16-Channel Digital Input Isolated Module with RS-485 and Nixietube 3-Ch 30KHz

10DO Isolated IO Module with Isolated RS-485 and LED Indicators

8DI/8DO Isolated IO Module with isolated RS-485 and 2-Ch 30KHz PULSE Counter

AMDOC16 DC 7-25V 16DO RS485 3KV Isolated Communication Switch Module Digital

6DI/6DO Isolated IO Module with Isolated RS-485 and LED Indicators DMB-660

8DI/2DO Isolated IO Module with Isolated RS-485 and LED Indicators DMB-820

8DI/8DO Isolated IO Module with isolated RS-485 and LED indicators

Industrial 4-Ch PWM Output Module Modbus RTU Protocol Isolated RS485 Interface