Nysen SA-25F 433MHz Wireless Doorbell System
Stay connected and never miss a visitor with this wireless doorbell system. Featuring a high-volume 126dB chime and a robust 433MHz wireless signal with up to 150m range, it delivers clear alerts anywhere in your home or office. Easy to install, energy-efficient with a standby current under 5mA and compatible with 100~240V mains, this transmitter-receiver duo is the smart, reliable way to announce every arrival.