TANK LEVEL ALARM gives a bright flashing LED and a loud buzzer if liquid level gets too high or low.

• Always on duty because it uses uninterruptible battery power. Battery lasts for years.
  
  
• Loud warbling tone cuts through the loudest industrial noise.
  
  
• Rugged. Built for rough, wet environments.
  
  
• Reliable float switch is protected inside a pipe.
  
  
• Safe and convenient. 9 volt battery power.
  
  
• High level alarm or low level alarm with reversible float switch.
  
  
• No wetted metal parts.
  
  
• Low battery alert is built in.
  
  
• Different behaviors built-in.