The product is a single-channel/two-channel, four-channel (4-20) mA/RS485 transmitter signal input intelligent control system developed by Henan Bosean Electric Technology CO.,Ltd. The product with high stability, high accuracy and high intelligence. The external control port is rich, users can freely choose the type of plug-in transmitter and access port, and On-site inspection and alarm can be performed with simple settings. The system has integrated sound and light alarms, provides a relay normally open control Read More