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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.
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VH400 - Low-Cost Soil Moisture Sensors Quick view

Reference: VH400-2M

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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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Double Electrolyzer Kit
  • Double Electrolyzer Kit
  • Double Electrolyzer Kit

Double Electrolyzer Kit

12120023

Double Electrolyzer Kit

The Double Electrolyzer Kit (Formerly Electrolyzer 10) is a Double-Cell PEM Electrolyzer with water tanks, hydrogen and oxygen storage tanks.  The Double Electrolyzer Kit produces and stores hydrogen and oxygen simply by adding de-ionized water and an electric load.

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.

Technical Specifications:
• Hydrogen Production Rate: 20 cm3/min @ 1.5A
• Oxygen Production Rate: 10 cm3/min @ 1.5A
• Maximum Permissible Voltage: 4VDC
• Power Needed: 6 W
• Hydrogen Gas Storage: 80cm3
• Oxygen Gas Storage: 80cm3
• Dimensions (H x W x D): 3.5" x 6.7" x 5.3" (90 x 170 x 135 mm)
• Weight: 10.2 oz (290 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 gases produced can be collected in storage tanks (H-TEC Storage 30 or Horizon 30mL Cylinders).  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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