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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

(0)
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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  • PAYMENT METHODS

    PAYMENT METHODS
OXYGEN
OXYGEN

OXYGEN

OXYGEN

There are two types of oxygen sensors: those that measure gaseous oxygen and those that measure oxygen dissolved in a solution.

There are multiple techniques for measuring gaseous oxygen.

Three widely used approaches for environmental applications are:

Galvanic cell sensors.

Polarographic sensors.

Optical sensors.

Galvanic cells and polarographic sensors operate by electrochemical reaction of oxygen with an electrolyte, which produces an electric current.

The electrochemical reaction consumes a small amount of oxygen.

Unlike polarographic oxygen sensors, galvanic cell sensors are self-powered.

Optical oxygen sensors use optical fiber and a fluorescence method to measure oxygen through spectrometry.

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