Cheap And Discounts 2/4/8/16 channels PT100 K/S/R/B/N/E/J/T type Thermocouple Sensor RS485 Modbus Output Temperature Acquisition Module Wholesale. Buy Directly From Merchant ComWinTop Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.