Features Durable Plastic Shell: Features a refractory, impact-resistant plastic shell for a long service life, ensuring reliability and safety for your circuit breaker. Lightweight and Compact: With its light weight and compact size, this circuit breaker alarm switch is easy to install, making it a convenient and practical addition to your home. Simple Operation: The alarm switch offers simple and easy control, allowing for quick and hassle-free management of your circuit breaker without any complications. Stable Performance: Boasts stable performance, providing reliable and safe functionality to ensure the security of your home's electricity. Enhances Home Safety: Designed to make your home electricity safe, this circuit breaker accessory is an essential part for safeguarding your household. Specification: Condition: 100% Brand New Material: Plastic Color: As Pictures Show Rated Working Voltage: DC24-48V / AC220V Fitment: for NXB Package List: 1 * Circuit Breaker Alarm Switch Package List