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Cisco Meraki MT12
Cloud-managed water leak detection sensor

The MT12 water leak detection sensor helps protect your critical infrastructure from failed HVAC systems, adverse weather conditions, and leaky pipes that can cause network downtime and equipment failure.

MT12 image

Cisco Meraki Product
Indoor Sensors
Cisco Meraki MT12 sensor
*Please Note: Each Meraki MT sensor requires a license to operate.
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IT infrastructure helps keep businesses running smoothly. From maintaining a comfortable working environment to powering IT operations, such appliances are the backbone of any business.

Protecting this critical equipment from potentially dangerous conditions is key to minimizing business interruptions and downtime. The Cisco Meraki MT12, a water leak detection sensor, can detect the presence of as little as 3 mL of liquid on its 8' sensor cable, helping ensure safe operating conditions.

Simple sensors. Powerful Meraki platform.

The Meraki MT12, part of the MT sensor family, cuts the complexity of traditional sensor systems by eliminating the need for separate gateway and management software. MT sensors use existing Meraki MR access points or MV smart cameras in the same network as gateways, automatically connecting and speeding up deployment timeframes. Powered by the Meraki platform, the MT sensors are fully cloud-managed. Real-time visibility through the Meraki cloud dashboard and mobile app, along with flexible alerting options, keep you up-to-date wherever you are.

Once in place, MT12 will continuously monitor your environment. If your HVAC system malfunctions causing leaks, or pipes freeze and burst, MT12 is there. Create customized alerts to notify you of changing conditions so you can take action and prevent network outages, premature equipment failure, downtime, or product loss.

Product highlights

  • Simple to set up and deploy; scales easily
  • Automatically connects to MR/MV devices in the network
  • Cloud-managed, bringing the magic of the Meraki platform to the IoT sensor world
  • Meraki cloud dashboard eliminates the need for on-premises servers
  • Flexible alerting with email, SMS, and push notifications
  • Wireless connectivity using Bluetooth Low Energy (BLE)
  • Trust Anchor module (TAm) securely authenticates the device and encrypts all communications
  • Five-year battery life with two (2) user-replaceable AA batteries
  • Optional AC-to-USB-C power adapter
  • Advanced telemetry data for smarter decision-making
  • APIs and webhook alerts for third-party alerting and data analysis
  • Vast ecosystem partner community building apps on top of the Meraki platform

Maximize network uptime and equipment lifespan

Real-time visibility and alerts give you control over your environment. Ensure optimal conditions and minimize risk with remote monitoring and flexible alerting.

Gain value in less time

Quickly provision and manage thousands of sensors to monitor temperature, humidity, leaks, and intrusion. Simply insert the batteries and add to the dashboard. MT sensors automatically connect to existing MR and MV devices. Say good-bye to on-premise servers, dedicated gateways, and management software.

Drive smarter decisions through data

Understand trends about your physical environment. Improve safety, security, and operational decision-making through a data-driven approach. Build on top of the Meraki platform using APIs or the vast ecosystem partner community and further enhance operations.

Secure IoT devices seamlessly

Each Meraki MT sensor features a Trust Anchor module (TAm), which securely authenticates the device and encrypts all communication with the sensor gateways. Combined with automated firmware updates, Meraki MT sensors pack a powerful security punch in a smart package.



Centralized cloud management

The Meraki dashboard provides secure monitoring and management of all your Meraki products-from MRs to MVs to MT sensors-from anywhere in the world.


Flexible alerts

Set customized thresholds for devices and receive alerts via SMS, push notifications, email, or use webhooks to connect to your platform of choice.


Automatic Bluetooth connectivity

Using 2.4 GHz Bluetooth Low Energy (BLE), sensors automatically connect to MV and MR devices in the same network.


Seamless setup and installation at scale

Wire-free installation, flexible mounting options, and automatic pairing makes it easy to provision thousands of sensors in a short amount of time.


Onboard storage

Five days of onboard storage keeps data safe in the event of an outage.

icon_Long battery life

Long battery life

Field-replaceable AA batteries, with up to five years of battery life, provide one less thing to worry about.


Open API

Automate analysis outside of the dashboard, link to third-party services, and aggregate MT data with information from other business systems.


Secure and always up-to-date

Trusted Anchor module (TAm) enables a secure key to exchange data between the gateway and sensor. Automatic firmware updates keep things running smoothly.

MT12 specifications:

Water leak sensor
Capable of detecting the presence of as little as 3mL of water making contact with the cable
Wireless capabilities
Bluetooth only viaMV/MR as gateway Compatible with second-generation MV smart cameras and Wi-Fi 6 MR access points
Operating frequency 2.400-2.4835 GHz
IEEE standard 802.15.1 (Bluetooth 4.2 Low Energy BLE)
Data logging
Data Polling Frequency Every 20 minutes, or immediately upon state change
Onboard data storage 4,000 data points (5 days of data at the default sampling rate)
BLE messages encrypted and authenticated using Cisco Trust Anchor technology
Power characteristics
Two AA batteries or power adapter
Battery life up to five (5) years
Power ratings: 5V; 0.2A
Operating environment
Temperature: 0°C - 55°C (32F° - 131F°)
Relative humidity: 0-95%
Physical characteristics
Dimensions 117.1mm X 65.9mm x 26.0mm (length x width x height)
Battery compartment
Multicolor, multifunction status LED
General purpose button
Reset button
USB-C port
Water leak detection plug (female connector)
IPX5 rated
Three-year hardware warranty with advanced replacement
In the box
Quick-start & installation guide
AA batteries (x2)
8ft (2.4M) Water Leak Detection Cable (MA-CBL-LEAK-1)
Mounting equipment Backplate, Mounting magnet, 3M tape
Mounting screws (x2)
Drywall anchors (x2)
Cable clips (x8)


Download the Cisco Meraki MT12 Sensor Datasheet (PDF).

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Pricing Notes:

Cisco Meraki Product
Indoor Sensors
Cisco Meraki MT12 sensor
*Please Note: Each Meraki MT sensor requires a license to operate.
Our Price: Request a Quote
Enterprise License and Support
Meraki MT Enterprise License and Support, 1 Year
Our Price: Request a Quote
Meraki MT Enterprise License and Support, 3 Years
Our Price: Request a Quote
Meraki MT Enterprise License and Support, 5 Years
Our Price: Request a Quote
Meraki MT Enterprise License and Support, 7 Years
Our Price: Request a Quote
Meraki MT Enterprise License and Support, 10 Years
Our Price: Request a Quote
Cisco Meraki Accessories
Cisco Meraki 8ft (2.4M) Water Leak Detection Cable IPX5 rated
Our Price: Request a Quote
Cisco Meraki External Power Adapter
Our Price: Request a Quote