TDS & EC device for measuring salt content in water (with case)

Water salt percentage measuring device used to know the degree of salinity in water with a protective case to protect and preserve it. Available color: white. The shipment includes only one device. General note: 1- You can save and benefit from the shipping cost by purchasing other needs with this order with the same shipping cost... but in one order. 2- The buyer has the right to return the purchased item within 3 days from the date of receipt, and bears the full return shipping costs. 3- When receiving the returned item in good condition as sent, only the value of the item will be refunded, excluding shipping costs. 4- In case of returns or exchanges, the buyer bears the postal costs.