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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.

OTT Orpheus Mini

Pressure transducer with integrated logger

orpheus mini

The OTT Orpheus Mini has been designed for the reliable monitoring and storage of water level and temperature. The main application of the Orpheus Mini is the installation in ground water pipes and wells for groundwater monitoring. In addition, applications in open waters and tanks are possible.

OTT Orpheus Mini is equipped with a rugged, ceramic-capacitive measuring cell and a precise temperature sensor. A data logger, which can be configured individually, stores and manages the monitored measured values in a 4 MB non-volatile memory (corresponds to approx. 500,000 measured values). The power supply of the Orpheus Mini as well as the connection for downloading data and start-up are provided by the communication unit.

The infrared interface allows the data to be conveniently read out or transferred from the device with a laptop. A well structured, intuitive operating program with all the necessary functions for data output and export, configuration and calibration is supplied.


  • Easy installation in observation wells of 1" diameter and larger by adapter plates or suspension bracket
  • Power supply can optionally be provided by Lithium or Alkaline batteries
  • The batteries can easily be changed on-site
  • Longitudinally stable pressure probe cable by Cevlar core
  • Potted, hermetically sealed pressure probe
  • Saltwater resistant casing material

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What's the Easiest and Quickest Way to Start Collecting Data and Access it Anywhere?

The Answer's in the Cloud.

eTracker is a cellular modem and "virtual" cloud-based data logger in one (meaning you don't need to install a separate data logger). Simply connect your sensor and a power source to eTracker and you're done. Configure (or reconfigure) anytime from any Internet-connected device, and use Stevens-Connect to retrieve your data, or forward it to your favorite software system.

Technical Specifications

Waterlevel measurement

Measuring ranges

0 - 4 m, 10 m, 20 m, 40 m, 100 m

Accuracy, pressure sensor

± 0.05 % FS

Resolution, pressure sensor

0.01 % FS

Temperature measurement

Measuring range temperature

-25 °C - +70 °C (ice-free)

Accuracy temperature

± 0.5 °C

Resolution temperature

0.1 °C


Power supply

3 x 1.5 V LR6-cells Alkaline- or Lithium-type

Lifetime (at 1 h reading interval)

With Lithium batteries: min. 5 years
With Alkaline batteries: min. 1.5 years (high quality battery types)

Data logger


4 MB non-volatile

Number of measured values

approx. 500,000

Reading interval

1 second …to 24 hours

Storage interval

1 second …to 24 hours

Logging type - selectable

Linear, logarithmic - free progammable (logging table) for pumping tests, event triggered delta data logging


System length

1.5 m to 200 m, ±1%, ±5 cm (cable length incl. communication unit/pressure probe)


ABS, POM, 904 L (DIN 1.4539)


Communication unit (incl. batteries): approx. 0.410 kg
Pressure probe:approx. 0.300 kg


Communication unit: 400 mm L x 22 mm Ø
Pressure probe: 195 mm L x 22 mm Ø

Operating conditions

Temperature-compensated working range

-5 °C to +45 °C (ice-free)

Storage temperature

-40 °C to +85 °C

Operating temperature

-20 °C to +70 °C



Type of protection

Communication unit

IP67 (immersion depth max. 2 m duration of immersion max. 24 h)

Pressure probe


EMV limits

IEC61326/EN61326 are compliant with EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 550222 class B