Product specifications EPIRB Samyung September 406 EPIRB Samyung September 406 Sep-406 EPIRB accordance with CCIR, RTCM, COSPAS-SARSAT and GMDSS performance standards Imo Transmission With Frequency of 406 MHz / 121.5 MHz. Sep-406 EPIRB, The Submersible Designed To Be And To Ease of Installation, Has Hydraulic Release Mechanism To Release Automatically By Water Pressure. Fully GMDSS Compliant Compact and Lightweight Automatic Float Free Housing Really, Water Proofing Housing Material: Plastic Abs Floodlight: 20Times Per Minute (Min. 0.75 Candela) Temperature: Operating-20 & Deg; C ~ + 55 & Deg; C Battery: Lithium - 4 Years of Service Life Delivery Time: 440Ms Repetition: The 50s & plusmn; 5% Weight: 1 Kg