ExpDoor Bell, Sakeye Smart Temperature Wireless Waterproof Doorbell @ Amazon

【LONG WIRELESS RANGE & SELF-POWERED】Sakeye wireless doorbell operated range up to 1000ft / 300m in the open area, ensures you to hear and answer the doorbell in time. The receiver need to plug into a power outlet, the button is SELF-POWERED, no battery required.

【EASY TO INSTALL & THERMOMETER】Simply plug the receiver into a power outlet and use double-sided tape to secure it to the wall.It will automatically detects the ambient temperature when plug in the receiver, and the real-time temperature will be displayed. More user-friendly, press the button to choose degrees Celsius and Fahrenheit, which suits your living habits. Doorbell and thermometer combo.

【38 RINGTONES & WIDELY APPLIED】The receiving bell has 38 tones and 4 adjustable volumes ranging from 0 to 100 dB. You'll never miss the sound even if you're listening to high volume music. On the contrary, if you got tired, just set the volume to silence. You can program each button to a different tone so you know where your guests are.A perfect wireless doorbell kit for home, apartment, school, villas, office, warehouses, hotel, factory, hospital and more.

【WATERPROOF & MEMORY】IP44 Waterproof and Dustproof rating. Sakeye doorbell push button could works under even harshest weather conditions like rainstorms, direct sun exposure and frost. Remembers your last melody and volume level after a power outage， no need to reset to your previous settings.

【SATISFACTION GUARANTEED】Our Sakeye wireless doorbell are certified with CE, RoHs, FCC. We are committed to serving customers with reliable quality products, if you are not satisfied with your purchase, please contact us for help. At Sakeye, zero risk purchase is for every customer's smiles.