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Soil Sensors Data Loggers / Handhelds Wireless Accessories
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Growing Innovation

GP-BTDL Bluetooth SDI-12 Data Logger

Log data and retrieve it wirelessly on your smartphone.

  • The Bluetooth SDI-12 Data Logger is a wireless access point to retrieve data from ANY SDI-12 sensor.

  • Customize your data collection by choosing logging intervals and configurations that fit your needs.

  • Connects up to 10 SDI-12 sensors (via multiple 4-Port SDI-12 Expansion Bars).

  • Logger operates on Primary C-Cell battery (3.6V - Cold Temperature Battery) - Battery Not Included.

  • Retrieve your data with our free GP Reader app available for Android devices (iOS coming soon).

 

Overview

Bluetooth SDI-12 Data logger

The GP-BTDL Bluetooth SDI-12 Data Logger is wireless data logger that allows you to retrieve data through your Android device. It is left on site to reliably collect data from your GroPoint Soil Sensors or other SDI-12 sensors, allowing you to access the data when convenient. Our data logger will collect and store up to 4MB of environmental data, such as soil moisture, temperature, EC and more.

The free GP Reader app (available for Android devices only) is used to check current conditions, download data and set up the sensor sampling interval (from one minute to 12 hours). With the app open on your smartphone, simply push the button on the GP-BTDL Bluetooth SDI-12 Data Logger to wake it up and automatically establish a wireless connection. Tap the Download button in the app to download all logged data. You can also check the current battery level of the Bluetooth Data Logger.

The GP-BTDL Bluetooth SDI-12 Data Logger connects to up to 10 SDI-12 sensors (with the 4-Port SDI-12 Expansion Bar) with 200ft of cable as per SDI-12 specifications. For more information on sensor configurations, see our data logger user manual. Sensors must terminate in an M12 connector. Works with most V1.3 SDI-12 Sensors.

Data is stored in non-volatile memory and is retained even if the battery fails. The memory can hold up to 200,000 measurements.

Features

  • Retrieve sensor data wirelessly to your smartphone with a quick visit to the app

  • Stay connected up to 60m (200 ft) away

  • Operates with a Primary C-Cell battery (3.6V or 2*AA 1.5 V alkaline)

  • Typical battery life of several years

  • Water-resistant, IP65-rated enclosure

  • Data is retained even with no battery

  • Free GP Reader App available for Android devices

Specifications

Product Specifications

Output Choice of data format being .txt, .csv or .dat retrieved via bluetooth
Sensor interface SDI-12 / RS-485 (SDI-12 version)
Sensor port connector 1x M12 (5 female pins)
Maximum number of sensors 10 (via multiple 4-Port SDI-12 Expansion Bars)
Depending on measurement interval and type of sensor, additional sensors may be configured.
Up to 60 SDI-12 sensors may be configured depending on cable length and sensor power requirements
Wireless protocol Bluetooth 4.0 LE
Storage 4 MB
This is the equivalent of:
> 200K GroPoint Lite soil moisture and soil temperature measurements
> 80K soil moisture and soil temperature measurements from a GroPoint Profile 4-segment sensor
Measurement interval Configurable by user
Range: 1 minute to 12 hours
Operating temperature range -20°C to 65°C (-4°F to 150°F)
Storage temperature range -20°C to 70°C (-4°F to 160°F)
Power 3.0V lithium coin cell powers the memory (included)
2 x AA alkaline batteries OR 3.6V 1x C-cell Li-ion battery powers the sensors (ordered separately)
Battery life Up to several years, depending on measurement interval and battery selection
Dimensions 11.4cm x 8.0cm x 6.0cm (4.49” x 3.15” x 2.36”)
Weight 216 g (7.62 oz)
Warranty 1-year limited parts and labour
Environmental sealing Enclosure: IP65
Push button: IP67
Sensor connectors: IP66/IP68
Order Number Part 2992

FAQs

 

Frequently Asked Questions

Does the Bluetooth SDI-12 Data Logger need to be kept in a watertight enclosure?
The Bluetooth SDI-12 Data Logger's enclosure is IP76 rated, meaning it can withstand immersion in water up to one meter (3.3 feet) for 30 minutes, tested in laboratory conditions. However, this is not considered an environmentally hardened enclosure. While it’s not necessary to enclose it in a more watertight enclosure, it is a good idea to keep it from direct exposure to the elements. Covering it with a structure and raising it up off the ground are both good ideas.

Can I access the data if I have an iPhone or iPad?
At the moment, the Bluetooth SDI-12 Data logger software “GP Reader” is only available for Android devices. Please let us know if you require iOS support (we’ll prioritize this project based on customer demand).

How do I export the data to my PC so I can analyze it with PC-based or cloud-based software?
When downloaded to your smartphone or tablet, the data is stored in a TXT, CSV or DAT file format, and the field’s name is based on the serial number of the sensor. You can use the built-in Android file explorer to transfer the file, via email or wireless transfer.

 

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