Cheap And Discounts Factory Huaqingjun 12-in 12-channel Transistor Output PLC 2AI 0-10V 0-20mA RS485 QJ-24T-2AI-485 Modbus PLC for Sensor Wholesale. Buy Directly From Merchant Shop910843040 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.