In case of discrepancies between the product model and displayed images, the model number shall prevail. For specific product photos, kindly reach out to us, and we will arrange for photographs to be taken at our warehouse for confirmation.
With 14 shared warehouses worldwide, we kindly ask for your understanding that accurate responses may occasionally take several hours. Rest assured, we will address your inquiries as promptly as possible."

"Please contact us for the best price. Email: [mailto:ZHDJIANGJIANG1@gmail.com]

Why Engineers Trust ADAM-4520:
⚡ 1.2km Signal Reach
Extend RS-232 devices to remote PLCs/SCADA systems without signal loss

🛡️ Battle-Ready Protection
2500V isolation • 15kV ESD surge protection • -40°C to 85°C operation

🔧 5-Minute Deployment
DIN-rail clip • Auto-baud detection • Zero-configuration wiring

🌍 Global Compliance
CE, FCC, UL/cUL • RoHS • EMI/RFI immunity per EN 55022

Crushing Typical Pain Points:
✅ Eliminates data corruption in high-noise areas (motors/VFDs)
✅ Saves 80% vs fiber-optic solutions
✅ Outlasts competitors with 10-year MTBF