· adapts a power is simple and easy to installuses a SI4438 module with strong emission power and high reception sensitivity
· adopts the 470Mhz frequency band, with FSK encoding, strong anti-interference ability, strong round-shooting capability, and long transmission distance
· adopts an advanced filtering algorithm that can set the filtering rules and greatly avoid channel collisions
· shell is made of fireproof ABS engineering plastic, beautiful and generous, safe and durableuse
· environment: temperature: -10℃ ~ + 55; relative humidity: <= 95%, non-condensationwireless
· communication distance: <= 7 0 0 m and can be used in superposition
· dimension: 130mm 118mm 48mm
· power supply mode: CR17450
· time of battery use in alarm state: 65 hours