TENSTAR 3pcs AHT20+BMP280 Temperature & Humidity + Air Pressure Sensor Digital Sensor Module – the ultimate high‑precision solution for smart IoT projects, environmental monitoring, HVAC systems, and weather stations. Each pack contains three reliable modules that combine the ultra‑low‑power AHT20 sensor with the robust BMP280 air pressure sensor, delivering accurate readings in a compact footprint.
Product Overview
These dual‑sensor modules are designed for developers, hobbyists, and industrial engineers who demand reliable, low‑power performance. With I²C communication, the AHT20 measures temperature and humidity, while the BMP280 provides precise barometric pressure and temperature data. Together they enable advanced features like altitude calculation, weather forecasting, and indoor climate control.
Key Highlights
- High‑precision AHT20 (±0.3 °C, ±2 %RH) for accurate temperature & humidity readings.
- Advanced BMP280 (±1 hPa, ±0.1 °C) for reliable barometric pressure and altitude calculation.
- Compact 3.3 V or 5 V I²C interface – plug‑and‑play with Arduino, Raspberry Pi, ESP32, and more.
- Low power consumption (<1 mA in active mode) ideal for battery‑powered applications.
- Robust 3‑pack set – perfect for multi‑point monitoring or redundancy.
- Wide operating temperature range: –40 °C to +85 °C.
- Sturdy PCB mounting with standard 0.1 in. pitch headers.
- Compliant with ISO/IEC 17025 laboratory standards.
Technical Specifications
- AHT20: Temperature range –40 °C to +80 °C, Humidity 0 %–100 % RH, Accuracy ±0.3 °C, ±2 %RH.
- BMP280: Pressure range 300 hPa–1100 hPa, Accuracy ±1 hPa, Temperature range –40 °C to +85 °C, Accuracy ±0.1 °C.
- Power supply: 2.5 V – 5.5 V (recommended 3.3 V).
- Communication: I²C (0.7 V–3.6 V), 100 kHz/400 kHz fast mode.
- Package: 2.5 mm × 2.5 mm × 1.2 mm (AHT20) + 3.5 mm × 3.5 mm × 1.5 mm (BMP280).
- Operating current: <1 mA (standby), 3 mA (active).
Applications
From smart home thermostats and weather stations to industrial HVAC control and automotive climate monitoring, these modules fit seamlessly into any project that requires precise environmental data. Their low power profile makes them ideal for IoT gateways, wearable devices, and remote sensor networks.
Why Choose TENSTAR?
Our modules are manufactured under stringent quality control, ensuring consistent performance across every unit. With a generous 12‑month warranty and comprehensive technical support, TENSTAR delivers reliability you can trust for your next innovation.
Order your 3‑pack AHT20+BMP280 Sensor Module today and elevate your project with high‑precision, low‑power environmental sensing.
Price: Original price was: $ 7.49.$ 3.67Current price is: $ 3.67.

