MSP-300 R Wireless Outdoor Siren with Acoustic and Visual The MSP-300 wireless outdoor siren is designed for use with PERFECTA control panels (WRL models) and the MTX-300 controller operating at 433 MHz. The siren employs a modern SPIRIT1 radio system with optimized power management, ensuring long operation in harsh conditions. Trouble-free operation of the MSP-300 is also ensured by a highly efficient BAT-ER-3.6 battery, which is used in specialized applications, including military and medical. Compatible with PERFECTA 16-WRL, PERFECTA 32-WRL, PERFECTA 32-WRL LTE, PERFECTA-IP 32-WRL, and PERFECTA-T 32-WRL control panels and the MTX-300 controller; optical and acoustic signaling are independently triggered via radio; optical signalling: super bright LEDs; acoustic signalling: piezoelectric transducer; ability to trigger one of several acoustic signals; advanced radio system ensuring optimized communication with low power consumption; remote configuration; powered by an efficient BAT-ER-3.6 battery with a capacity of 13 Ah and a wide range of operating temperatures; operation in temperatures from -40°C to +55°C; sabotage protection against opening the housing and tearing off from the surface; .