Rotor Vertical Water Meter,Mulit-Jet Water Flow Meter,Super Dry Water Flow Meter,Super Dry Water Meter Shandong xuheng instrument co., ltd , https://www.xuhengmeter.com
Sensirion Introduces the HT21, the World's Smallest Digital Humidity and Temperature Sensor. At the same time, the sensor has passed various performance tests. Currently, a large number of sensor samples have been sent to interested users. Products in mass production in April 2010. SHT21 is a newly designed precision sensor chip, DFN 3-0 package. In addition to the humidity sensing area, the chip package uses the overmolding process. In this way, the component size is reduced to 3x3mm with a height of 1.1mm. In addition, the overmolding process has excellent aging and resistance to the surrounding environment (such as condensation and other harsh conditions, etc.) in order to ensure the long-term stability of the product. The sensor is fully calibrated to provide an I2C digital interface for customer convenience. Analog output mode (PWM) is also available upon request. Digital communications can greatly reduce power consumption: normal working condition, power consumption can be less than 3μW, such as extending the measurement interval, power consumption can be further reduced. Typical humidity sensor accuracy ± 2% RH (20-80% RH range); temperature accuracy ± 0.3 ℃ (25-42 ℃ range). The SHT21 complies with the automotive industry standard AEC-Q100. Moreover, the company has a rigorous quality management process that tests the functionality of each sensor through electronic scanning to ensure product quality. At the same time, the user can also read the product tracking information stored on each chip by sending a simple instruction to the sensor. SHT21 reflow soldering, and does not affect product performance. The sensor is available in Tape and Reel for standardized production. All of these features make the SHT21 the best choice for mass production.