high power 100/150w multi - purpose engineering hand-control siren with 9 tones
crane alarm series
rate power : DC12V DC24V AC220V
power :100W/150W
current :7.5A/4.0A
frquency: 450Hz- 1780Hz
work temperature : 0-55℃
9 tones :public security（police security） ； fire fighting ;rescue ; engineering; transport ; protocol ;air defense; whistle 1 :whistle 2
