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IO15B01 6A DC 3V 3.3V 3.7V 5V Electronic Switch Latch Bistable Self-locking Trigger Module for Solar Panel

IO15B01 6A DC 3V 3.3V 3.7V 5V Electronic Switch Latch Bistable Self-locking Trigger Module for Solar Panel

$19.09

DD0603SA/B Auto Buck-Boost DC DC 0.9-6V to 3V 3.3V 3.7V Boost-Buck Converter Board Power Supply Module

DD0603SA/B Auto Buck-Boost DC DC 0.9-6V to 3V 3.3V 3.7V Boost-Buck Converter Board Power Supply Module

$19.09

OPMSA04 OPMSB08 OPMSC12 OPMSD16 4-16CH 5A PLC Signal Amplifier Board – DC 3.3-24V NPN/PNP Logic Level Converter with Opto-Isolation & MOS Output for Industrial Automation

OPMSA04 OPMSB08 OPMSC12 OPMSD16 4-16CH 5A PLC Signal Amplifier Board – DC 3.3-24V NPN/PNP Logic Level Converter with Opto-Isolation & MOS Output for Industrial Automation

$4.85

DD0505MD 5V Boost Converter – 2.8-4.5V to 5V DC-DC Step-Up Power Module for USB 18650 Power Bank ESP8266 DS18B20 LCD

DD0505MD 5V Boost Converter – 2.8-4.5V to 5V DC-DC Step-Up Power Module for USB 18650 Power Bank ESP8266 DS18B20 LCD

$3.94

AMDSG08 8CH DS18B20 Temperature Acquisition Module – RS485 Modbus RTU with ±0.5°C Accuracy for PLC SCADA Industrial Automation

AMDSG08 8CH DS18B20 Temperature Acquisition Module – RS485 Modbus RTU with ±0.5°C Accuracy for PLC SCADA Industrial Automation

$25.15

CRLD20MA 2-in-1 Battery Charger & LDO Converter – DC 5V to 4.2V 500mA Charging + 3.7V to 3.3V 250mA Step-Down for 18650 Li-Ion Li-Po

CRLD20MA 2-in-1 Battery Charger & LDO Converter – DC 5V to 4.2V 500mA Charging + 3.7V to 3.3V 250mA Step-Down for 18650 Li-Ion Li-Po

$10.00

LD3080SA 20W Constant Current LED Driver – DC 3.7-30V PWM Dimming Module with 330/500/660/910mA Selectable Output for Flashlight Headlight

LD3080SA 20W Constant Current LED Driver – DC 3.7-30V PWM Dimming Module with 330/500/660/910mA Selectable Output for Flashlight Headlight

$10.00

NDUB22TA 3A Buck-Boost Converter – DC 3-23V to 3.3V/5V/12V Adjustable Step-Up Down Voltage Regulator with 93% Efficiency for Solar Battery ESP32

NDUB22TA 3A Buck-Boost Converter – DC 3-23V to 3.3V/5V/12V Adjustable Step-Up Down Voltage Regulator with 93% Efficiency for Solar Battery ESP32

$5.45

AD22B04 4CH DTMF Relay Module – MT8870 Phone Voice Remote Control Switch with 8 Modes 10A Output for Smart Home LED Motor

AD22B04 4CH DTMF Relay Module – MT8870 Phone Voice Remote Control Switch with 8 Modes 10A Output for Smart Home LED Motor

$16.06

8/16/24/32/48CH Multifunction RS485 Remote IO Module – NPN/PNP DI-DO Expansion Board with DIN Rail & Modbus RTU for PLC Industrial Automation

8/16/24/32/48CH Multifunction RS485 Remote IO Module – NPN/PNP DI-DO Expansion Board with DIN Rail & Modbus RTU for PLC Industrial Automation

$11.52

IO32G01_NC DC 12V ACC Trigger Delay Power-Off Relay Module – 20A Timing Switch for Dashcam Stereo Ambient Light Car Accessories

IO32G01_NC DC 12V ACC Trigger Delay Power-Off Relay Module – 20A Timing Switch for Dashcam Stereo Ambient Light Car Accessories

$4.55

IO32G01 20A DC 12V Car ACC Trigger Delay Power-Off Relay Module – Timing Switch for Dashcam Stereo Ambient Light Vehicle Accessories

IO32G01 20A DC 12V Car ACC Trigger Delay Power-Off Relay Module – Timing Switch for Dashcam Stereo Ambient Light Vehicle Accessories

$4.24

PS58F01 10A Battery Charger Discharger Module – 0-60V Auto Cut-Off Undervoltage Overvoltage Protection Board for 12V/24V/36V/48V Lead-Acid UPS DIY

PS58F01 10A Battery Charger Discharger Module – 0-60V Auto Cut-Off Undervoltage Overvoltage Protection Board for 12V/24V/36V/48V Lead-Acid UPS DIY

$5.45

OP22B01 AC Voltage Detection Module – 110/220V Mains Power ON/OFF Sensor with 3-24V NPN/PNP Output for Arduino ESP8266 PLC STM32

OP22B01 AC Voltage Detection Module – 110/220V Mains Power ON/OFF Sensor with 3-24V NPN/PNP Output for Arduino ESP8266 PLC STM32

$3.03

RYR408B 8CH 10A RS485 Relay Module – DIP Switch Configurable Modbus RTU PLC Remote IO Board with 8 Commands for Industrial Automation

RYR408B 8CH 10A RS485 Relay Module – DIP Switch Configurable Modbus RTU PLC Remote IO Board with 8 Commands for Industrial Automation

$19.09

DNUNA16 6AI 6DI 4DO RS485 I/O Expansion Board for Arduino UNO R3 DC 7-30V Analog Data Acquisition Module 0-20mA 4-20mA 0-10V

DNUNA16 6AI 6DI 4DO RS485 I/O Expansion Board for Arduino UNO R3 DC 7-30V Analog Data Acquisition Module 0-20mA 4-20mA 0-10V

$20.61

Schumann Resonator Generators

SMKYF34 4CH 0.01-500KHz High-Precision 7.83 Resonance Generator Ultra Low Frequency OLED Generator Resonator Meditation Sleep Aid Device

SMKYF34 4CH 0.01-500KHz High-Precision 7.83 Resonance Generator Ultra Low Frequency OLED Generator Resonator Meditation Sleep Aid Device

$25.15

SFWSC08 8CH 250mm Schumann Resonance Generator – 25 Frequencies 7.83Hz Sleep Aid Device with 0.01-100000Hz Adjustable for Meditation Relaxation

SFWSC08 8CH 250mm Schumann Resonance Generator – 25 Frequencies 7.83Hz Sleep Aid Device with 0.01-100000Hz Adjustable for Meditation Relaxation

$25.76

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

$5.45