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MonnitSense Newsletter - April 2011
MonnitSphere is now iMonnit
Featured Wireless Sensor

Active RF ID Sensors

Wireless Active RF ID Sensor

Monnit's wireless active RF ID sensor can be used as a digital ID tag for any object allowing you to track its contents and tell if it is on premises or not. These sensors are perfect for managing assets such as car lots or construction equipment.

Monnit's wireless RF ID sensors allow you to:

  • Manage assets
  • Assign contents for tracking
  • Know if things have been removed from a location

Learn More »

Buy Now!

In this issue

Glimpse of the future
We Listened!

You Speak, We Listen!

Monnit is Evaluating Positioning Technology

We have received some interest requesting the ability to track a sensors position within a building or specified area for tracking an asset's location. Monnit is currently evaluating this type of technology and is looking for your input on the topic. If you are interested in this type of wireless sensor technology please let us know by filling out this 3 question survey.

« Let us know if you are interested

Monnit Web Special - April 2011

Glimpse of the future

Crystal Ball

Let's take a look in our crystal ball to see what the future holds at Monnit?

If we look into our crystal ball we can see a new addition to the MonnitLink™ line of wireless sensor gateways. The Monnit team has been hard at work developing new gateways designed for standalone use without a PC for remote locations. We are proud to say that the MonnitLink™ Cellular Gateway is almost complete. The cellular gateway was designed to function on any cellular network allowing complete remote wireless sensor capabilities. We are in the testing phase of this product and are currently qualifying Beta Testers. If you are interested in becoming a beta tester for the MonnitLink Cellular Gateway, please email us at devteam@monnit.com.

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Application of the Month

Resort Boiler Monitoring

Using wireless sensors to monitor resort boilers and water heaters.

It can be expensive to maintain boilers and water heaters at resorts. How does your maintenance staff monitor boiler temperatures for changes and know if there are water leaks in or around boilers and water heaters?

With Monnit Wireless Temperature Sensors and Wireless Water Sensors you can have 24/7 monitoring of your boilers and water heaters to track temperature fluctuations and detect water leaks, allowing you to catch failures before they have time to become costly repairs or replacements. Enjoy the peace of mind that comes from using Monnit wireless sensors to help manage your resort.

Catch Boiler or Water Heater Issues with Monnit Wireless Sensors.

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Tech Tip of the Month

by The WiSe Guys

WiSe Guys

Understanding the Battery Graphic in the iMonnit™ User Interface.

Monnit offers two sensor products with different battery options. The Monnit is our least expensive, and most common sensor line and is powered by a CR2032 battery and has 250mA hours worth of energy. The Monnit WIT2 is powered by two AA batteries and provides the user with 3,000 mA hours worth of energy.

The battery graphic in Monnit's software solutions (iMonnit, Monnit Express and Monnit Enterprise) is represented by five different images:

  • Above 75% it shows Full
  • Above 50% it shows Three Quarters
  • Above 25% it shows Half
  • Above 10% it shows One Quarter
  • Above 0% it shows red
  • At or below 0% it shows Empty

The percentages are configured per the following table:

Battery Type








2.7V or <





3.0V or >

2 AA Lith Ion

2.4V or <





3.0V or >

Monnit uses linear interpolation for all values between the given points. For example, a battery voltage of 2.95 is between 2.9 and 3.0. The battery percent is half way between 75% and 100% (or 87.5%) so the display will be rounded to 88%.

Because the power reservoir is small in the CR2032, the voltage can fluctuate between reads. This can cause the reading to change from 50% to 0% by only having a .15V drop at the time of the battery read. For example, if the network encounters any interference and the sensor has to transmit more than once, the battery will display lower than subsequent readings that didn't have to send retries.

A benefit to AA batteries is that they will show a much smoother curve as the batteries drain due to the larger power reservoir.

« Read Other Tech Tips from the WiSe Guys

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Evaluate Sensor Positioning Technology!
Naitonal Instruments Labview

Interested in LabVIEW Instrument Drivers for Monnit Wireless Sensors?
Let us know at info@monnit.com

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