser Sensor Switch Semi Waterproof DC 20 Meters Distance Normally Open B-NPN-O Red Light
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  • $20.71 
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  • $19.21 - $20.71
4pcs ACS712ELC Current Sensor Module 30A Amps Amperage Range Highly Sensitive Humidity High Efficient Compatible with Arduino
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  • $33.98 
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2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min
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  • $16.63 
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  • $15.13 - $16.63
5V Photosensitive Relay Module with LDR Photoresistor Sensor for Light Detection, Smart Home Automation DIY Projects
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  • $15.79 
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  • $14.29 - $15.79
2pcs Soil Moisture Sensor Plant Watering Alarm Humidity Moisture Sensor Compatible with Arduino
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  • $33.98 
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2Pcs AM2301A Digital Temperature and Humidity Sensor Module AM2301 Capacitive Single Bus High Precision Sensor with 25CM Cable
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  • $16.50 
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  • $15.00 - $16.50
2PCS 2 Channel Automatic Power Switching Module Automatic Emergency Power Supply Module Switch Dual Power Supply Module AC 90-240V 10A Backup Battery Switch Controller Module
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  • $15.23 
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  • $13.73 - $15.23
DP30V5A Digital Adjustable CNC DC Stabilized Power Supply Step-Down Module 0-32V Voltage Regulator Buck Power Converter with LCD Display
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  • $50.61 
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  • $49.11 - $50.61
0-5A AC Current Detection Sensor Module Switch Output (DC 5V, Green)
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0-5A AC Current Detection Sensor Module Switch Output (DC 5V, Green)

Limited time offer, ends 09/27

  • Model #: 20260830ZP54C5JS
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  • $15.88 
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  • $14.58 - $15.88
1pc Grove - TDS Sensor/Meter for Water Quality (Total Dissolved Solids)
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1pc Grove - TDS Sensor/Meter for Water Quality (Total Dissolved Solids)

Limited time offer, ends 09/30

  • Model #: CJJGZMC7AZ-0821-223
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  • $73.98 
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