Qolsys Flood Sensor—Battery Replacement

Find the image of your flood sensor below to view instructions on how to complete your battery replacement. Due to the versatility of your panel, only commonly paired sensors are shown. If your specific sensor is unlisted, you can search for other sensors here. If you need further assistance, you can text a Support Representative any time at 469.513.8685.

Once you've replaced the batteries, the error on your panel should clear within one hour. If you would like to clear the error manually, click here.

Qolsys QS5536-840 IQ FLOOD Encrypted Water Sensor:

Press end button to remove the cover, then remove and replace 2 CR2032 Lithium batteries.

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Interlogix 60-744-95R / NetworX NX-695 Water Sensor:

Press the end button to remove the cover, then remove and replace 2 AAA Alkaline batteries.



Interlogix / Ecolink TX-E611 Flood Freeze Sensor:

Remove from the mounting bracket and backplate as shown below, then remove and replace CR2450 3-Volt Lithium battery.