【High Accuracy Settingal Monitoring】 10-bit resolution; ±0.3°C temperature accuracy (0°C to 65°C); ±2% RH humidity accuracy (20% to 80% RH); I²C interface with optional address 0x44 or 0x45; Suitable for smart home and agricultural monitoring systems
【Wide Voltage Compatibility】 Operates on 2.4V to 5.5V DC; supports 3.3V and 5V systems; low power consumption (0.15mA active mode; 0.1µA sleep mode); suitable for battery-powered applications and portable devices
【Fast Response and Reliable Performance】 8-second response time (τ63%) for temperature and humidity; built-in heater prevents condensation effects; Reliable design (-40°C to +125°C operating range); durable and dust-proof DFN-4 package
【Easy Integration and Universal Compatibility】 I²C protocol compatible with for Arduino, for Raspberry Pi, and STM32; requires external 4.7kΩ pull-up resistors on SCL and SDA; simple setup with VIN and GND connections; minimal configuration needed for quick deployment
【Self-Calibrating and Long-Term Stability】 Automatic calibration every 30 days via 0x3041 command; self-compensating algorithm reduces drift over time; no need for external calibration; reliable performance in long-term Settingal monitoring applications

Product Parameters:

Input Voltage: 2.4V ~ 5.5V DC (Wide Voltage Compatible, Supports 3.3V/5V Systems)

Temperature Range: -40℃ ~ +125℃ (Resolution: 0.01℃)

Humidity Range: 0% RH ~ 100% RH (Resolution: 0.01%)

Accuracy: Temperature ±0.3℃ (Typical, 0℃~65℃), Humidity ±2% RH (Typical, 20%~80% RH)

Interface: I²C Digital Interface (Address 0x44 or 0x45 Selectable, Default 0x44)

Response Time: 8 Seconds (τ63%, Synchronized Output)

Power Consumption: Operating Current 0.15mA (Single-Measurement Mode), Standby Current 0.1μA (Sleep Mode)

Package: DFN-4 Metal (Moisture and Dust Resistant)

Operating Temperature: -40℃ ~ +125℃ (Reliable)

Pin Functions:

VIN: Power Input (2.4V~5.5V DC, Parallel 100nF Decoupling Capacitor Recommended)

GND: Power Ground

SCL: I²C Clock Line (Requires External 4.7kΩ Pull-up Resistor to VIN)

SDA: I²C Data Line (Bidirectional, Requires External 4.7kΩ Pull-up Resistor to VIN)

ADDR: I²C Address Selection (Ground for 0x44, Connect to VIN for 0x45)

FAQ:

1.
I²C Communication Failure?

Confirm address (Default: 0x44; ADDR to VIN: 0x45).

Ensure external 4.7kΩ pull-up resistors on SCL/SDA.

Add 10μF electrolytic + 100nF ceramic capacitors between VIN and GND to suppress noise.

2.
Abnormally High Humidity Readings?

Enable built-in heater (Command 0x30A2) to prevent condensation.

Avoid airflow (e.g., AC vents) and obstructing the sensor surface.

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