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AM2302 CAPACITIVE DIGITAL TEMPERATURE AND HUMIDITY SENSOR
AM2302 Humidity Capacitance Digital Temperature and Humidity Sensor is a temperature and humidity composite sensor with a calibrated digital signal output. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent longterm stability. Therefore the product has the advantages of excellent quality fast response strong antiinterference ability and high cost performance. Each sensor is calibrated in a precision humidity calibration chamber. The calibration coefficients are stored in the OTP memory as a program and these calibration coefficients are called internally during the processing of the detection signal. The sensor consists of a capacitive sensing element and an NTC temperature measuring element connected to a high performance 8bit microcontroller. Communication with the microprocessor via a single bus requires only one line 40 bits of data at a time high first out. Small size low power consumption long communication distance can be used in demanding applications.
Product parameters:
Temperature range: 40~80°C
Humidity range: 0~99.9%RH
Temperature detection accuracy: ±0.5 °C
Humidity detection accuracy: ±2% RH
Resolution: 0.1 ° C; 0.1% RH
Sampling period: 2s
Output signal: digital signal single bus
Supply voltage: DC3.3~5.5V