B49X color boiler water level gauge 

 Two-color indicator is one of the most advanced water level meter, intuitive and reliable. It is used for industrial steam boilers and steam boiler water level display. 
 2. The product structure is simple and reasonable, easy to wash. 
 3. Installation and use does not require any adjustment. 
 4. Use of non-water quality impacts, water vapor interface clear. 
 5. Outage with other light sources can still distinguish the water level. 
 6. Indicator light lamp life long.