Temperature Adjustable Valve The mixing valve is connected to the hot and cold hoses, and is adjusted to the proper mixing ratio of hot and cold water by rotating left and right. Note: 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. Stainless Steel Automatic Tap Bathroom 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. Holes: One Hole Number of Handles: Sensor Style: Contemporary Flow Rate: 2 GPM (7.57 L/min) Faucet Material: Stainless steel Finish: Oil Rubbed Bronze Switch: No,by sensor. Touchless Faucet Bathroom Battery Type: AA X 4, DC Only Batteries are NOT included. Notice: The battery is low, the sensor light of this touchless bathroom faucet will always on. Please replace battery. Sensor faucet. Great for bathroom in spa, villa, hotel, RV, restaurant, hospital or other commercial use and home use. Detachable Deck Plate Suitalbe deck thickness: 0.78in/20mm. Hole size: 0.78in/20mm-1.18in/30mm. Threaded Rod Length: 2.7 in. All Hose Length: 19.68in/50cm. Deck plate is detachable. Keeping it for good looking is recommanded. Motion Sensor Bathroom Faucet Touchless technology design, you don't have to touch the handle before and after the using the faucet. Convenient. Easy Installation Sensor Tap Easy installation with diagram. Comes with all necessary accessories. Faucet mounting hardware, US standard thread fitting, cold/hot hoses, temperature mixer and white box are all included. All the the parts for installing are included. No need to buy extra parts. Professional Installation is recommended. Notice: Please hang and install the battery box according to the arrow direction. 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.