Sensor Type





Mobile Phone (Cellular)

 ML417  WDL314







YDOC’s  ML417 family of remote telemetry units are versatile and powerful. The ML417 is available in Cat M1 (ML417M1) or 4G with 3G fall-back (MLA417).
 The WLD314 is a water level logger designed for installation in a 50mm well cap. It is currently only available in 3G format.
The RTUs communicate  over the mobile phone network an can send data via TCP, FTP and Email
Follow this link to the MLN417  or the WDL314 page for more information.








tbsl1 in citrus_120


The TBSL1 is a telemetry unit with some hidden features. One of these is the ability to swap out the modem board. Fitting the 4G modem board allows the unit to send data via the Cat M1 network.



Mobile Technology


3G, 4G and 5G - what it means for telemetry


WiFi Telemetry



WiFi is becoming ubiquitous - everywhere you turn you see another WiFi based product. While normally thought of as a short range, high data rate technology, WiFi is surprisingly adaptable and, given the right antenna choice can work over distances of 1 km.





Every ML417 or ML017 unit carries an expansion port in to which you can plug a WiFi expansion board.  Just configure it with the details of the on site WiFi access point, and away you go.





When the WiFi modem board is added, the TBSL1 can send its data through an on site WiFi connection.


Radio Telemetry

LoRaWAN Products





lora node_100


LoRa is an emerging radio technology which, through use of advanced modulation techniques offers long transmission range from low power devices - the term “LoRa” is a contraction of Long Range.
LoRaWAN adds extra capacity to the LoRa  radios and provides an IP based communications layer. IP or Internet protocol,  is one of the significant technologies underpinning the “Internet of Things” (IoT) which adds communications capabilities to a range of new devices - everything from wearables to flow meters to parking meters and traffic sensors.
Tekbox’s TBSL1-LO may be used to connect any SDI-12 compatible sensor to an internet based server.
Follow this link for more details on the LoRaWAN products.


Satellite Telemetry

Iridium Satellite







The YDOC ML417 and ML017 units may also be fitted with an Iridium Edge modem, with data then transmitted over the Iridium satellite system. Sensori has been given an importer to allow it to collect data from the Iridium Servers via Email.