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8-Channel Input Output Control Module 9600BPS RS485 TTL Controller Board with Pin N4DIG08 12V DC 10-16mA 8 Channel Input/Output 4 Input/4 Output Jumper Mode Low/High Level Input/Output

Unlock the full potential of your projects with our Input Output Control Module N4DIG08 a robust and reliable solution for data transmission and control. This 8-channel module is designed for flexibility featuring 3 jumper modes for customized... more

Evertech 1080p High Resolution 4 Bullet Security Cameras with 4 Channel 3 Amp Power Supply Distribution Box

Evertech 1080P HD Bullet Camera can be installed indoor or outdoor as it is made of durable weatherproof metal casing. Camera has excellent high resolution video quality. It is compatible with 1080p AHD/TVI/CVI/Analog Digital Video Recorders. Video... more

Speco 4 Channel High Megapixel HD-TVI DVR 3 TB HDD

Speco 4 Channel High Megapixel HD-TVI DVR 3 TB HDD Digital Video Recorder HDMI Full HD Recording more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VUK Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

Pinnaco Relay Module 4 Channel with Optocoupler Isolation Supports High and Low Trigger 5V/12V/24V - Suitable for Various Applications

This 4-channel relay module adopts premium quality 30A relay maximum load of open interface: AC250V/30A DC30V/30A. Using patch optocoupler isolation strong driving ability and stable performance; trigger current is 5mA. working voltages of module are... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VEU Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VAU Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

Aibecy 4-Channel 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100‑240VUK Plug

Item Type: Infrared CameraMaterial: ABSLCD Screen Size: Approx. 19.8 x 11.5 cm / 7.8 x 4.5 inPlug Specifications: 100-240VLCD Screen: 7in TFT LCDResolution: 1024 x 600Transmission Frequency: 2.4GHZ digital radio frequency modulationReceiving... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VEU Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

Tomshoo High/Low Trigger Relay Module 4 Channel 12V 30A Control Board Optocoupler Isolation

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

KKmoon Camera DVR Set Hard Disk Recorder 4-Channel 1080P Coaxial Analog Hard Hisk Recorder High-Definition DVR Monitoring Host

This 4CH 1080P/D1 network DVR video recorder features H.265+ video compression P2P cloud function supporting Android/iOS devices remote view anywhere anytime. It is also with functions of motion detection alarm dual-stream encoding which is widely used... more

GW High End 8 Channel Ultra 4K NVR H.265 5 Megapixel IP PoE Security Camera System - 4 x 5MP Super HD 1920p Weatherproof 2.8-12mm Lens Dome Camera 2TB HDD

Feature H.265 4K (3860 x 2160) NVR 8 Channel Full HD Max up to 4K / 8.0 Megapixel (3860 x 2160) H.265/H.264 Onvif NVR (Recording HD 4K/1920p/1536p/1080p Resolution Video per channel) 5.0 Megapixel at 2592 x 1920 pixels H.265 Ultra HD professional... more

moobody 4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100‑240VAU Plug

Item Type: Infrared CameraMaterial: ABSLCD Screen Size: Approx. 19.8 x 11.5 cm / 7.8 x 4.5 inPlug Specifications: 100-240VLCD Screen: 7in TFT LCDResolution: 1024 x 600Transmission Frequency: 2.4GHZ digital radio frequency modulationReceiving... more

Relay Module 4 Channel 30A High Low Current Relay Board With Isolation Optocoupleur 73×50×18.5mm For PLC Automation Internet Of Things

Relay Module 4 Channel 30A High Low Current Relay Board with Isolation Optocoupleur 73×50×18.5mm for PLC Automation Internet of Things Specification: Item Type: Relay Module Material: Copper Clad Laminate Module Size: Approx. 129x72x22mm/5.1 x 2.8 x... more

4-Channel 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

1000m Long Range Distance High Power 4CH Wireless Remote Control Transmitter 4 CH Channel RF 433 MHz Portable Key Fob

Specifications: Channel: 1/2/3/4/6/8CH Remote Control Distance: 0-1000M(Open area) Encode: PT2262 Frequency: 433MHz Power Supply: 1 * 12V 23A Battery (NOT included) Standby Current: 0mA Working Current: >80mA Modulation System: ASK Working Temperature:... more

EVERTECH 32 Channel H.265 High Profile Hybrid 4-in-1 (Analog/AHD/TVI/CVI) Security DVR Recorder for Surveillance System with 2TB HDD Installed and Pre-Configured

Operating system: Multi-channel real-time recording synchronously multi-channel real-time playback multi-channel multi-user network operation USB back up. Monitor quality: VGA:1080P ;HDMI:1080P Video input: 32 Channel BNC Video output: 1CH VGA 1CH HDMI... more

Meterk 4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel DC 12V 30A relay module. Output capacity: within DC 30V 30A or AC 250V 30A. Using optocoupler isolation strong -jamming capability and stable... more

Treedix Relay Module Board 4 Channel 12V Optocoupler High or Low Level Trigger PLC IOT Compatible with Arduino Smart Home

Relay Voltage: DC 12V Working Power: DC 10-16V Voltage Detection Range: DC 0-99.9V Error: +/-0.1V Timing Range: 0-999 minutes cycle Contract Load: 10A/277V AC 10A/30V DC Contract Resistance: ≤100mΩ(1A-6V DC) Mechanical Durability: >10 million times... more

Apexeon Relay Module Control Board 4 Channel 12V 30A Optocoupler Isolation High/Low Trigger Versatile and Reliable

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100‑240VEU Plug

Item Type: Infrared CameraMaterial: ABSLCD Screen Size: Approx. 19.8 x 11.5 cm / 7.8 x 4.5 inPlug Specifications: 100-240VLCD Screen: 7in TFT LCDResolution: 1024 x 600Transmission Frequency: 2.4GHZ digital radio frequency modulationReceiving... more

Htovila 4-Channel 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Features: 4-channel 12V 30A relay module. Output capacity: within 30V 30A or AC 250V 30A. Using optocoupler isolation strong anti-jamming capability and stable... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100‑240VUS Plug

Item Type: Infrared CameraMaterial: ABSLCD Screen Size: Approx. 19.8 x 11.5 cm / 7.8 x 4.5 inPlug Specifications: 100-240VLCD Screen: 7in TFT LCDResolution: 1024 x 600Transmission Frequency: 2.4GHZ digital radio frequency modulationReceiving... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VUK Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VEU Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VAU Plug

1�[Fully Digital Wireless] This infrared camera is fully digital wireless no interference which is safe to use so you can use it with confidence. 2�[LCD Display] With 7 inch TFT LCD display integrated video recorder support up to 64GB memory card... more

4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger

This is a relay module with high performance which is convenient and practical for users. Module Interface Description: 1. DC +: DC power supply positive; 2. DC -: DC power supply module negative; 3. IN: Signal input terminal(support High/Low Level... more

7in High Definition 720P Infrared Camera Wireless Surveillance Camera 4 Channel DVR Household Video Camera 100?240VUK Plug

Item Type: Infrared Camera Material: ABS LCD Screen Size: Approx. 19.8 x 11.5 cm / 7.8 x 4.5 in Plug Specifications: 100-240V LCD Screen: 7in TFT LCD Resolution: 1024 x 600 Transmission Frequency: 2.4GHZ digital radio frequency modulation Receiving... more

WPM400 - RELAY MODULE 4 CHANNEL INTERFACE BOARD HIGH CURRENT IP:5-12VDC

4 Channel Relay Module This 4channel relay interface board can control various appliances and other equipment with high current. It can be controlled directly by any microcontroller. Features Standard interface that can be controlled directly by any... more

Evertech 4 Channel Color Analog Camera Quad Processor High Quality Splitter Switch

High Resolution Display Quality NTSC/PAL 4 image split Quad image PIP image Dual image display High speed display in 4 image split Each image quality can independently adjust The image can auto switch each other 2 PIP functions and 1PIP function each... more

OWSOO Relay Module 4-channelIsolation12v 30a Rookin Relay Siuke 4-channel Yorten

4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger This is a relay module with high performance which is convenient and practical for users. 4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation... more

Htovila Relay Module 12v 30a Optocoupler Isolation 4-channelRelay D Optocoupler Rookin Relay Siuke 4-channel

4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation High/Low Trigger This is a relay module with high performance which is convenient and practical for users. 4-Channel DC 12V 30A Relay Module Control Board Optocoupler Isolation... more

433MHz 1~4 Channel RF Waterproof Wireless Remote Control Transmitter 4 Buttons

This is a fixed frequency remote control with EV1527 code 433 MHz simple pairing is an ideal choose for controlling of garage doors doors and other equipments. Features: Build in button battery providing long service time. 100% brand new and high... more

VideoSecu 4 Pack 4 Channel 12V DC 2000mA Power Adapter AC 100V-240V to DC 12V for CCTV Surveillance Security Camera 1hL

The 4 channel 12 Volt power supply is compact size high quality switch mode regulated power supply. It could be used with most 12V CCTV security cameras. The adapter could also be used for many common electronic components. It has international voltage... more

4-button Remote Controller 433 MHz with 4-channel Wireless Decoding Module

brand new and high quality Instructions: How To Programming: 1. Delete existing data: Press learning button 8 times. Response: LED flashes 7 times. 2. Learning remote code: press learning for key once twice or three times (see below). LED turns on:... more

433MHz 1~4 Channel RF Waterproof Wireless Remote Control Transmitter 4 Buttons

Build in button battery providing long service time. 100% brand new and high quality wireless remote control. Maximum control distance up to 100 meters in the open air low interference. 1/2/3/4 channel or 1 Button 2 Buttons 3 Buttons 4 Buttons for your... more