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    Temperature and Humidity Sensor, Duct/Wall Mounted, One-wire

    Temperature and humidity sensor includes a capacitive humidity sensor and a digital temperature sensor, built-in one high-performance 8-bit SCM, standard one-wire interface, duct and wall mounted, all automated calibration, completely interchangeability, with excellent quality, fast response, strong anti-interference ability, high cost performance, low power consumption, long signal transmission distance above 20m.
    SKU: ATO-TAHS-AM2305/5A
    30-day Returns
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    Delivery date: 6-12 days

    Temperature and humidity sensor has a capacitive humidity sensor and a digital temperature sensor, standard one-wire interface, duct and wall mounted.

    Application: Temperature and humidity sensor is widely used in HVAC, dehumidifiers, automobile, data loggers, humidity regulators, and humidity detection and control system.

    Item AM2305B AM2305A
    Weight 40g 50g
    Dimension Ф16, length 97.4mm Ф16, length 150mm
    Communication mode One-wire
    Supply voltage DC 3.3-5.5V DC 3.3-5.5V
    Measuring range of relative humidity 0~99.9%RH
    Measuring range of temperature -40~+80℃
    Accuracy of humidity ±2%RH
    Accuracy of temperature ±0.3℃
    Resolution 0.1℃/0.1%RH
    Long-term stability <0.5%RH/year, <0.1℃/year
    Power consumption <300μA
    Sampling period 2s
    Response time <5s
    Housing material ABS Aluminum alloy
    Working environment Temperature: -40~80℃, humidity: 0~99.9% no condensation
    Storage environment Temperature: 0~60℃, humidity: <95%RH
    Wiring 1 red: VDD, 2 yellow: SDA (serial data), 3 black: GND

    Dimensional drawing (unit: mm):
    Temperature and humidity sensor dimensional drawing
    Pin assignment:
    Temperature and humidity sensor AM2305A pin assignment


    One-wire Temperature and Humidity Sensor Details

    Tips: How to set up a temperature and humidity sensor?
    The humidity sensor is not sealed. In order to protect the measurement accuracy and stability, the temperature and humidity sensor should not be used in acidic, alkaline and organic solvents. Environment with much dust shall also be avoided. To accurately reflect the humidity of the detected space, we should avoid placing the sensor in the corner which is close to the wall or the air is not well circulated. If the detected room is too large, several temperature and humidity sensors should be placed.
    Some temperature and humidity sensors have higher requirements to the power supply, otherwise the measurement accuracy will be affected, or the sensors may interfere with each other and even don't work. Therefore, please provide suitable power supply with required accuracy according to requirements in the application.
    When the temperature and humidity sensor needs long-distance signal transmission, we should pay attention to the attenuation of the signal. When the transmission distance is more than 200m, a temperature and humidity sensor with frequency output signal is recommended.

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