Temperature and Humidity Sensor Chip - MHT04

The MHT04 module is mainly based on the MDC04 capacitive sensing chip to collect capacitance from the capacitive high-precision humidity sensing head. Each module is calibrated for temperature and humidity before leaving the factory, and the calibration coefficients are stored in the chip's EEPROM. The host computer compensates the humidity data based on the fitting coefficients. The module communicates via the MDC04 single-bus interface, requiring only VDD, GND, and the single-bus DQ digital pin on the back to connect with the host computer.The external circuit is relatively simple, requiring only a pull-up resistor to achieve long cable and multi-node acquisition.

I. Features of the Temperature and Humidity Sensor Chip - MHT04:

Operating Temperature Range: -20°C to +85°C
Operating Voltage Range: 2.0V to 5.5V
Average Power Consumption: 8.2mA @ 3V
Humidity Measurement
- Typical Accuracy: ±2.0% RH @ 30~70% RH
- Humidity Resolution: 0.01% RH
- Measurement Range: 0~100% RH
Temperature Measurement
- Typical Accuracy: ±0.3°C @ 0~+50°C
- Resolution: 0.004°C
Digital single-bus interface, supports 100-meter communication distance, 128 nodes in series networking
Anti-electromagnetic interference, communication system includes data transmission error detection mechanism
Module Dimensions:
Without housing: 21.8±0.3*5.1±0.1*1.7±0.2 mm (length*width*thickness)
With white protective housing: 24.7±0.3*7.0±0.1*3.9±0.1 mm (length*width*thickness)

II. Applications of the Temperature and Humidity Sensor Chip - MHT04:

Warehousing

Cold Chain

Livestock

Industrial and Agricultural

Temperature and humidity monitoring in harsh environments such as medical, high humidity, low temperature, dust, and easy condensation