Catalog > Consumer Electronics > Network Communication Wellpro Standard Modbus RTU Communication Protocol RS485 Modbus WP9065ADAM RS485 MODBUS RTU standard communication protocol -Four temperature input channel / Four optoelectronic isolation digital I/O - Input (Low level) / Output (NPN Collector) 1,243.98 ZAR inc for 1 Each 2 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE