Intelligent Electricity Consumption Indicator - 50-300V - Current and Voltage - Closed Transformer

【Multifunctional Doorbell】This unique wireless doorbell will not only make you miss all your visitors, but also all other electrical devices. Plug the wireless doorbell into the wall, then plug the device into the device as usual, it will not take your socket interface, and the appearance is small and exquisite, it is the first choice for home use. 【300m long distance】This waterproof wireless outdoor doorbell has a transmitter and a receiver, open area up to 300m. Even if there are many obstacles (doors, walls), the doorbell can be heard in time. Don't worry about missing visitors. The ringtones will not interfere with other devices in or near your home.Suitable for houses, apartments, villas, offices, shops, warehouses, hotels, factories, etc.【36 ringtones and 4 volumes】 High-quality speakers, using the most stable music chip, built-in 36 melodies, creating clear and pure sound. 4 adjustable volume levels from 0dB to 100dB, easy to choose and adjust your favorite sound, when the bell rings, you can easily hear it at home. When you press the transmitter, a blue light will flash, which is very friendly for the hearing impaired.【EASY INSTALLATION & MEMORY FUNCTION】Simply plug the receiver into the socket and use the included wristband to fix the battery-operated transmitter on the exterior wall, the installation is very simple, even a person who lives alone can easily install it.After a power outage, the wireless doorbell will remember your last melody and volume.【Windproof and Waterproof】The waterproof outdoor wireless doorbell is made of high-quality ABS material, which has excellent fire and flame resistance, and can work between -22°F and 158°F.