Water Level Indicator With A Long Working Life And A Non-Contact Capacitive, H. If your water tank needs to detect the liquid level, but it cannot open a hole due to structure, a capacitive sensor can be used. Capacitive level measurement D2CS-H needs to be closed to the outer wall of the container to detect. Due to the influence of impurities, fouling, corrosion and other factors, the capacitive sensor can detect the liquid level without contacting the liquid. Usually the measured liquid contains impurities, the float sensor is not suitable for use. Water level capacitive sensor D2CS-H is a non-contact type sensor. Because of its easy installation, it is widely used in medical, household appliances and other industries. Product Features Low power consumption Easy assembly, simply locate the sensor outside the liquid container (low temp) for detection No mechanical moving components, long lifetime Small size, Low cost Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!