---
product_id: 46122350
title: "2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15"
brand: "gowoops"
price: "HK$161"
currency: HKD
in_stock: true
reviews_count: 7
category: "Gowoops"
url: https://www.desertcart.hk/products/46122350-2pcs-dht22-am2302-digital-humidity-and-temperature-sensor-module-arduino
store_origin: HK
region: Hong Kong
---

# 0-100% RH humidity range 3.3V & 5V dual voltage support ±0.5°C accuracy temp sensor 2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15

**Brand:** gowoops
**Price:** HK$161
**Availability:** ✅ In Stock

## Summary

> 🌍 Master your microclimate with pro-grade precision!

## Quick Answers

- **What is this?** 2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15 by gowoops
- **How much does it cost?** HK$161 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/46122350-2pcs-dht22-am2302-digital-humidity-and-temperature-sensor-module-arduino)

## Best For

- gowoops enthusiasts

## Why This Product

- Trusted gowoops brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Minimalist design with low power consumption (100mW) fits any setup effortlessly
- • **DIY Maker’s Dream:** Perfect for prototyping IoT, robotics & smart home projects with easy wiring
- • **Robust Operating Range:** Works flawlessly from -40°C to 80°C, ideal for diverse applications
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino, Raspberry Pi & all major microcontrollers
- • **Precision Climate Control:** Ultra-accurate ±0.5°C & ±2% RH readings for reliable environment monitoring

## Overview

The Gowoops 2pcs DHT22/AM2302 sensor modules deliver high-precision digital temperature and humidity measurements with ±0.5°C and ±2% RH accuracy. Compatible with 3.3V and 5V systems, they easily connect to Arduino, Raspberry Pi, and other microcontrollers, making them ideal for DIY electronics, IoT, and robotics projects. Their wide operating range (-40°C to 80°C) and low power consumption ensure reliable performance across diverse environments.

## Description

desertcart.com: Gowoops 2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15 : Electronics

Review: inexpensive, worked great, average quality. - I used these to make an experimental thermostat for my house. They worked perfectly and I had a great time playing around with the project. They are easy to use and easy to wire. The quality seemed about average for this type of product. They were pretty cheap too!
Review: Works well if wired correctly. - I bought this to monitor temperature and humidity in a proofing box. I'm using a RPI 4 to read the sensors. I used a python library by Adafruit to take the sensor readings. The schematic on their site (and any other site that comes up when you google this thing) all say to wire it to 3.3v constant power. When its constantly powered it works intermittently. Sometimes it'll run for hours, sometimes it runs for 20 minutes and stops. Powering off the RPI resents the sensor and it'll work again. To fix this, I wired power to GP17 (instead of 3.3 constant), and I turn it high (turn on the power to the pin) take my temperature reading, then turn GP17 back to low (power off). After making this modification, it's been very stable now for weeks on end. All other wiring for it should stay the same.

## Features

- The sensor can be operated with both 3.3V and 5V, it is compatible for connection to all standard boards such as Arduino, RN-Control, Raspberry Pi and all other microcontrollers.
- This sensor can build thermometer electric circuit microcontroller, it can be used for robotics development kit, suit for engineer to make projects.
- Suit for School Beginners: Perfect intro sensor to programmable based on Arduino electronic and IoT robotics.
- Used for automatic control, weather stations, home appliances, humidity regulators, medical treatment, dehumidifiers, etc.
- Temperature range: -40 ℃ ~ 80 ℃, Temperature measurement accuracy: ± 0.5 ℃, Humidity measuring range: 0~100%RH, Humidity measurement accuracy: ±2%RH

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073F472JL |
| Additional Features | Portable |
| Best Sellers Rank | #779 in Single Board Computers (Computers & Accessories) |
| Brand | Gowoops |
| Built-In Media | DHT22/AM2302 Digital Temperature Humidity Sensor Module, DuPont wire |
| CPU Model Number | 43221-4105 |
| Color | DHT22*2 |
| Compatible Devices | Arduino, Raspberry Pi, Microcontrollers |
| Connectivity Technology | USB, Wi-Fi |
| Customer Reviews | 4.4 4.4 out of 5 stars (342) |
| Display Type | Digital |
| Graphics Card Interface | Integrated |
| Graphics Description | Dedicated |
| Hardware Interface | USB |
| Human-Interface Input | Buttons |
| Manufacturer | Gowoops |
| Model Name | Gowoops Digital Humidity and Temperature Sensor Module |
| Model Number | 43221-4105 |
| Native Resolution | Digital |
| Personal Computer Design Type | Barebone |
| Power Consumption | 100 Milliwatts |
| RAM Type | DDR2 SDRAM |
| Screen Size | 2.6 Millimeters |
| Specific Uses For Product | Business |
| Style Name | Minimalist |
| Total Usb Ports | 2 |
| UPC | 705586405750 |
| Wireless Compability | 802.11n |
| Wireless Network Technology | Wi-Fi |
| Wireless Technology | Wi-Fi |

## Product Details

- **Brand:** Gowoops
- **Color:** DHT22*2
- **Connectivity Technology:** USB, Wi-Fi
- **Graphics Card Description:** Dedicated
- **Included Components:** DHT22/AM2302 Digital Temperature Humidity Sensor Module, DuPont wire
- **Model Name:** Gowoops Digital Humidity and Temperature Sensor Module
- **Personal computer design type:** Barebone
- **Screen Size:** 2.6 Millimeters
- **Special Feature:** Portable
- **Specific Uses For Product:** Business

## Images

![2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15 - Image 1](https://m.media-amazon.com/images/I/71t0doKtw-L.jpg)

## Questions & Answers

**Q: Does this include the resistor you'd normally have to wire in with a standalone DHT22?**
A: Yes, this does actually include the resistor.  The DHT22 itself is the white part, and has four pins coming out — one of which is not meant to be used.  But in this product, those four pins (including the unused one) are soldered into another board (the black thing you see in the picture coming out of the white thing), which has a couple surface-mounted components, and three open pins for your connections.  One of the surface-mounted components is a resistor with code "512" on it, which translates to 5.1kΩ.  The other is a capacitor, but I can't see any code on it.  The manufacturer of the DHT22 recommends a 100nF capacitor between VDD and GND "for wave filtering".  Anyway, I connect these directly to the 3.3V, GND, and GPIO on my raspberry pi, and it works perfectly without any additional resistor.

**Q: What would be the maximum length of cable one could use to connect the sensor to a Pi?  I imagine that using 5v would produce a better result.**
A: The maximum cable length can be up to 30 meters / 98 feet if you use 5 V power and 1 meter / 3.3 feet if you use 3.3 V power

**Q: Does the dht library provided by adafruit work with these sensors?**
A: I don't know about using adafruit dht library. I use the Troyka DHT library which allows to obtain data of relative humidity and temperature in degrees Celsius, Kelvin and Fahrenheit. Supported sensors: DH11, DHT21, DHT22.

**Q: When using with a PI2, the sensor became very hot to the touch and had a terrible smell. Is the sensor faulty?**
A: Hi, these sensors often overheat due to misconnections. I suggest you check your connections, including jumper continuity. Our sensor modules have a clear pinout silkscreen on them and you need to follow the silkscreen to connect them. If there is a reverse positive and negative connection, a wrong pinout or if the supply voltage is outside the marked voltage operating range, it can cause such problems as you described.

We use original sensors and extremely high quality PCB and components to produce this module, they can only be used by customers if they have passed strict factory tests, and it is the first time we encountered such a problem, no matter what, we will provide you with fast and professional after-sales service.

Do you have an Arduino? Then I suggest you try the simple Arduino DHT tutorial. Power up your Arduino from your computer's USB port. Then see if you can get a real value. This way you can find out if your sensor is good or not. If you still don't get any accurate values, contact me for a replacement.

## Customer Reviews

### ⭐⭐⭐⭐⭐ inexpensive, worked great, average quality.
*by M***D on June 8, 2025*

I used these to make an experimental thermostat for my house. They worked perfectly and I had a great time playing around with the project. They are easy to use and easy to wire. The quality seemed about average for this type of product. They were pretty cheap too!

### ⭐⭐⭐⭐⭐ Works well if wired correctly.
*by J***. on January 16, 2022*

I bought this to monitor temperature and humidity in a proofing box. I'm using a RPI 4 to read the sensors. I used a python library by Adafruit to take the sensor readings. The schematic on their site (and any other site that comes up when you google this thing) all say to wire it to 3.3v constant power. When its constantly powered it works intermittently. Sometimes it'll run for hours, sometimes it runs for 20 minutes and stops. Powering off the RPI resents the sensor and it'll work again. To fix this, I wired power to GP17 (instead of 3.3 constant), and I turn it high (turn on the power to the pin) take my temperature reading, then turn GP17 back to low (power off). After making this modification, it's been very stable now for weeks on end. All other wiring for it should stay the same.

### ⭐⭐⭐⭐ Good product, some frustration using it in C code
*by M***N on August 14, 2022*

The Python libraries provided by hobby supply vendors are probably fine for this sensor. I scrounged some C code which appeared to work but in less than a day the sensor would stop responding. The code seemed OK based on the somewhat cryptic datasheet the hobby supply sites provide. But some more digging found a more thorough protocol description on the waveshare web site. Refactoring using the new information resulted in no errors after 48 hours of operation. Amazon does not allow links to external sites but you can probably find the waveshare page by searching on: waveshare wiki DHT22_Temperature-Humidity_Sensor In case that does not work this is the pertinent information: We will present the steps for data reading in the communication between the host and the sensor. Step 1 After the AM2302 is powered up (please wait 2s for AM2302 to become stable. In this period, no command will be sent out on device reading.), the sensor tests the environment temperature and humility and records relative data. When finished, the sensor enters the Sleep mode automatically. And the SDA data line of AM2302 is pulled up and remains HIGH as the effect of the pull-up resistor. At this moment, the pin SDA of AM2302 is in the INPUT state, detecting any possible external signal. Step 2 The Microprocessor I/O is set to OUTPUT and outputs a LOW level for more than 800us (The typical hold time is 1ms). Then, the microprocessor I/O is set to INPUT and the bus will be released. At this moment, the microprocessor I/O (the SDA data line of AM2302) goes HIGH as the effect of the pull-up resistor. After the host released the bus, AM2302 sends out a response, a LOW level of 80ms, and then outputs a HIGH level of 80ms to inform the peripheral to receive data. The signal transmission is shown as below: IMAGE OMITTED - see web page Step 3 After the AM2302 sends the response, the SDA outputs a string of 40 bits serial data continuously and the microprocessor receives the data according to the changes of I/O level. Bit data "0" signal: the level is LOW for 50ms and HIGH for 26-28ms; Bit data "1" signal: the level is LOW for 50ms and HIGH for 70ms; The relative signal diagram is shown below: IMAGE OMITTED - see web page After the SDA of AM2302 outputted the 40 bits of data, it remains LOW level for 50ms, and then switches to INPUT state and goes HIGH as the effect of the pull-up resistor. At the same time, the AM2302 internally re-tests the environmental temperature and humidity and records the relative data. When finished, the MCU will enter the Sleep mode automatically. Only when the MCU receives the new start signal from the host, the sensor will wake up and enter the working state.

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-18*