Frequently Asked Questions - WATER Alert


You are holding a Myspool Water Alert in your hands. How do you configure it with your phone number and email and let it know how to access the internet to transmit alerts?

  • Connect your device to WiFi 
  • Plug it into A/C outlet.  FIll a cup halfway with water. Place the sensor pad in the water for 30 seconds.  Wipe it dry.
  • Create a new account on and click on email link to confirm it or login to your existing account
  • Confirm your email subscription for this device to receive alert notifications

You are done: trigger an alert from your device again by dipping the pad in the water for 30 seconds and receive an email notification!



You can calibrate your WATER Alert to be more or less sensitive, depending on your requirements.  For example, when placed near a sump pump, you may want it to be less sensitive. On the other hand, when placed near a hot water tank or a humidifier, you can increase the sensor sensitivity.

Calibration Steps

  1. Pry open the lid off the black enclosure or unscrew the lid from the rugged enclosure. 

  2. Plug the WATER Alert into a power outlet.  Locate a small circuit board with a tuning screw and two green led lights. One of them is a power indicator and must be on at all times.  

    No Water

  3. Put the sensor pad in a cup of water. If you want your device to be more sensitive, make sure only half of the pad is immersed in water.

    More Sensitive

    If you want your device to be less sensitive, make sure 3/4 of the pad is covered by water.

    Less Sensitive

    Also make sure the sensor pad connectors are not in the water during calibration. The small board should now light up two green lights.

    Water Indicator

  4. Turn the tuning screw (a potentiometer which is a square plastic part next to the green light) counter clockwise until one of the green lights is off.


  5. Turn the tuning screw clockwise notch by notch until second light goes on. Make sure you are turning the screw very slowly. 

  6. Take the sensor pad out of the water and dry it with a paper towel.

  7. If the second light goes off you are done, otherwise turn the screw counter clockwise just a notch and repeat the process.

Note: if device is adjusted to be less sensitive, the second green light should go off the moment the sensor pad is taken out of the water - without drying it with paper towel.





Some MySpool products use float sensors. What are they and how can they be deployed?

A float sensor, sometimes called a float switch,  is a device that is used to sense the level of a fluid. It acts as a mechanical switch. There is a float ring surrounding the sensor. When the float is at the bottom, the switch is open. When water level rises, it pushes the float upwards and the switch closes.    Our float switches come with a black o-ring to indicate how far the float ring needs to rise until the switch is closed.  When testing your MySpool Water Alert device, you can think of the float sensor as a push button switch.  When the float ring is at the o-ring level or higher, the switch is depressed.  Letting the float ring down is equivalent to letting go of the switch.  





1. Remove the cover from the WATER detector, either by removing the four screws from the lid or by prying off the lid from the black box with a flat screwdriver.

2. Unplug the mositure sensor wire going to the blue circuit board as shown here:


3. Plug the float switch connector into the blue circuit board instead:


4. You may need to force the connector onto the board or gently squeeze the two pins on the board as shown below and try again



I need to erase WiFi information from my battery powered Water detector with a float sensor, how do I do that?

Using a phillips screwdriver remove the four screws holding the lid and remove it. Locate a push button labeled Clear (button 1). This button needs to be held depressed when device is activated to wipe WiFi configuration.  You can remove the float sensor from the wihite connector and just use the Sensor button (button 2) to activate your device.  Or make sure  that the float is held vertically in the lowest position and lift it up to activate your device.

Before activating it, make sure that there is no blue light on the chip inside. If the blue light is on or  is blinking, remove one battery for the circuit to shut itself off and put it back in.

Press and hold the Clear button and press Sensor  button for 2 seconds. If you see a blue led light up and stay on,  the device has been cleared and can now be connected to a new WiFi network.


How to delete and change the WiFi of your Water Alert?

If you need to move the Water Alert to another location or simply need to re-configure it to use another WiFi network, you need to delete the information already stored there. To do that, unplug it from the power outlet and remove cover. Press and hold the CLEAR button while you plug the device back in the power outlet. You should see a steady blue light on the blue circuit board indicating that the device is ready to be configured with a new WiFi network.

Your device has now been cleared and can be unplugged and moved to another location or re-configured to use another WiFi network