Wireless Sensor tags can also act as a simple alarm system and asset tracker. You can monitor doors, windows, assets and even people. It can notify you when they move, leave the area, will return to the area.
Instant notification on iPhones, iPads, Android devices and laptops.
Wireless sensor tags connect events in physical world (e.g. motion, door/gate opened/closed, temperature exceeding limits) to your smart phones, tablets and any Web browsers anywhere in the world with Internet access. You are immediately notified as problems occur.
Small, inexpensive and years of battery life.
A wireless sensor tag is small and inexpensive, and has up to 2 years of battery life depending on settings and usage. Each wireless sensor tag focuses simply on sensing the physical world and sending the information back to the Ethernet Tag Manager up to 60m (200ft) away, in the most energy efficient way possible. Up to 255 wireless sensor tags can be associated with one Ethernet Tag Manager.
What can be monitored?
Temperature If monitoring fridges and freezers you can be notified as soon as they start to become too hot and avoid a nasty surprise the following day. If monitoring room temperature you can control other equipment
Water levels/moisture Be automatically notified in the event of flooding or your garden is drying out.
Doors and windows The system can act as a simple security system and alert you of motion or remind you that something has been left open.
Assets assets can easily be tracked and you can be notified if they are taken away or returned.
Temperature monitoring with battery life in mind.
Wireless Sensor Tags are designed to maximize battery life. Since transmitting data over the air uses a lot more energy than reading from the internal temperature sensor, each Tag transmits only when temperature has become too high, too low or returned to normal range. You can program the upper and lower temperature threshold.
Automatic temperature logging.
When "Auto-Ping" or "Update every..." is enabled for out-of-range notification, the tag automatically updates the server peridically. The data is now logged on the server. (Note that some tags are sensor only and only log when in range of the tag manager) You can review historical temperature at each tag on your phone, PC or Mac. You can also download the entire captured raw data as one CSV file for custom processing.
Each wireless motion sensor tag has a 3D digital magnetic sensor that can precisely measure the orientation of the tag (referenced to the magnetic field of the Earth) with a resolution less than 1 degree. Periodic measurement detects the slightest orientation change resulting from the tag being touched/moved. Watch demo of sensitivity test . In magnetically noisy environments (such as near a moving magnet!), the user can reduce the sensitivity up to several orders of magnitude to eliminate false alarms.
Ultra low power.
Unlike other acceleration sensor based motion sensors, the sensor does not have to be always on in order to capture a disturbance at its exact moment. This patent pending technology of angle based motion sensing trades off a few seconds in notification delay for years of battery life with a tiny coin cell battery, allows each motion sensor tag to be small, light and thin. The user picks a different trade-off between response delay and battery life that best suits the application, individually for each wireless motion sensor tag.
Three-dimensional angle detection
3D magnetic sensor detects not only tilt, but also horizontal rotation. Therefore, it does not matter which direction the tag is placed with respect to the rotation or disturbance to be detected. When configured in "Door/gate mode", each tag may be strapped to garage doors, regular doors in any orientation, or simply thrown into your fridge door pocket (See the entire process of setup) to monitor if the door is open or closed. You can configure the Web app, Android or iOS app to speak to you when a door is opened, opened for too long, or until door is closed from the Motion Sensor Options (iOS/Web/Android). With some tweaks, monitoring sliding door is also possible. When configured in "motion detection mode", each tag may be attached to remotes, keys etc to receive notifications and access historical statistics when they were used.
Click/tap and go digging. Because each wireless sensor tag is so small, anybody can easily lose one. Tap the beep button in the iOS/Android/Web app, and the tag will keep beeping until it is picked up. All you need to do is track down the beeping sound and pick up the tag, and the beeping will stop automatically. See details: iOS or, Web/Android.
Attach the tag to key chains, put inside your wallet, or strap to TV remote controls, and never waste time looking for these items again.
Customizable response delay and battery life. By using the Wireless Settings, you can change trade-off between battery life and range (slower datarate results in longer range but worse battery life since it takes longer to transmit/receive), battery life and response time.
For example, if it is something you only look for once a year, and want the battery to last several years, set it to "within 9 sec" response time, and "38.4kbps" data-rate, and battery life is estimated to be 85 month (about half of that when motion sensor is armed).
Virtually no false alarms.
By setting "Auto-Ping" or "Update every...", each Tag is configured to transmit a status information back to the Tag Manager at a certain interval. Upon receiving such status information, Tag Manager transmits an acknowledgement response back to each Tag. When the Tag does not receive the acknowledgement, it repeats the status information transmission for up to 16 times before giving up.
The system only decides that the tag is missing and send out notifications when it does not receive the status information by the estimated time plus the time needed for the retransmissions. Therefore, even when because of temporary radio interference a single transmission is not successful, very reliably the system can detect if a Tag has gone out of range or gone missing.
See how to receive out-of-range notification: iOS or, Web/Android..
Resistive water detection and capacitive moisture level sensor.
This tag has a resistive sensor at its tip to detect water presence, and capacitive sensors across the exposed portion of the circuit board to measure dielectric constant of the surrounding air/soil/liquid. The moisture level is derived from measured capacitance after a two point calibration by user to define, what kind of condition is "0%" and what is "100%".
The resistive water detector is immediate, while the moisture level measurement is taken and compared against adjustable thresholds at a user configured interval.
Longer battery life, water proof.
By removing the piezo buzzer from the tag, we made room for a CR2450 battery which has 3x capacity than the battery used in our regular motion sensor tags. The circuit board, together with the battery have a water-proof coating. The battery is designed to last the life-time of the tag, and is not repalceable without breaking the coating. This tag is fully compatible with all existing Ethernet Tag Manager we shipped.