Dual Level

THE DUAL TANK ALARM or two-point alarm has two adjustable float switches to provide two alarm points.  Each float switch is protected inside the end of a level probe.  Either float switch can monitor high or low level. They can be reversed for flexibility.

If either point is activated by the liquid level, a warbling alarm sounds and flashing LED activates.   Different alarm pattern for each float. (rapid or slow flashing and beeping)

Easily adjust able depth with no tools – just loosen the thumbscrew and slide either level probe to the desired depth. This is a semi-custom level alarm and so you can specify the depth you needed for each level probe.  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)

All modes feature a low battery alert has a distinct stacatto tone. 

Also, for relay outputs, a broken cable alarm.

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. further discussion

Different materials: polypropylene is standard, PVDF, stainless steel available. see chemical resistance charts.

Any Depth. Specify depths you want at checkout.

Everything Included
Includes a 10-year lithium battery and threaded 2 inch NPT mounting plug.