Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	AM2301
Communication Protocol	Single-Bus Digital
Humidity Range	0-100% RH
Temperature Range	-40°C to 80°C
Humidity Accuracy	±2% RH
Temperature Accuracy	±0.5°C
Operating Voltage	3.3V - 5.5V DC
Sampling Period	2 seconds
Package Type	Module with PCB
Application	IoT, HVAC, Weather Stations

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for my weather station project

This sensor module works flawlessly with my Arduino setup. The single-bus interface makes wiring incredibly simple, and the readings are consistent with my professional hygrometer.

Anonymous

Mar 21, 2026

Rating: 5/5

Best budget sensor

Compared to other sensors in this price range, the AM2301 offers superior accuracy. Shipping was fast, and the module arrived well-packaged.

Anonymous

Mar 21, 2026

Rating: 5/5

Exactly what I needed

Compact form factor and robust performance. It handles the humidity in my greenhouse without any issues. Highly recommended for Raspberry Pi projects.

Anonymous

Mar 08, 2026

Rating: 4/5

Solid performance

Works well out of the box. The library support for ESP32 is excellent. Just ensure you have a pull-up resistor if your board doesn't include one internally.

Anonymous

Mar 03, 2026

Rating: 5/5

Reliable and accurate

I have deployed ten of these in different rooms. They all report stable data over the last three months. The response time is quick enough for real-time monitoring applications.

Anonymous

Mar 02, 2026

Rating: 4/5

Good value, easy to integrate

Great little sensor for the price. I used it for a smart home humidity monitor. The only reason for 4 stars is that the documentation could be slightly more detailed for beginners.

5 FAQ

Q: How often should the sensor be calibrated?

A: The AM2301 is factory calibrated. Under normal operating conditions, it maintains accuracy for years without recalibration. Extreme environments may require periodic verification against a reference standard.

Q: Is this module compatible with 5V logic levels?

A: Yes, the AM2301 module operates within a voltage range of 3.3V to 5.5V, making it fully compatible with both 3.3V and 5V microcontrollers.

Q: Does this come with a waterproof casing?

A: No, this specific listing is for the bare PCB module. The sensing element itself has some protection, but for outdoor use, we recommend purchasing a separate waterproof enclosure.

Q: What is the maximum cable length recommended for the single-bus connection?

A: For reliable communication, we recommend keeping the cable length under 2 meters. If longer distances are required, a stronger pull-up resistor or signal buffer may be necessary.

Q: Can I connect multiple sensors to the same data pin?

A: Yes, you can connect multiple AM2301 sensors to the same data pin using the single-bus protocol, provided each sensor has a unique address or is polled sequentially as per the datasheet instructions.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

DHT22 Single-Bus Digital Temperature & Humidity Sensor AM2302 Module Electronic Building Blocks

$10.42

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

GY-30 302 Digital Light Intensity Illuminance Sensor BH1750FVI Module Light Sensor Ball

$7.41

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Soil Moisture Sensor Probe Soil Moisture Meter Detection Module Sensor Separate Probe

$2.39