Power: 12V/AC 
    Signal Input: RS485
  - Medical gas alarm system for monitoring the medical gases pressure. 
   - With self-test reset button which can detect whether the system is in a good condition.
   - Press he reset button can stop the alarming sound. 
   - There are three types of indicators to show the gas pressure states
   - Gas alarm from 1gas to 7 gases. 
   - It can be mounted either onto or into the wall.