We are honoured and delighted that David Cao left such kind feedback on our Reviews.io platform.The full review reads “The Chinese often say that encounter is a fate. I met Coltraco at the end of 2015. With the efforts of both parties, we have made breakthroughs in various fields in China. In this special period (covid-2019), I hope we can get through the difficulties together for a better future.”
![](https://coltraco.com/wp-content/uploads/2024/07/Website-Banner-7.jpg)
Brand New Dual Certification Liquid Level Indicator: Portalevel® Intrinsically Safe
As one of the world’s first innovative portable ultrasonic liquid level indicator with a brand new dual certification, Coltraco Ultrasonic’s Portalevel® INTRINSICALLY SAFE (Portalevel® IS) meets stringent safety standards for explosive atmospheres, making it suitable for use globally in both Zone 1 and Zone 2 hazardous areas. The device measures liquid levels contained in fire suppression cylinders and other types of tanks stored in hazardous zone environments.