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M&J UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger Quick view

Reference: UA-002-64

Brand: ONSET

UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger

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A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.  IMPORTANT INFORMATION Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
Price €100.00
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Reference: VH400-2M

Brand: VEGETRONIX

VH400 - Low-Cost Soil Moisture Sensors

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VH400 Soil Moisture Sensor Probe Specifications Power consumption: < 13mA Supply Voltage: 3.5V to 20 VDC. Dimensions See drawing. Power on to Output stable: 400 ms Output Impedance: 10K ohms Operational Temperature: -40ºC to 85ºC Accuracy at 25°C: 2% Output: 0 to 3V related to moisture content Shell Color: Red Voltage Output Curves: Curves, Piecewise...
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12120024 Electrolizador 65
  • 12120024 Electrolizador 65
  • 12120024 Electrolizador 65
  • 12120024 Electrolizador 65

12120024 Electrolizador 65

12120024

Electrolizador 65

The Electrolyzer 65 is Double-Cell PEM electrolyzer stack, for production of hydrogen from distilled water.  The center of the cell houses the hydrogen side of the two individual cells.  The two outer sides of the cell have the function of supplying water and removing the oxygen produced.  The two individual cells are connected electrically in series.  Both cells have an electrode area of 16cm2.

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Description

Description

The electrolyzer provided in this set is maintenance-free.  However, always remember to use fresh, distilled water each time and to drain the water from the storage tanks after use.

Specifications:
• Hydrogen Production Rate: 65 cm3/min
• Oxygen Production Rate: 32.5 cm3/min
• Hydrogen Storage Volume: 80 cm3/min
• Oxygen Storage Volume: 40 cm3/min
• Power Consumption: 16 Watts at 4.0 VDC
• Permissible Operating Voltage: 0 - 4 VDC
• Permissible Operating Current: 0 - 4.4 A
• Permissible Operating Pressure: 0 - 5 mbar
• Electrode Area: 2 cells at 16cm2 each
• Operating Medium: Distilled Water
• Dimensions (H x W x D): 9.9" x 9.9" x 4.7" (250 x 250 x 120 mm)
• Weight: 2.1 pounds (950 g)

About PEM Electrolyzers
The growing significance of PEM electrolyzers mirrors the development of fuel cells. Electrolyzers generate the hydrogen required by fuel cells from water in an environmentally conscious manner.  The electrical energy required for this purpose can be gained from renewable sources such as solar cells, wind farms or hydroelectric plants.

Water reacts in the electrolyzer under the influence of electrical energy according to the following formula: 2H2O = 2H2 + O2.  This process takes place in the MEA (membrane electrode assembly).  The MEA consists of the cathode, the anode, and a special polymer membrane (PEM) which is permeable to protons but which presents a barrier to electrons.  Your h-tec electrolyzer functions on the PEM principle. The energy stored in chemical form in the gases can be converted back to electrical energy in a fuel cell as and when required.

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