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產品介紹

TH2

Temperature/Humidity Data Logger

The TH2 is a data logger designed for easy and reliable tracking of “air quality” conditions. It has a built-in temperature sensor has a life span from 2 to 5 years
under normal circumstances, and is easily replaceable in the field so you can always be assured of accurate readings.

Accessories: RH-002 replaceable RH sensor, EH-020 remote temperature and relative humidity probe, ET Thermistor temperature probes of any NTC thermistor temperature probe.

Specifications: Four channels: One internal temperature sensor and one internal RH sensor. The remaining two channels are used by the EH-020 for external temperature and external RH monitoring. Changes in relative humidity cause the resistance of the electrically-conducting surface of the water (RH sensor) to vary. The TH2 measures the resistance and converts the reading to a percentage of RH. All RH readings are then temperature compensated by simultaneously-taken temperature readings from the RH sensors companion thermistor. External channels can also be used to measure temperature alone (with an ET thermistor probe), or can measure resistance.

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