technical parameter
Name: Sentinel
Colour: Black paint
Material: 316 stainless steel
Specification: full length 80mm, whistle diameter 13mm
Characteristic
Pea-free design, easy to blow, up to 130 decibels;
The whistle surface is polished and painted with smooth handle and high user experience.
It is made of 316 stainless steel which is superior to food grade. It is safer and safer to use.
Sound chamber is not afraid of dirt and water. It still performs well in all kinds of harsh environments.
