new Zealand Electronic whistle

 1、Size: length 148.6mm±1mm, diameter 24.8mm±1mm;  2、Mass: ≤95g;  3, with warning whistle, lighting function;

Product Description

Technical parameters:
 1、Size: length 148.6mm±1mm, diameter 24.8mm±1mm;
 2、Mass: ≤95g;
 3, with warning whistle, lighting function;
 4、Working time: ≥2h;
 5, charging time: <4h;
 6, sound pressure: ≥ 120dB (A);
 7, shell protection grade: IP54;
 8, environmental adaptability: -20 ℃ ± 2 ℃ ~ +60 ± 2 ℃.