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Cisco Meraki Documentation

MT12 Leak Cable Replacement FAQ


Updated - May 16th 2022

In 2021, it was discovered that all MT12 leak detection cables have not been properly built to specification. As a result, some cables may appear to work correctly, but there is no guarantee that the presence of water will be reported successfully every time.

All 8ft MT12 water leak detection cables(MA-CBL-LEAK-1) sold as an accessory could be impacted, regardless of the firmware version. 

No, only a specific issue affecting the leak detection cable on the MT12 has been discovered 

Customers are receiving a replacement cable, free of charge, with instructions on how to complete the replacement. This new cable has been thoroughly tested and will accurately report the presence of water. The replacement cables have begun shipping. If you have any questions about when to expect your replacement, please reach out to your account manager. 

Note that some customers will receive a green cable, and some will receive a white cable. Both cables will work with current MT12-HW device. Simply remove the old cable and plug in the new cable into the MT12-HW device to complete the replacement.

Since it cannot be guaranteed that the existing cables will accurately report the presence of water every time, it is recommend that customers stop relying on the MT12s immediately until receiving new cables. 

The issue was discovered during internal testing of the cables. 

No reason to believe the cables pose any safety risks to customers has been discovered (beyond an inability to detect a water leak).

There is not a test that can provide accurate results regarding cable operations. As a result, it is recommended that all customers stop using MT12 sensors immediately. 

Orders can still be placed for MT12s. However, orders will not be fulfilled until MT12s with new and properly functioning cables are in inventory. 

MT12 RMAs will not be fulfilled at this time. Customers can instead request a refund or wait for a working unit.

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