Product Description
Reliable Tank Alert Alarm System for Sump, Septic & Wastewater Applications
SJE Rhombus Tank Alert® AB is a reliable tank alert alarm system designed to monitor liquid levels in sump pumps, septic tanks, and wastewater systems. Built for indoor use, this liquid level alarm system provides clear audible and visual alerts when liquid levels reach critical high or low points, helping prevent flooding, overflows, and costly system damage.
Ideal for residential, commercial, and municipal applications, the Tank Alert® AB is widely used as a pump alarm system, tank level alarm, and lift station alarm. When an alarm is triggered, a loud horn and bright indicator light notify you immediately, so you can respond before problems escalate.
Why You Need a Tank Alert Alarm System
Unexpected pump failure or rising water levels can lead to:
Basement flooding
Septic system backups
Equipment damage
Costly repairs and downtime
This SJE Rhombus Tank Alert AB system helps detect problems early and takes action before serious damage occurs.
Key Features & Benefits of the SJE Rhombus Tank Alert® AB
Indoor Compatibility: Enclosed in a NEMA 1 rated enclosure for secure indoor use, making this tank alert alarm system ideal for residential and commercial installations.
Auto-Reset Function: Automatically resets the alarm once the liquid level issue is resolved, ensuring continuous monitoring in any tank level alarm application.
Dual Alert System: Red alarm light and loud horn (87 decibels at 10 feet) provide immediate warning in this reliable liquid level alarm system.
Battery Backup: Ensures continuous operation during primary power failures (battery not included), making it a dependable wastewater alarm system.
Low Battery Indicator: A chirping sound alerts you when it's time to replace the battery, keeping your tank alert system functioning properly.
User-Friendly Controls: Alarm test switch and horn silence switch for easy testing and silencing in this pump alarm system.
Easy Installation: The external terminal block enables quick and simple float switch installation, reducing setup time for any tank alert alarm system.
Safe & Reliable: UL Listed/Recognized switching mechanism rated for 1 amp, 9 VDC load, with low voltage operation for reduced risk of electrical shock in wastewater and lift station alarm applications.
How the SJE Rhombus Tank Alert® AB Works
This tank alert alarm system uses a float switch to monitor liquid levels and trigger alerts when conditions become unsafe:
Alarm condition is triggered when the float switch (sensor) detects high or low liquid levels
The red alarm light illuminates, and the buzzer sounds continuously to signal an issue
The alarm remains active until the liquid level returns to a safe range
The test/silence button can mute the buzzer, while the alarm light stays on to indicate the condition
Once the sensor deactivates, the system automatically resets for the next alarm cycle
This liquid level alarm system provides continuous monitoring and reliable protection for sump, septic, and wastewater applications.
Best Applications
The SJE Rhombus Tank Alert AB is ideal for:
Sump pump systems (basement flood prevention)
Septic tanks and sewage systems
Lift stations and pump chambers
Holding tanks and storage systems
Wastewater and agricultural applications
What’s Included
Tank Alert® AB alarm panel
15 ft SJE SignalMaster® float switch (select models)
Mounting hardware
Installation-ready terminal connections
Choose Your Tank Alert® AB Configuration
Select the option that best fits your application:
Panel Only (No Float Switch Included)
Ideal if you already have a compatible float switch or need a replacement alarm panel.
High Level Alarm (Includes 15 ft Float Switch)
Designed to alert you when liquid levels rise too high, perfect for preventing overflow in sump, septic, or holding tanks.
Low Level Alarm (Includes 15 ft Float Switch)
Triggers when liquid levels drop too low are commonly used to protect pumps from running dry.
Installation Overview
Installation is quick and straightforward; most setups can be completed in minutes:
Mount the alarm panel
Secure the panel to a wall using the rear keyhole.
Position the float switch
Install the float at the desired activation level based on your application (high or low level alarm).
Connect the float switch
Wire the float switch to the alarm panel’s terminal block.
Insert a backup battery
Install a 9V battery to ensure operation during power outages.
Plug into power
Connect the unit to a standard 120V outlet.
Test the system
Press the test button to confirm proper alarm operation.
Technical Specifications – SJE Rhombus Tank Alert® AB Alarm System
Specification
Details
Primary Power
120 VAC, 60 Hz, 2.4–2.9 W
Battery Backup
9V DC (not included)
Float Switch Voltage
9 VDC
Alarm Horn
87 dB @ 10 ft
Enclosure Type
NEMA 1 (indoor)
Enclosure Dimensions
6 x 4 x 2.25 in
Power Cord Length
6 ft
Indicators
Red (alarm), Green (power)
Controls
Test switch, silence switch
Auto Reset
Yes
Low Battery Alert
Audible chirp
Float Switch Compatibility
1 amp, 9 VDC (UL Listed)
Float Switch (Included Models)
15 ft SignalMaster®
Float Cable
15 ft, 18/2 SJOW, water-resistant
Float Material
Polypropylene (corrosion-resistant)
Max Liquid Temperature
140°F (60°C)
Auxiliary Contacts
Optional (N/O, N/C)
Certifications
UL Listed, CSA Certified
Warranty
5-Year Limited
Order the SJE Rhombus Tank Alert® AB Alarm System Online
Protect your system with a reliable tank alert alarm system designed for real-world wastewater and pump applications. The SJE Rhombus Tank Alert® AB delivers dependable monitoring, fast response alerts, and long-term performance for sump pits, lift stations, holding tanks, and more.
Buy the SJE Rhombus Tank Alert AB, a trusted liquid level alarm system and pump alarm system, online from Cleanflow. We offer competitive pricing, fast shipping, and expert support.
Cleanflow supplies tank alert alarm systems across Canada and the USA, making it easy to get the right solution when you need it.
Looking for more options? Explore our full range of SJE Rhombus Controls & Alarms to find the right configuration for your application.
FAQs
What is a tank alert alarm system?
A tank alert alarm system monitors liquid levels using a float switch and alerts you when levels become too high or too low, helping prevent overflow or system failure.
Can this be used as a septic tank alarm?
Yes, the Tank Alert® AB is commonly used as a septic tank alarm and in sewage and wastewater systems.
Does this alarm work during power outages?
Yes, it includes a 9V battery backup that allows the system to continue operating if primary power is lost.
How loud is the alarm?
The alarm horn reaches approximately 87 decibels at 10 feet, making it easily audible in most indoor environments.
Does the alarm reset automatically?
Yes, once liquid levels return to normal, the system automatically resets for continued monitoring.
Can the alarm be silenced?
Yes, the horn can be temporarily silenced using the silence button, but the warning light will remain on until the issue is resolved.
What applications is this best suited for?
It is ideal for sump pumps, septic systems, lift stations, holding tanks, and general wastewater monitoring.c
Usually ships same or next day. 
