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The Indoor Z-Control APak® Alarm System provides an audible and visual warning in the event of high liquid in pump basin. The system comes with a 15′ reed sensor-style float switch  and 6′ power cord.



 Indoor APak® Alarm System with Z-Control monitors liquid in sump pits, pump chambers, holding tanks, and other water systems.  The small size of the reed sensor switch makes it ideal for the compact basin typical in basement sump applications.  Our APak alarm will provide an audible and visual warning if the water level presents the danger of overflow.  This early warning gives you time to act and protect your property from flooding.

The APak alarm is powered by a 115 V electrical circuit or two AA batteries so it functions even in the event of a power outage.  During standard operation, a green light indicates that the power is on.  A chirping noise will indicate a low battery condition.

A red light will illuminate and an 80 dB buzzer will sound notifying you of a high-water condition.  The APak also includes a Silence/Reset/Test button allowing you to manually initiate certain functions.

The addition of the Z-Control feature on this alarm allows the device to notify you of designated water levels via free text, email, or push alerts.  For example, when the water level rises in the pump’s vicinity, the device sends an early notification to the owner.  An account with an app and web interface offers a user-friendly experience.  The cloud-based app makes it an easy and convenient way to check your water levels at all times.

These indoor alarms have a compact design and are simple to install on the basement wall. With an APak® Alarm and Z-Control in place, you can have peace of mind knowing that you’ll be alerted of any high-water conditions no matter where you are.


  • Green POWER light and Red INPUT light
  • 115 V indoor APak alarm with 6' of power cord
  • Simple to install on the wall near the sump pit or pump tank
  • Audible buzzer rated at 80 decibels at 10’ that notifies you of a high water condition and Wi-Fi enabled so you receive text alerts even when you aren't home
  • Silence/Reset/Test button that allows you to initiate key functions and WiFi enabled so you can do the same even when you aren't home
  • Battery backup power is supplied by two AA batteries, which are not included and must be purchased separately
  • 5-year limited warranty giving you extra protection and more peace of mind right out of the box

Shipping Weight:

.5 lbs

Shipping Dimensions:

Height 8 in   x   Width 5 in   x   Length 8 in.




115V, 60 Hz receptacle, battery power is supplied by 2 AA batteries 6' (2 m) power cord






Founded in the family basement in 1939, Zoeller Pump Company is one of the oldest family-owned water pump manufacturers in North America. Headquartered in Louisville, KY, we proudly excel with fourth-generation leadership and an expanding workforce.


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