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R422B02 1Mbps RS422/RS485 Shield for Arduino – Full-Duplex Long-Distance Serial Transceiver with UART PWM GPIO for UNO MEGA2560 NANO
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R422B02 1Mbps RS422/RS485 Shield for Arduino – Full-Duplex Long-Distance Serial Transceiver with UART PWM GPIO for UNO MEGA2560 NANO

R422B02 1Mbps RS422/RS485 Shield for Arduino – Full-Duplex Long-Distance Serial Transceiver with UART PWM GPIO for UNO MEGA2560 NANO
$10.00
3.7V to 5V/6V/9V/12V DC-DC Boost Converter – Step-Up Voltage Regulator Module DDEN12MB_3400 for 18650 Li-ion Li-Po Battery Portable Power DIY
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3.7V to 5V/6V/9V/12V DC-DC Boost Converter – Step-Up Voltage Regulator Module DDEN12MB_3400 for 18650 Li-ion Li-Po Battery Portable Power DIY

3.7V to 5V/6V/9V/12V DC-DC Boost Converter – Step-Up Voltage Regulator Module DDEN12MB_3400 for 18650 Li-ion Li-Po Battery Portable Power DIY
$6.97
R4PIN08 8CH Multifunction RS485 IO Core Board – 2.54mm Pin Configurable Digital Input Output Module Modbus RTU for PLC HMI Remote IO Expansion

R4PIN08 8CH Multifunction RS485 IO Core Board – 2.54mm Pin Configurable Digital Input Output Module Modbus RTU for PLC HMI Remote IO Expansion

R4PIN08 8CH Multifunction RS485 IO Core Board – 2.54mm Pin Configurable Digital Input Output Module Modbus RTU for PLC HMI Remote IO Expansion
$31.21
SD29AJTC MPPT Solar Charge Controller Module 7-28V to 1.2-25V DC-DC Buck Battery Charger 1A 2A 4A for Li-ion LiPo LiFePO4 LTO

SD29AJTC MPPT Solar Charge Controller Module 7-28V to 1.2-25V DC-DC Buck Battery Charger 1A 2A 4A for Li-ion LiPo LiFePO4 LTO

SD29AJTC MPPT Solar Charge Controller Module 7-28V to 1.2-25V DC-DC Buck Battery Charger 1A 2A 4A for Li-ion LiPo LiFePO4 LTO
$5.45
N467D01 RS485 Modbus RTU DC Motor Driver – 8-30V 1-2A Forward Reverse Stop Delay Controller with 497-Day Timer for PLC Automation
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N467D01 RS485 Modbus RTU DC Motor Driver – 8-30V 1-2A Forward Reverse Stop Delay Controller with 497-Day Timer for PLC Automation

N467D01 RS485 Modbus RTU DC Motor Driver – 8-30V 1-2A Forward Reverse Stop Delay Controller with 497-Day Timer for PLC Automation
$6.97
N4DIG08 8CH Modbus RTU Controller Module – UART/RS485 PLC Expansion Board with Digital I/O for Arduino UNO MEGA NANO STM32 AVR PIC

N4DIG08 8CH Modbus RTU Controller Module – UART/RS485 PLC Expansion Board with Digital I/O for Arduino UNO MEGA NANO STM32 AVR PIC

N4DIG08 8CH Modbus RTU Controller Module – UART/RS485 PLC Expansion Board with Digital I/O for Arduino UNO MEGA NANO STM32 AVR PIC
$5.76
ND9024TA DC 10V-90V to 24V 12V 5V 2.5A Buck Module High Voltage Regulator for Electric Vehicle Battery Solar System Power Supply Converter

ND9024TA DC 10V-90V to 24V 12V 5V 2.5A Buck Module High Voltage Regulator for Electric Vehicle Battery Solar System Power Supply Converter

ND9024TA DC 10V-90V to 24V 12V 5V 2.5A Buck Module High Voltage Regulator for Electric Vehicle Battery Solar System Power Supply Converter
$5.45
SHA9D01 SHT30 Temperature Humidity Sensor Module RS485 TTL Modbus RTU Adapter Board for Arduino UNO ESP32 Weather Station

SHA9D01 SHT30 Temperature Humidity Sensor Module RS485 TTL Modbus RTU Adapter Board for Arduino UNO ESP32 Weather Station

SHA9D01 SHT30 Temperature Humidity Sensor Module RS485 TTL Modbus RTU Adapter Board for Arduino UNO ESP32 Weather Station
$5.15

Relay
R4D3B16 16CH RS485 Modbus RTU Relay Module – DC 12V/24V Multifunction IO Expansion Board with 10A Output for PLC HMI Smart Home

R4D3B16 16CH RS485 Modbus RTU Relay Module – DC 12V/24V Multifunction IO Expansion Board with 10A Output for PLC HMI Smart Home

R4D3B16 16CH RS485 Modbus RTU Relay Module – DC 12V/24V Multifunction IO Expansion Board with 10A Output for PLC HMI Smart Home
$28.18
IO34H02 AC Time Delay Relay Module – 110V/120V/220V 50-60Hz DIP Switch Programmable Timer for Light Fan Pump Automatic Door Control

IO34H02 AC Time Delay Relay Module – 110V/120V/220V 50-60Hz DIP Switch Programmable Timer for Light Fan Pump Automatic Door Control

IO34H02 AC Time Delay Relay Module – 110V/120V/220V 50-60Hz DIP Switch Programmable Timer for Light Fan Pump Automatic Door Control
$4.24
N4ROA01 3A RS485 Relay Module – Micro Power Modbus RTU 1-Channel Controller for Home Automation & PLC Expansion

N4ROA01 3A RS485 Relay Module – Micro Power Modbus RTU 1-Channel Controller for Home Automation & PLC Expansion

N4ROA01 3A RS485 Relay Module – Micro Power Modbus RTU 1-Channel Controller for Home Automation & PLC Expansion
$4.55
10A 20A 30A DC 12V 24V Brushed Motor Overload OveDC 12V 24V Power Brurcurrent Short Circuit Protector Forward Reverse Controller IO57E02 IO58F02

10A 20A 30A DC 12V 24V Brushed Motor Overload OveDC 12V 24V Power Brurcurrent Short Circuit Protector Forward Reverse Controller IO57E02 IO58F02

10A 20A 30A DC 12V 24V Brushed Motor Overload OveDC 12V 24V Power Brurcurrent Short Circuit Protector Forward Reverse Controller IO57E02 IO58F02
$6.97
N4I6N06 DC 12V 24V 6CH 0-20MA 4-20mA Analog Input 4CH NPN Digital Input 6CH 10A Relay Output RS485 Modbus RTU IO Module

N4I6N06 DC 12V 24V 6CH 0-20MA 4-20mA Analog Input 4CH NPN Digital Input 6CH 10A Relay Output RS485 Modbus RTU IO Module

N4I6N06 DC 12V 24V 6CH 0-20MA 4-20mA Analog Input 4CH NPN Digital Input 6CH 10A Relay Output RS485 Modbus RTU IO Module
$20.61
T73 Plug-in Relay Module – RS485 Modbus RTU Remote IO Controller with Momentary Latching Interlock Delay Switch for DIY Smart Home RYN404E RYN408F

T73 Plug-in Relay Module – RS485 Modbus RTU Remote IO Controller with Momentary Latching Interlock Delay Switch for DIY Smart Home RYN404E RYN408F

T73 Plug-in Relay Module – RS485 Modbus RTU Remote IO Controller with Momentary Latching Interlock Delay Switch for DIY Smart Home RYN404E RYN408F
$16.06
UD23A08 8-Channel Serial Relay Controller – USB/TTL/RS232 Multi-Voltage Smart Switch for PLC Automation & Industrial Control

UD23A08 8-Channel Serial Relay Controller – USB/TTL/RS232 Multi-Voltage Smart Switch for PLC Automation & Industrial Control

UD23A08 8-Channel Serial Relay Controller – USB/TTL/RS232 Multi-Voltage Smart Switch for PLC Automation & Industrial Control
$17.58
DR55B01 Flip-Flop Latch Relay Module – DC 5-24V 2A Motor Reversible Polarity Switch Self-Locking Bistable Reverse Polarity Controller

DR55B01 Flip-Flop Latch Relay Module – DC 5-24V 2A Motor Reversible Polarity Switch Self-Locking Bistable Reverse Polarity Controller

DR55B01 Flip-Flop Latch Relay Module – DC 5-24V 2A Motor Reversible Polarity Switch Self-Locking Bistable Reverse Polarity Controller
$3.94

Schumann Resonator Generators
SMLDA01 0.01Hz-30kHz Adjustable Schumann Resonance Generator – 7.83Hz Ultra-Low Frequency Pulse Audio Resonator for Sleep Aid Meditation Relaxation

SMLDA01 0.01Hz-30kHz Adjustable Schumann Resonance Generator – 7.83Hz Ultra-Low Frequency Pulse Audio Resonator for Sleep Aid Meditation Relaxation

SMLDA01 0.01Hz-30kHz Adjustable Schumann Resonance Generator – 7.83Hz Ultra-Low Frequency Pulse Audio Resonator for Sleep Aid Meditation Relaxation
$22.12
SMFDB01 7.83Hz Pure Sine Wave Schumann Resonance Generator – Earth Frequency Signal Booster for Sleep Aid, Meditation & Relaxation

SMFDB01 7.83Hz Pure Sine Wave Schumann Resonance Generator – Earth Frequency Signal Booster for Sleep Aid, Meditation & Relaxation

SMFDB01 7.83Hz Pure Sine Wave Schumann Resonance Generator – Earth Frequency Signal Booster for Sleep Aid, Meditation & Relaxation
$5.45