THE DUAL TANK ALARM or two-point alarm has two adjustable float switches to provide two alarm points.  Each float switch is protected inside a float guard. Either float switch can respond to high or low liquid level since they are reversible. If either float switch is activated, a loud buzzer sounds with flashing LED. 

Easily adjust able depth with no tools – just loosen the thumbscrew and slide either level probe to the desired depth.  Each is easily adjustable by loosening a thumbscrew.

Operation
The buzzer can be silenced by pressing the pushbutton while the LED continues to flash until the liquid level is corrected. Snooze alarm every 30 minutes thereafter until the level is corrected. Resets automatically when level is corrected.  Other modes of operation that can be selected with DIP switches:

• No snooze alarm
• “Tank filling” mode where the LED and buzzer shut off when the button is prssed.
• Output delayed 15 minutes.
• Relay output
• Auto or manual reset after and alarm

Power save feature allows the unit to alarm continuously for nearly one month!  (The PCB limits the alarming to 60 minutes of full output, and if the alarm is ignored, then the alarm output is reduced to 6 seconds every 30 minutes)

Float switches are protected inside the pipes. Removable float guard allows inspection of the float. 

Weatherproof – all NEMA 4X construction. Suitable for outdoor use.

Easy to install – no electrical wiring with battery version. Battery life is typically a number of years. Further discussion.

 Uninterruptible battery power works through power failures, can’t come unplugged, or be defeated. And, because the Tank Alarms don’t use any power until alarming, the batteries last for years.  Line-powered units also available, please call us for more information.

Materials: polypropylene is standard, and PVDF, or stainless steel is available. see chemical resistance charts.

Any Depth. Specify depths you want at checkout. This is a made-to-order product and so you can specify the depth you needed for each level probe.