Umwelt-Geräte-Technik GmbH (UGT) products

The Tensio 100 is the origin of the UGT-tensiometer technology and has been continuously further developed for over more than 25 years. It is a cost-efficient tensiometer type that is especially designed for easy and fast mobile pressure head measurements in the field. The Tensio 100-set comprises a V2A-insertion auger for quick installation, as well as a protective tube for transportation, in which the tensiometer is kept permanently moist for immediate use and is protected from mechanical damage. In the tensiometer head, made of transparent acrylic glass, air inclusions are easily recognizable. The pre-tensioning screw enables an easy refilling even in the field. Additionally, this screw allows to preset a tension to reduce the measurement time to less than 3 seconds per measurement (from installation to reading).

The Septum tensiometer permits several tensiometers to be read out using only one instrument and there fore offers a favourably priced alternative to the comprehensive determination of soil moisture tension with many measurement points. The topside of the tensiometer is sealed with a silicone septum so that the hand meter can be attached quickly and simply with a needle. The septum recloses automatically when the meter is removed. It can be replaced simply because itis screwed on using a GL18 threador used as a silicon plug dependingon design. The ceramic cup(P80; 20 x 50 mm) is mountedon a transparent acrylic tube (Ø 20 mm) with level scale. It is therefore easy to read the level of the tensiometer.

The laboratory tensiometer with acrylic glass head and highly sensitive pressure transducer offers all the benefits of a compact tensiometer. The ceramic cup with 6.5 mm diameter and a length of 20 mm provides highly accurate measurements with a minimum destruction of the soil. An auger set for installation and minimization of disturbing effects may be obtained from UGT as accessories. Air bubbles are easy to recognise and eliminate through the acrylichead with bleed screw. The tensiometers can be installed in any position. They are ideally suitedto determine the soil moisture tension in test setups in laboratory scale. A laboratory interfaceis also supplied for direct connectionto a PC.

The standard version of the UMP-1 sensor is designed for the application with a cable connection to a data logger. The data logger provides the power supply of the UMP-1 and stores the collected data. The data can either be read out by using a laptop with an interface cable connection to the logger or by remote data transmission. This design of the UMP-1 is especially suitable for measurement sites with multiple sensors (in connection with a data logger) and for long term observations (e.g. hydrological measurement sites or lysimeters).

The UMP-1 BT sensor is the wireless version of the UMP-1 sensors and opens up the market for smartphone based measuring technology. Measurement data are transmitted via Bluetooth directly to and stored on an Android smartphone.  The necessary app can be downloaded from the Google Play Store and installed by the user on any Android smartphone.  As an additional option, our complete package includes an outdoor-capable smartphone with preinstalled app. Up to 7 probes can be managed simultaneously using the app, and measurement data can be stored and visualized. During measurement, the data can be depicted as graph or as table of readings.