AHT21, a new generation of temperature and humidity sensors, establishes a new standard in size and intelligence:
it is embedded in a double-row flat leadless SMD package suitable for reflow welding, with a base of 3x3mm and a height of 0.8mm.
The sensor outputs a calibrated digital signal in standard I2C format.
AHT21 is equipped with a new design of ASIC chips, an improved semiconductor capacitive humidity sensor and a standard on the piece of temperature sensing element,
its performance has been greatly ascend beyond even the reliability level of the previous generation of sensors, a new generation of temperature and humidity sensor,
the improved to make it more stable performance in harsh environments.
Mainly used for HVAC, dehumidifier, testing and testing equipment, consumer goods, automobile, automatic control, data logger, weather station, home appliances,
humidity regulation, medical and other related temperature and humidity detection and control.
• Complete calibration
• Digital output, I C interface
• Excellent long-term stability
• Use SMD packaging for reflow soldering
• Quick response and strong anti-interference ability
Power supply: DC2.0V-5.5V
Temperature Measuring range: - 40 ~ + 120 ℃
Humidity Measurement range: 0~100%RH
Humidity accuracy: ±2%RH @25℃
Temperature accuracy: ±0.3℃
Temperature Resolution : 0.01℃
Humidity Resolution: 0.024%RH
Output signal: I2C signal
5 X AHT21 Temperature Humidity Sensor Chip