Tank Level Alarms

Equipment Overview | Filter Pump Industries / Penguin Pump | Process Technology


Foolproof liquid level alarms ensure process chemicals never run out or overfill.

Please call for controls / accesories or special applications.


Tank Level Alarms

The TANK ALARM grabs attention with a bright flashing LED and a loud beeper when liquid level is too high or too low. Easy to install. Easy to adjust the depth in tank. Stop overfilled or empty tanks for good!

Gizmo tank alarm 2
Gizmo tank alarm
Better Tank Level Control...
  • Always on duty because it uses uninteruptible battery power. Lasts for years.
  • Loud warbling tone cuts through the loudest industrial noise.
  • Rugged. Built for rough, wet and corrosive environments.
  • A functional check is simple - just loosen the cord grip and lift the Tank Alarm out.
  • Reliable float switch is protected inside a pipe.
  • Safe. 9 volt circuit in a waterproof enclosure.
  • No wetted metal parts.
  • Choice of power. Battery, 12VDC, 24VDC or AC power option.
THE TANK LEVEL ALARM prevents overfilling. Easy to install as its battery powered. No wires, no electricians needed. Lithium battery included lasts for years.
  • 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.
  • Easy to adjust the depth of the Tank Level Alarms - just loosen the nut and slide the level alarm to the correct depth. Adapters for any mounting situation. (2" NPT, bolt-on flange, bulkhead feedthrough etc.
  • Float is protected inside a pipe. This feature protects the level float so it can't be damaged. Screw-on float guard allows inspection of the float. Optional sreened float guard keeps solids, debris or insects out so they don't foul the float.
  • Weatherproof enclosure - NEMA 4X (IP65). High-visiblity beacon LED is clearly visible outdoors.
  • Any Depth. Standard level alarm depths available up to 5 ft. Custom depths have been made 20 feet deep.
  • Optional circuit board allows different behaviors in addition to testing the circuit such as silencing the buzzer while allowing the LED to continue flashing, a snooze alarm to silence the buzzer temporarily, shutoff mode for filling tanks so the LED and buzzer both turn off until the next fill-up, and low battery monitoring. This is the "silencing button" option.
  • Different models
    • The PVC tank level alarms have a polypropylene float protected in a PVC pipe, and the screen material is polypropylene. (TH-10)
    • Polypropylene models (ex. TH-PP) have all polypropylene parts including piping.
    • PVDF (Kynar) models have a reversible float.
    • Stainless steel tank level alarms on this page.
  • Everything Included - Every unit includes a threaded bushing to adapt the 1" NPT threads for the cord grip to 2" NPT. threads. Lithium battery is included.
Gizmo tank alarm 2


Shutoff Box SH-1

The illuminated button silences buzzer. LED flashes until level is corrected. Resets automatically. Low battery alert.

Gizmo shutoff box sh1
Silencing Button / Low Battery Alert SL-1

Button silences the audio alarm while LED continues to flash. Resets automatically. Includes a low battery warning. Button also tests the unit.

Gizmo silence button sl1
Relay Output with Cord RL-AC

Switches a relay to control pumps or solenoids. Silences and test alarm. Piggyback plug makes hookup easy.

Gizmo relay output RL-AC
AC Power Cord C-NA

When plug-in AC power is preferred. Comes with 3 prong plug and 8 foot rubber jacketed cord. Power convertor inside box.

Gizmo AC power cord C-NA
Rim Mount Bracket MB-R

A bracket designed for mounting on open top tanks and containers. 1.3 inch diameter hole accepts adjustable collar.

Gizmo rim mount MB-R
20 Year Battery B-20

Lithium Thionyl chloride chemistry has a self discharge rate half that of Ultralife LiMNO2 - standby life of 20 years.

Gizmo 20 year battery B-20
Float Screen FS-PP

A top screen will completely enclose the float which allows for reliable operation in liquids containing solids. Also keeps insects out.

Gizmo float screen FS-PP
PLC Output PLC

A circuit board allows you to select N.C. or N.O. output to your PLC. Includes button to silence buzzer. Includes 10 feet of communications cable.

Gizmo plc output PLC
Wireless Transmitter & Receiver W2

Wireless transmitter inside the level alarm sends a wireless signal to the receiver. Buzzer and relay in receiver.

Gizmo wireless transmitter and receiver W2
Siren Alarm Box SA-1

Siren alarm gives an extremely loud signal. Suitable for entire buildings.

Gizmo Siren Alarm SA-1
Multiconductor Cable C-8

Extra cable length over the standard. Heavy 0.032" jacket for superior durability. Eight stranded conductors x 24 gauge.

Gizmo Multiconductor cable C-8
Waterproof Screw Lock Connector CN-2

For units with a cable. Makes it easy to connect and disconnect.

Gizmo Waterproof Screw Lock Connector CN-2
Different Buzzer Tones BZ-xx

Different buzzer tones to audibly identify different units. (Chime, Stucatto, Whoop, Beep)

Gizmo Buzzer tones
Buzzer Volume Control V-1

Snap-on muffler reduces the volume by 20 dB and anywhere in-between just by rotating the slots.

Gizmo Buzzer Muffler V-1
Alternate Color LED BL-x

Default color is red. Amber, Blue, and Green are in stock. White is a special order.

Gizmo Alternate LED color