4-Channel Counter

US$10.98-12.98 / Piece

Advanced 4-Channel Di Switch Counter with Mqtt Protocol pictures & photos

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What is Advanced 4-Channel Di Switch Counter with Mqtt Protocol

Name: Advanced 4-Channel Di Switch Counter with Mqtt Protocol
Uploaded: 2026-03-28T17:24:41+08:00
Description: 4-channel DI switch detection counter, MQTT protocol, online webpage display, WiFi module WJ162 Product features: 4-channel switch input, supporting NPN and PNP inputs Each DI channel can be used as a

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Price

Min. Order Reference FOB Price

2 Pieces US$10.98-12.98 / Piece

Sepcifications

Type WiFi Module
Structure Type Measuring Core
Measuring Medium Liquid
Output Signal Type Digital Type
Production Process SemiConductor Integrated
Material Plastic
Accuracy Grade 0.1G
IP Rating IP20
Certification CE
Customized Non-Customized
Transport Package Boxed
Specification 79x69.5x25mm
Trademark wayjunr
Origin Guangdong, China
Product Features 4-Channel Switch Input, Supporting NPN and PNP in
Advantage Lowcost, Small Size, Modular Design
Quantity 99999
Typical Applications IoT Switch Signal Acquisition
Input Type Switch Input, 4-Channel (Di0~Di3).
Low Level Input<1V
High Level Input 3.5~30V

Product Description

4-channel DI switch detection counter, MQTT protocol, online webpage display, WiFi module WJ162 Product features: 4-channel switch input, supporting NPN and PNP inputs Each DI channel can be used as a counter or frequency measurement Supports MQTT communication protocol and Modbus TCP The number of ...

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Shenzhen Weijunrui Technology Co.,Ltd

Gold Member Since 2025

Audited Supplier

Main Products Analog I/O Modules, Signal Isolated Converter, Signal Conditioners, Current Splitter, ...
Year of Establishment 2011-06-13
Product Certification CE
Repeat Buyers Choice 50%~80%
Address 312 Xingyue building, Dalang, Longhua, Shenzhen, Guangdong, China
Plant Area 204 square meters

4-Channel Counter Comparison

	Advanced 4-Channel Di Switch Counter with Mqtt Protocol Contact Now	Fmf850 Low Cost Variable Area Flow Meter Metal Tube Float Flowmeter Rotameter for Gas Contact Now	Best Selling High Quality Liquid Water Flow Meter 1inch Turbine Water Flow Meter Flow Measure Flowmeter Contact Now	Quick View F600 Low Cost Flow Meter Ultrasonic Flowmeter Ultrasonic Liquid Water Meter Contact Now	Quick View Sentec Fhm500 Ultrasonic Water Meter Clamp on Flowmeter Contact Now

Transaction Info
	Advanced 4-Channel Di Switch Counter with Mqtt Protocol Contact Now	Fmf850 Low Cost Variable Area Flow Meter Metal Tube Float Flowmeter Rotameter for Gas Contact Now	Best Selling High Quality Liquid Water Flow Meter 1inch Turbine Water Flow Meter Flow Measure Flowmeter Contact Now	Quick View F600 Low Cost Flow Meter Ultrasonic Flowmeter Ultrasonic Liquid Water Meter Contact Now	Quick View Sentec Fhm500 Ultrasonic Water Meter Clamp on Flowmeter Contact Now
Price	US$10.98-12.98 / Piece	US$150.00-350.00 / Piece	US$130.00-330.00 / Piece	US$260.00 / Piece	US$150.00-250.00 / Piece
Min Order	2 Pieces	1 Piece	1 Piece	1 Piece	1 Piece
Payment Terms	T/T, PayPal	LC, T/T, PayPal, Western Union	LC, T/T, PayPal, Western Union	LC, T/T, PayPal, Western Union	LC, T/T, PayPal, Western Union
Quality Control
Product Certification	CE	CE	CE	CE	CE
Management System Certification	-	-	-	-	-
Trade Capacity
Export Markets	Domestic	-	-	-	-
Annual Export Revenue	-	-	-	-	-
Business Model	Own Brand, ODM, OEM	-	-	-	-
Average Lead Time	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Product Attributes
Specification	Type: WiFi Module; Structure Type: Measuring Core; Measuring Medium: Liquid; Output Signal Type: Digital Type; Production Process: SemiConductor Integrated; Material: Plastic; Accuracy Grade: 0.1G; IP Rating: IP20; Customized: Non-Customized; Product Features: 4-Channel Switch Input, Supporting NPN and PNP in; Advantage: Lowcost, Small Size, Modular Design; Quantity: 99999; Typical Applications: IoT Switch Signal Acquisition; Input Type: Switch Input, 4-Channel (Di0~Di3).; Low Level: Input<1V; High Level: Input 3.5~30V;	Type: Rata Flowmeter; Structure Type: Flange,Thread ,Tri-Clamp; Measuring Medium: Liquid ,Gas; Output Signal Type: RS485 or 4-20mA; Production Process: Integration; Material: Plastic and Metal; Accuracy Grade: 1.0G; IP Rating: IP67; Customized: Customized; Product Name: Metallic Rotameter Flowmeter; Medium Temperature: Normalized Type -80deg.C~+220deg.C; Range Ratio: 10:1(Special Type 20:1); Accuracy: 2.5(Special Type 1.5% or 1.0%).; Power Supply: AC220V or DC24V; Pipe Size: Water: 16~150000 L/H;Air:0.5~4000 M3/H; Output Signal: 4 ~ 20mA (with Hart Communication),Pulse; Keywords: Rotameter Flowmeter;	Type: Turbine Flowmeter; Structure Type: Integrated; Measuring Medium: Gas ,Liquid; Output Signal Type: RS485 ,4-20mA; Production Process: Integration; Material: Stainless Steel; Accuracy Grade: 0.2G; IP Rating: IP68; Customized: Customized; Product Name: Turbine Flowmeter; Medium: Water, Oil, Alcohol and Other Liquids; Connection Method: External/Internal Thread, Flange, Clamp; Power Supply: 12-24VDC; Medium Temperature: - 20 ~ 90deg.C;	Type: Ultrasonic Flowmeter; Structure Type: Clamp on; Measuring Medium: Liquid; Output Signal Type: RS485 or 4-20mA; Production Process: Integration; Material: Aluminum, Industrial Plastics; Accuracy Grade: 2%Fs; IP Rating: IP65; Customized: Customized; Product Name: Ultrasonic Flowmeter; Pipe Material: Metal /PVC, PP or PVDF Rigid Plastic Pipe; Display: 256128, LCD;* Response Time: 0.5~60s; Power Supply: 10-24V VDC;	Type: Ultrasonic Mass Flowmeter; Structure Type: Clamp on Type; Measuring Medium: Liquid; Output Signal Type: 4-20mA/RS485; Production Process: Integration; Material: Metal; Accuracy Grade: 1.5%; IP Rating: IP65; Customized: Customized; Key Words: External Card Flow Watch; Measurement Liquid: Different Clean Fluids; Power Supply: 24VDC; Temperature: 0c-50c;
Supplier Name	Shenzhen Weijunrui Technology Co.,Ltd	Chengdu Sentec Technology Co., Ltd.	Chengdu Sentec Technology Co., Ltd.	Chengdu Sentec Technology Co., Ltd.	Chengdu Sentec Technology Co., Ltd.
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