Industrial facilities that manage hazardous liquids face significant risks from tank overfill incidents. These events often lead to environmental contamination, serious safety hazards, and substantial financial losses. A study of 242 tank incidents from 1990 to 2004 revealed that 30% were caused by inadequate maintenance. Additionally, human error accounted for 35% of overfill incidents reported between 2000 and 2013. These findings highlight the urgent need for robust preventative measures and operational vigilance.



The ADS A100 Outalarm® offers a robust solution to mitigate these risks. This self-contained capacitance probe provides bright LED alerts and audible alarms, ensuring accurate liquid level detection and preventing overfill situations. With easy installation and durable construction, the A100 Outalarm® is designed to enhance safety and operational efficiency in industrial settings.

Investing in reliable overfill prevention technology like the ADS A100 Outalarm® is essential for safeguarding personnel, protecting the environment, and avoiding costly incidents. meeting ANSI/UL913 for Class I, Div 1 Groups A, B, C, and D Hazardous Areas. Trust it in any environment where safety is critical.


Key Benefits that Set the A100 Apart

All-in-One Tank Level Alarm System

The A100 combines a high-intensity audible alarm and ultra-bright LED indicators into one fully self-contained unit—no wires, no tubing, and no external power required.

Rugged, Weather-Resistant Durability

Built with a corrosion-resistant enclosure and 316 stainless steel probe, the A100 is designed for long-term, harsh-environment performance.

Spill Protection & Overfill Safety

With instant alarm activation, the A100 helps terminal operators prevent environmental spills and safety incidents during loadout.

Zero Calibration Needed – Plug and Protect

Featuring a digital phase shift capacitance sensor, the A100 accurately detects conductive and non-conductive liquids without calibration or adjustment.

Rapid Installation

Designed for speed and ease, the A100 uses a 1/2" NPT insertion fitting and adjustable insertion length for quick, secure setup.


                      Technical Specifications

•Temperature Range: Standard: -14°F to 250°F (-26°C to 121°C) High Temp: -14°F to 325°F (-26°C to 163°C)

•Min. Dielectric Constant: 1.82

•Materials: 316 stainless steel probe, PTFE standard

•Sound Output: 101 dB at 2 ft

•LEDs: Over 3,000 mcd high-intensity red flashing LEDs

•Pressure Rating: 50 PSI standard (Up to 300 PSI with custom options)


A100 Outalarm® with Probe

A100 Outalarm? with Capacitance Probe

Item #: A100C24A
Supplier Part #: A100C24A

24” 316 stainless steel ADS Outalarm with Capacitance Probe

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A100 Outalarm? with Capacitance Probe

Item #: A100C36A
Supplier Part #: A100C36A

36” 316 stainless steel ADS Outalarm with Capacitance Probe

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A100 Outalarm? with Capacitance Probe

Item #: A100C48A
Supplier Part #: A100C48A

48” 316 stainless steel ADS Outalarm with Capacitance Probe

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A100 Outalarm? with Capacitance Probe

Item #: A100C60A
Supplier Part #: A100C60A

60” 316 stainless steel ADS Outalarm with Capacitance Probe

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A100 Outalarm? with Capacitance Probe

Item #: A100C72A
Supplier Part #: A100C72A

72” 316 stainless steel ADS Outalarm with Capacitance Probe

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A100 Outalarm? with Capacitance Probe

Item #: A100C84A
Supplier Part #: A100C84A

84” 316 stainless steel ADS Outalarm with Capacitance Probe

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Gain peace of mind with a tank monitoring system that just works—no tuning, no downtime, and no surprises. Contact our team today to learn how the A100 Outalarm® can integrate into your terminal operation and eliminate your risk of spills.


Contact Us

Custom Hydraulics and Design
242 Dick Beam Road, Cherryville
North Carolina 28021

P: (704) 347 -0023

Support@chdnc.com