This is an excellent 4-channel analogue to RS485 (Modbus RTU) adaptor. It requires separate power at 8-25v. See software call description here https://ipc2u.com/articles/knowledge-base/modbus-rtu-made-simple-with-detailed-descriptions-and-examples/

This is an excellent 4-channel analogue to RS485 (Modbus RTU) adaptor. It requires separate power at 8-25v. See software call description here https://ipc2u.com/articles/knowledge-base/modbus-rtu-made-simple-with-detailed-descriptions-and-examples/

This is an excellent 4-channel analogue to RS485 (Modbus RTU) adaptor. It requires separate power at 8-25v. See software call description here https://ipc2u.com/articles/knowledge-base/modbus-rtu-made-simple-with-detailed-descriptions-and-examples/

good value for the price, resolution of the ADC 1024 I guess (10 bit) not very high but absolutely okay for the money!

good value for the price, resolution of the ADC 1024 I guess (10 bit) not very high but absolutely okay for the money!

good value for the price, resolution of the ADC 1024 I guess (10 bit) not very high but absolutely okay for the money!

very good

very good

very good

Excellent the package arrived on time, great products

Excellent the package arrived on time, great products

Excellent the package arrived on time, great products

Item is working perfectly.

Item is working perfectly.

Item is working perfectly.