The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. The thickness of the countertop or marble should not exceed 2.7 inches of the length of the faucet's threaded rod. Suitable for undermount sinks, etc. Previous page Next page 1 Save Water Bill 2 Get Softer Water Previous page Next page 1 Touchless Sensor Faucet 2 Detachable Design 3 Automatic Faucet Battery Faucet with Sensor Battery Type: AA X 4, Alkaline Battery (Not included). Notice: The battery is low, the sensor light of this touchless bathroom faucet will always on. Please replace battery. Great for bathroom in spa, villa, RV, hotel, restaurant, hospital or other commercial use and home use. Temperature Adjustable Valve: The mixing valve is installed under the sink, so please set the water temperature in advance before installation. If you want to change the water temperature after installation, you need to change it under the sink. Style: Contemporary. Flow Rate: 2 GPM (7.57 L/min). Faucet Material: Stainless steel. Holes: One Hole. All Hose Length: 19.68in/50cm. Threaded Rod Length: 2.7 in. Suitalbe deck thickness: 0.27in/8mm. Hole size: 0.78in/20mm-1.18in/30mm. Deck plate is detachable. Keeping it for good looking is recommanded. Installation Steps: 1. Disassemble the old water faucet. 2. Before installing a new faucet, please turn on the water pipe and let the water flow for a few minutes. 3. After closing the water pipe, place the new faucet body on the sink. 4. Please first install 4pcs AA alkaline batteries on the white box before fixing it on the wall. 5.Please connect the 3 hoses or power cords on the corresponding accessories (please see the installation video). 6. Turn on the water pipe switch again and place your hand in front of the sensor window to test whether the faucet is working properly.