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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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VH400 - Low-Cost Soil Moisture Sensors Quick view

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...
From Price €78.00
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1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ
  • 1-Cell Rebuildable PEM Fuel Cell Kit MYJ

1-Cell Rebuildable PEM Fuel Cell Kit

12120032

1-Cell Rebuildable PEM Fuel Cell Kit

The H-TEC 1-cell rebuildable PEM fuel cell kit contains a proton exchange membrane fuel cell (PEMFC) that can be completely disassembled and reassembled, especially for educational and research purposes.

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Description

Description

The PEM fuel cell can run in Hydrogen/oxygen or hydrogen/air operation modes.  All the tools needed for assembly are included!


In a fuel cell, chemical energy is converted directly into electrical energy, i.e. without use of a combustion process.  Hydrogen and oxygen (or ambient air) supplied from outside the process react electrochemically to form water, generating electrical current and heat in the process.  The oxygen can be supplied in pure form, or in the form of ambient air.
The membrane-electrode unit forms the heart of the PEM fuel cell.  The following reactions take place within it:

• Cathode: 4e- + 4H+ + O2 → 2H2O
• Anode: 2H2 → 4H+ + 4e-
• Complete Reaction: 2H2 + O2 → 2H2O

Technical Specifications:
• Power in Hydrogen and Oxygen Mode: 1 W
• Power in Hydrogen and Air Mode: 800 mW (with Oxygen Plate)
• Power in Hydrogen and Air Mode: 1.2 W (with Air Plate)
• Electrode Area: 16 cm²
• Generated Voltage: 0.4 - 0.96 V DC
• Requires Commercial distilled (deionised) water with a conductivity of < 2 μS/cm
• Dimensions (H x W x D): 3.9" x 3.14" x 3.07" (98 x 80 x 78 mm)
• Weight: 8 oz (225 g)

 

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12120032
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