Wi-Fi salt level sensors for water softeners. Purchase 30 EZsalt Sensors Wholesale. Please check availability to see when this order will be shipped as lead times vary. You can also email support@ezsalt.xyz to request shipping info after placing your order. If this is your first order you may also request a live video demo through the contact page of our website or by emailing our support email. For first time orders, we offer a 6 month buy back option which means: From the date the product ships to you, we offer a buy back on any sensors you have not sold after 6 months.