The BLE radio chip integrated on the device has a nominal value of 50m.

During in-house testing, we have reached up to 80 m range on an open space, at the same level and keeping transmitter (ULTRASONIC) and receiver (Nexus 5) at the same positions during the test.

Range will depend upon transmitter-to-receiver direct visibility, your device antenna performance, electromagnetic environment (electrosmog), etc.

The ULTRASONIC Portable restarts after 10 minutes thanks to the system called “watchdog”. You simply have to reset the application again and it will work correctly again. 

The Ultrasonic Portable has been certified by an approved independent laboratoty as IPX8.

In order to get that IPX8 code certificacion, ULTRASONIC Portable has successfully passed a 30 minutes water immersion test at a depth of 10 meters (1bar) with no water ingress.

We have also run more severe tests in house with successfull results (even though they are not certified). However, reaching IPx8 30 min-10 m does not yield warranty of waterproofness at 10 m.

The same rationale applies to swimming watches; a watch needs to be tested at 30-50 meters depth to be considered water-resistant at a swimming depth of around 1 meter. For going deeper than (snorkeling, diving) watches are individually tested up to 200-500 m!.

Several factors might affect Ultrasonic watertightness: rubber seals and plastics wear and tear, drastic temperature changes (hot air then cold water), previous impacts, pressure increase rate (immersion velocity), water density and temperature, under-water speed and acceleration, ... This is why we do certify that our Ultrasonic is IPX8 30 min-10 m but we cannot warranty that is waterproof at 10 m.

The Ultrasonic Portable is a great device to take on board.

User manual states "Do not attempt to access the transducer area (metal circles) with your fingers" . Please, contact to us to get a solution to repair your device.

Follow to User_manual_NMEA_Connect_4.0_v.001 on our website.

12 A minor deviation from the flat position should not affect the readings. However, it is better to mount the Ultrasonic Portable in perfect position in order to avoid any turbulences.

13 You can develop your own App. The protocol is open. See an example on the following link:

Currently, is possible to select between 1hz, 4hz and 8hz using our Anemotracker APP. In the next firmware update (it is updatable via Bluetooth), it will be possible.

The change of bauds rate is not implemented into the app. It's done with NRF CONNECT or whatever BLE utility. It's a one-shot modify, saved into the flash for further connections. Please ask us for the NRF Connect if neccessary.

Yes, you should use termination. 

Ultrasonic only works with a power source between 5 and 24V. For any power above 24V or below 5V we can't ensure that it will work properly.

Any indication of dirt on the solar cell may block the power generation. However, we have not experienced any problem with dirt since it usually gets washed out because it disappears before the battery is over.

Yes, it is enough for the Ultrasonic Wired Standard.

The correct form is to be sure that your device is not wet because it could damage your device. Be sure too that the solar cell is clean. Clean it with a wet cloth.

If your device has a solar cell, first of all, clean the area with a wet towel. Then, it is likely that the battery is discharged, so the best way to charge it is puttingit under a LED lamp (it must be close) and wait a couple of days.

Since that is an unsigned integer in the range 0 - 360*. Is 360* the bow reference?

Wind range is 0º to 360º. The bow reference is the north mark which is noticeable on each device (see the manual if any doubts).

No, we don't use it to filter wind output. However, the gyrosensor signal is also sent continuously and some third party apps may use this feature to filter the wind.

If you have a bluetooth unit, then ANEMOTRACKER APP is compatible. Some other APPs are also compatible. As far as we know, SailRacer, Weather4D, iEstela, and Sentinel Marine Solutions.