Analog measurement module LS-WJ21 is an A/D converter allowing you to measure analogue signal 0-10V or 0(4)-20mA. Measured out values are send to a PC or other system by means of RS232 or RS485 line.

Features:

1. Analog signal input for voltage or current, isolated RS-485/232 output
2. 12-bit AD converter, testing accuracy>0.1%
3. Can Program and calibrate modules accuracy via RS-485/232 interface
4. Signal input/output: 3000VDC Isolation
5. Wide Power supply: 8~32VDC
6. High reliability, easy programming, easy installation.
7. Can program setting module address, baud rate
8. 0-5V/0-10V/0-12V voltage signal or 4-20mA/0-20mA current signal input
9. Supports Modbus RTU protocol
10. DIN35 Rail-mounted
11. Dimension: 106.7x79.0x25.0 mm

Applications:
Signal testing/monitoring/control
RS-232/485 industrial automation control system
Industrial field signal isolation
Process Monitoring & Control
Test sensors signal
Laboratory Data Acquisition
Medical machine monitoring
4-20mA/0-5V signal acquisition

Products selection guidance:

Our Products
Our diverse product portfolio includes:

Wireless I/O Controllers – 2DI2DO wireless RTU, 4DI4DO wireless RTU and 8DI8DO wireless RTU. They will help you realise remote ON-OFF control easily. 

Wireless Analog Controllers – 2AI, 4AI, 2AO and 4AO wireless analog RTU will help you collect 4-20mA or 0-5V signal to PLC/HMI in control room by wireless.

Wireless Irrigation Controllers – Smart, water-efficient solutions for agriculture and landscaping. Our customized irrigation controller is OK to control latching valve's ON-OFF automatcally.

Central Control Glow Sticks – Dynamic wireless control for stage performances and events.

Stage LED Wristband Wireless Control Systems – Interactive and synchronized lighting for immersive audience experiences.

Why Choose Us?
✔ Innovation-Driven – We continuously develop advanced wireless technologies to meet evolving industry demands.
✔ Reliable Performance – Our solutions ensure stable, long-range connectivity with low latency.
✔ Customizable Options – Tailored wireless control systems to fit your specific needs.
✔ Expert Support – Dedicated technical assistance to ensure seamless integration and operation.

At Lensen, we empower businesses and creatives with flexible, scalable, and user-friendly wireless control solutions. Whether for industrial automation, smart agriculture, or captivating stage productions, we provide the tools to bring your vision to life—wirelessly and effortlessly.