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Teledesign TS4000 900MHz UHF/VHF

True cloud-based sensor configuration, logging, reporting and data analysis all-in-one.


Shark (RS232/RS485 Bluetooth Serial Adapter)


A cloud-based interface to configure hardware, visualize data, analyze measurements, manage alarms, calculations, and set up data routing.

MEASUREMENTS TO MIND (M2M) is a growing suite of Stevens products that embraces cloud-computing with an all-inclusive vision of shortening the communication path from the sensors to data on-line. That is, what the sensors MEASURE the MIND sees.

The product finder lets you explore our catalog visually and filter products by type of monitoring, manufacturer, and more.


SOLO (smart SDI-12 power manager)
JL-2 (solar charge controller)
Power Supplies
Solar Panels

Smart SDI-12 power manager that also provides remote power cycling.

The product finder lets you explore our catalog visually and filter products by type of monitoring, manufacturer, and more.

The product finder lets you explore our catalog visually and filter products by type of monitoring, manufacturer, and more.

HydraProbe POGO mini

Rugged, accurate and easy-to-use portable soil data collection

Take soil measurements anywhere for those applications not requiring a permanent soil monitoring system. Your Apple or Android device communicates wirelessly with the HydraProbe POGO Mini using bluetooth.

Simply insert the probe into the soil, and tap on the “Sample” button in the HydraMon app. The sensor can be installed into the soil with or without the detachable tracking pole.

The app will display soil moisture content, temperature, conductivity, and dielectric permittivity on-screen for immediate viewing. The date and time of each measurement is recorded along with the soil measurement data.

All data can be saved and emailed as a .CSV file for analysis in Excel. Notes and location names can be added to the data records.

The HydraProbe POGO mini features a rugged, anodized aluminum housing that contains a rechargeable battery good for a full day’s heavy use. It comes with a detachable trekking pole for easy on-the-go measurements.

The HydraProbe POGO Mini uses the HydraProbe soil sensor which employs a Ratiometric Dielectric Coaxial Impedance method which is more accuracy and stable than TDR and frequency based technologies.

Patented sensor

Patented sensor instantly measures moisture, EC (salinity) and soil temperature.

Patented sensor

Integrated Bluetooth wireless for easy hands-free operation with free smartphone app.

Patented sensor

Extremely durable with an Industry-leading warranty.

Patented sensor

Cost effective solution for portable on-the-go soil monitoring.

Pogo ini turf soil sensor
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    Comfortable use

    The top extenson is sized to fit most hiking poles to provide height-adjustable comfort when taking samples.

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    Integrated Bluetooth wireless

    Integrated Bluetooth wireless radio lets you easily connect any Apple or Android device running the free app.

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    Rechargeable battery

    Rechargeable battery provides a full day of intense use between charges.

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    Durability and consistent accuracy

    Consistent accuracy without the need to calibrate, ever. The durable sensor and marine-grade stainless steel probes are coverd by an industry-leading 2-year warranty.

HydraProbe Pogo mini with hiking pole

Attach any standard hiking pole (one is included) for an adjustable, comfortable height.

The free app lets you control the POGO mini via a wireless Bluetooth connection. Samples are analyzed according to your customized desired range, displayed and logged.

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Technical Specifications

Part No.


Battery type

Rechargeable NiMH battery, 3.6 V / 300 mAh

Wireless protocol



Anodized aluminum with an acetal endpiece

Operating temperature

14°F to 149°F (-10°C to +65°C)

Soil probe

Stevens HydraProbe (ratiometric dielectric coaxial impedance)

Soil tine assembly

Marine grade stainless steel

Parameters measured

Soil moisture, temperature, bulk electrical conductivity, dielectric permittivities


Adjustable—70 cm to 153 cm including both the hiking pole and the sensor body
Sensor body is 20 cm in length including tines, 7.5 cm in diameter at the top of the main body


Range: From completely dry to fully saturated (from 0% to 100% of saturation)
Accuracy: ± 0.01 WFV for most soils, ± ≤0.03 max for fine textured soils*

Bulk electrical conductivity

Range: 0 to 1.5 S/m
± 2.0% or 0.02 S/m whichever is typically greater*

Real dielectric permittivity (isolated)

Range: 1 to 80 where 1 = air, 80 = distilled water
Accuracy: < ± 0.5% or ± 0.2 dielectric units


Range: -10°C to +60° C
Accuracy: ± 0.3° C

* Accuracy may vary with some soil textures