hi there, we need to monitor 8 seperate cables with up to 15A DC current flowing through them. We need to acquire the data using modbus rtu over RS485. We would need an initial few sample units for testing. Then if they work as needed, we will be placing an order for ~950 before Jan 2022. We would also need a quote for 950 units as I assume the price is a lot lower for volume. The device needs to be able to withstand temperature of over 45 deg C and also be resistant to dust. please contact as well as the ****associated with this account.