US Dollar (US$)
US Dollar (US$)
Euro (€)
GB Pound (£)
Canadian Dollar (CA$)
Australian Dollar (AU$)
My Account
Log In
Register
My Account
Shopping Cart
Home
all products
Contact Us
News
My Account
Log In
0 item(s)
Categories
UART 485/232/TTL
+
RS485 Modues & relays
+
Wireless RS485/RS232 series 1
Current Voltage ADC Collector
RS485 Relays
Others
Digital Collection Module
Pressure Weight Sensor
Temperature and Humidity Transmitter Detection Sensor
RS232 Modues & relays
USB programmer
others
TTL232
ESP32 Board
Power modules
+
Others
Positive negative power modules
UPS Modules
Buck power modules
Battery Charge Board
Solar Charger modules
Boost modules
Driver Board
Boost & Buck Dual Power Modules
Analog IO Module
Voltage Signal Detection Module
Expansion Board
Others
Bistable Self-locking Electronic Switch
Signal Generator
+
series 1
DTMF Relay
Wireless Antenna
Adapter Modules
Bluetooth relay
FPGA /CPLD Development Kits
+
others
Development Boards
Downloader
RS485 DO
Wiress RF FSK Zigbee ASK
+
ASK Modules
2.4G Modules
FSK Series 1
Wireless RFID
Remote controller kits
+
Fixed Code kits
Rolling code kits
AM FM
Wireless IR
Connector Wire
Motor Driver board
Arduino kits
IO Isolation Protection Board
Timer delay relay
New Products [more]
DD2412SA 2-24V to 5V DC-DC Boost-Buck Step-up & Step-down Converter Power Supply Module for Cell phone charger
US$1.99
DD2412SA 800MA 3.3V 3.7V 5V 6V 12V 15V to 9V DC DC Boost-Buck UP&Down Converter Module for Wifi Router Instruments multimeter
US$1.99
DD2412SA 6W 2-24V/3.3V/5V/9V/12V to 6V DC-DC Boost-Buck Step UP-Down Converter Module for Motor LED Toy electrical tools
US$1.99
DD23CRTA 1S 2A DC 5-23V to 4.2V 1S Multi-Cell Li-Ion Lithium Battery Charger for Solar charging Portable device
US$2.59
DD2412SA 2-24V to 15V DC-DC Boost-Buck Step UP & Step Down Converter Module Voltage Regulator Power supply Board
US$1.99
DD2424SA 6V 10-20W DC-DC Boost Step up Converter Regulator Power Module DC board MCU Development boa
US$1.99
Home
Power modules
Voltage Signal Detection Module
Voltage Signal Detection Module
Popular
Price
Price
Bestsellers
New
Displaying
1
to
2
(of
2
products)
OP22B01 12V Output 12v 24V AC 110V 220V to 3.3V 5V 12V 24V Voltage Signal Detection Module Power ON/OFF Alarm Board for PLC RS485 IO Module
US$2.99
OP22B01 5V Output 3V3 5V AC 110V 220V to 3.3V 5V 12V 24V Voltage Signal Detection Module Power ON/OFF Alarm Board for PLC RS485 IO Module
US$2.99
Displaying
1
to
2
(of
2
products)