Cheap And Discounts 10PCS DS18B20 Waterproof temperature probe 18B20 TO-92 Chip Temperature Sensor IC Hall Sensor 3V-5.5V For Temperature Control Wholesale. Buy Directly From Merchant XLZMYQ Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.