> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). # Humidity Sensors Humidity and moisture sensors — relative humidity (SHT31, SHT40, DHT22, etc.), soil moisture sensors, and combined temperature/humidity breakouts. **URL:** https://littlebirdelectronics.com.au/collections/humidity-sensors — [Markdown](https://littlebirdelectronics.com.au/collections/humidity-sensors.md) ## Products (140) --- ### [SparkFun MicroMod Environmental Function Board](https://littlebirdelectronics.com.au/products/sparkfun-micromod-environmental-function-board.md) **Brand:** SparkFun **Price:** $337.05 **Stock:** In stock **SKU:** SF-SEN-18632 The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality (SGP40), humidity & temperature (SHTC3), and CO2 concentrations (STC31) in your indoor environment. To make it... [View product](https://littlebirdelectronics.com.au/products/sparkfun-micromod-environmental-function-board) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-micromod-environmental-function-board.md) --- ### [MTH02 Digital Temperature Humidity Sensor](https://littlebirdelectronics.com.au/products/mth02-digital-temperature-humidity-sensor.md) **Brand:** Elecrow **Price:** $12.25 **Stock:** In stock **SKU:** EC-SEM02001S Japan's Hokuriku resistive humidity sensor production as a Temperature & Humidity sensor.Application Idea Test and testing equipment; Automatic control; Weather station; Humidity regulator; Features Measure the relative temperature and humidity sensor (humidity range 18% - 98% temperature ran... [View product](https://littlebirdelectronics.com.au/products/mth02-digital-temperature-humidity-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/mth02-digital-temperature-humidity-sensor.md) --- ### [BME680 Environmental Sensor Module](https://littlebirdelectronics.com.au/products/bme680-environmental-sensor-module.md) **Brand:** DFRobot **Price:** $31.25 **Stock:** In stock **SKU:** DF-SEN0375 BME680 is a 4-in-1 multi-functional MEMS environmental sensor which integrates VOC (Volatile Organic Compounds) sensor, temperature sensor, humidity sensor and barometer. It is designed for air quality monitor, and due to the MEMS technology, BME680 has a small size and low power consumption. It ... [View product](https://littlebirdelectronics.com.au/products/bme680-environmental-sensor-module) | [Markdown](https://littlebirdelectronics.com.au/products/bme680-environmental-sensor-module.md) --- ### [Octopus BME280 Pressure Sensor](https://littlebirdelectronics.com.au/products/octopus-bme280-pressure-sensor.md) **Brand:** ElecFreaks **Price:** $24.85 **Stock:** In stock **SKU:** EF-EF04087 Octopus BME280 Pressure Sensor is an electric brick, which has integrated temperature sensor, air pressure sensor and humidity sensor onboard. We can use it to measure humidity, temperature and air pressure, or even to calculate the altitude according to the measured air pressure. Features Low po... [View product](https://littlebirdelectronics.com.au/products/octopus-bme280-pressure-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/octopus-bme280-pressure-sensor.md) --- ### [SparkFun Humidity Sensor Breakout - SHTC3 (Qwiic)](https://littlebirdelectronics.com.au/products/sparkfun-humidity-sensor-breakout-shtc3-qwiic.md) **Brand:** SparkFun **Price:** $26.50 **Stock:** In stock **SKU:** SF-SEN-16467 Looking to keep a log of the climate in your greenhouse, create a humidor control system or want to track temperature and humidity data for a weather station project? The SparkFun SHTC3 Humidity Sensor may be the perfect option for you! The SHTC3 is a low cost, easy-to-use, highly accurate digita... [View product](https://littlebirdelectronics.com.au/products/sparkfun-humidity-sensor-breakout-shtc3-qwiic) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-humidity-sensor-breakout-shtc3-qwiic.md) --- ### [M5StickC Yun Hat(SH20,BMP280,SK6812)](https://littlebirdelectronics.com.au/products/m5stickc-yun-hat-sh20-bmp280-sk6812.md) **Brand:** Little Bird **Price:** $23.75 **Stock:** In stock **SKU:** M5-U070 The M5StickC Yun HAT is a cloud-shaped multi-sensor environmental monitoring accessory designed to mount on the M5StickC via the top socket. It integrates a temperature and humidity sensor (SHT20), barometric pressure sensor (BMP280), a photoresistor for ambient light detection, and 14 SK6812 RGB... [View product](https://littlebirdelectronics.com.au/products/m5stickc-yun-hat-sh20-bmp280-sk6812) | [Markdown](https://littlebirdelectronics.com.au/products/m5stickc-yun-hat-sh20-bmp280-sk6812.md) --- ### [Klimate Board for the BBC micro:bit](https://littlebirdelectronics.com.au/products/klimate-board-for-the-bbc-micro-bit.md) **Brand:** Kitronik **Price:** $36.20 **Stock:** In stock **SKU:** KI-5636 This RTC & Klimate board is a Real Time Clock (RTC) and environmental sensor (BME280) interface for the BBC microbit. The environmental sensor will give the ability to measure temperature, barometric pressure and humidity. The RTC will give the ability to read current time and date. The board... [View product](https://littlebirdelectronics.com.au/products/klimate-board-for-the-bbc-micro-bit) | [Markdown](https://littlebirdelectronics.com.au/products/klimate-board-for-the-bbc-micro-bit.md) --- ### [SparkFun gator:soil - micro:bit Accessory Board](https://littlebirdelectronics.com.au/products/sparkfun-gator-soil-micro-bit-accessory-board.md) **Brand:** SparkFun **Price:** $14.15 **Stock:** In stock **SKU:** SF-SEN-15272 If your plants could talk, would they call out "Water me, Seymour?" Unfortunately (or fortunately, perhaps) plants have yet to develop the ability to speak. But thanks to the SparkFun gator:soil micro:bit Accessory Board, you can now measure the moisture level in soil without any vocal clamoring ... [View product](https://littlebirdelectronics.com.au/products/sparkfun-gator-soil-micro-bit-accessory-board) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-gator-soil-micro-bit-accessory-board.md) --- ### [Adafruit HTU21D-F Temperature Humidity Sensor Breakout Board - Fully Assembled](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board-fully-assembled.md) **Brand:** Adafruit **Price:** $40.05 **Stock:** In stock **SKU:** AF-3515 The Adafruit HTU21D-F is an accurate I²C digital temperature and humidity sensor breakout board. With typical humidity accuracy of ±2% (optimised for 5–95% RH) and temperature accuracy of ±1°C across -30 to 90°C, it's a reliable and affordable choice for environmental monitoring projects. This br... [View product](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board-fully-assembled) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board-fully-assembled.md) --- ### [CO₂ Humidity and Temperature Sensor - SCD30](https://littlebirdelectronics.com.au/products/co-humidity-and-temperature-sensor-scd30-c26231f8-d6bf-4ba3-bc18-120658a6d59c.md) **Brand:** SparkFun **Price:** $183.40 **Stock:** In stock **SKU:** SF-SEN-15112 The SCD30 from Sensirion is a high quality Nondispersive Infrared (NDIR) based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature and humidity sensing built-in, as well as commands to set the current altitude. Fo... [View product](https://littlebirdelectronics.com.au/products/co-humidity-and-temperature-sensor-scd30-c26231f8-d6bf-4ba3-bc18-120658a6d59c) | [Markdown](https://littlebirdelectronics.com.au/products/co-humidity-and-temperature-sensor-scd30-c26231f8-d6bf-4ba3-bc18-120658a6d59c.md) --- ### [AM2320 Digital Temperature and Humidity Sensor](https://littlebirdelectronics.com.au/products/am2320-digital-temperature-and-humidity-sensor.md) **Brand:** Adafruit **Price:** $8.10 **Stock:** In stock **SKU:** AF-3721 The AM2320 is a low-cost digital temperature and humidity sensor with an I2C interface — a simpler alternative to the classic DHT11/DHT22 sensors that require timing-critical bit-bang protocols. With standard I2C communication, it's easy to integrate with any Arduino, Raspberry Pi, or CircuitPyth... [View product](https://littlebirdelectronics.com.au/products/am2320-digital-temperature-and-humidity-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/am2320-digital-temperature-and-humidity-sensor.md) --- ### [Air Quality Monitor (PM 2.5, Formaldehyde, Temperature Humidity Sensor)](https://littlebirdelectronics.com.au/products/air-quality-monitor-pm-2-5-formaldehyde-temperature-humidity-sensor.md) **Brand:** DFRobot **Price:** $180.85 **Stock:** In stock **SKU:** DF-SEN0233 A multifunction air quality monitor that measures particulate matter (PM2.5), formaldehyde concentration, temperature, and humidity. It uses laser scattering to detect suspended particles in the air, an electrochemical probe for formaldehyde detection, and an integrated sensor for temperature and... [View product](https://littlebirdelectronics.com.au/products/air-quality-monitor-pm-2-5-formaldehyde-temperature-humidity-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/air-quality-monitor-pm-2-5-formaldehyde-temperature-humidity-sensor.md) --- ### [MXChip Microsoft Azure IoT Developer Kit](https://littlebirdelectronics.com.au/products/mxchip-microsoft-azure-iot-developer-kit.md) **Brand:** DFRobot **Price:** $69.60 **Stock:** In stock **SKU:** DF-DFR0512 The MXChip Azure IoT Developer Kit is an Arduino-compatible development board designed for building cloud-connected IoT applications with Microsoft Azure. It features an STM32F412 ARM Cortex-M4F microcontroller, built-in Wi-Fi, and a rich set of on-board sensors — ready to connect to Azure IoT se... [View product](https://littlebirdelectronics.com.au/products/mxchip-microsoft-azure-iot-developer-kit) | [Markdown](https://littlebirdelectronics.com.au/products/mxchip-microsoft-azure-iot-developer-kit.md) --- ### [Digital Temperature humidity sensor (With Stainless Steel Probe)](https://littlebirdelectronics.com.au/products/digital-temperature-humidity-sensor-with-stainless-steel-probe.md) **Brand:** DFRobot **Price:** $54.10 **Stock:** In stock **SKU:** DF-SEN0148 This is an anti-rust, robust and precise SHT10 sensor, which can master enterprise-class and industrial-level applications. It can be applied in various fields: telepoint base stations, electronic control cabinet, production site, storehouse, machine rooms, greenhouses, animal farming, medicine s... [View product](https://littlebirdelectronics.com.au/products/digital-temperature-humidity-sensor-with-stainless-steel-probe) | [Markdown](https://littlebirdelectronics.com.au/products/digital-temperature-humidity-sensor-with-stainless-steel-probe.md) --- ### [Adafruit Si7021 Temperature Humidity Sensor Breakout Board](https://littlebirdelectronics.com.au/products/adafruit-si7021-temperature-humidity-sensor-breakout-board.md) **Brand:** Adafruit **Price:** $20.60 **Stock:** In stock **SKU:** AF-3251 The Adafruit Si7021 is a temperature and humidity sensor from Silicon Labs with a PTFE filter for protection against dust and contaminants. It provides ±3% relative humidity accuracy over 0–80% RH and ±0.4 °C temperature accuracy from −10 to +85 °C, all communicated over a simple I2C interface. T... [View product](https://littlebirdelectronics.com.au/products/adafruit-si7021-temperature-humidity-sensor-breakout-board) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-si7021-temperature-humidity-sensor-breakout-board.md) --- ### [Adafruit HTU21D-F Temperature Humidity Sensor Breakout Board](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board.md) **Brand:** Adafruit **Price:** $21.40 **Stock:** In stock **SKU:** AF-1899 The Adafruit HTU21D-F is an accurate I²C digital temperature and humidity sensor breakout board. With typical humidity accuracy of ±2% (optimised for 5–95% RH) and temperature accuracy of ±1°C across -30 to 90°C, it's a reliable and affordable choice for environmental monitoring projects. This br... [View product](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board.md) --- ### [STCC4 + SHT41 CO2, Temperature & Humidity Sensor](https://littlebirdelectronics.com.au/products/adafruit-stcc4-and-sht41-co2-temperature-humidity-sensor.md) **Brand:** Adafruit **Price:** $67.60 **Stock:** In stock **SKU:** AF-6478 This compact breakout combines the STCC4 CO2 sensor with a Sensirion SHT41 temperature and humidity sensor for convenient indoor air monitoring. The STCC4 measures true CO2 using a thermal conductivity method rather than estimating from VOCs, and the onboard SHT41 helps improve the CO2 measuremen... [View product](https://littlebirdelectronics.com.au/products/adafruit-stcc4-and-sht41-co2-temperature-humidity-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-stcc4-and-sht41-co2-temperature-humidity-sensor.md) --- ### [Indoor Air Quality Combo Sensor - SCD41/SEN55 (Qwiic)](https://littlebirdelectronics.com.au/products/sparkfun-indoor-air-quality-combo-sensor-scd41-sen55-qwiic.md) **Brand:** SparkFun **Price:** $435.60 **Stock:** In stock **SKU:** SF-SEN-25200 Build a detailed indoor air monitor with this Qwiic combo board, pairing Sensirion’s SCD41 CO2 sensor with the SEN55 environmental sensor node. Together they measure CO2, volatile organic compounds (VOCs), particulate matter across PM1.0, PM2.5, PM4 and PM10, temperature and relative humidity.The... [View product](https://littlebirdelectronics.com.au/products/sparkfun-indoor-air-quality-combo-sensor-scd41-sen55-qwiic) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-indoor-air-quality-combo-sensor-scd41-sen55-qwiic.md) --- ### [Gravity: STCC4 True Carbon Dioxide (CO2) Sensor (3-in-1 Air Quality Monitoring, 400 ~ 5000ppm)](https://littlebirdelectronics.com.au/products/gravity-stcc4-true-carbon-dioxide-co2-sensor-3-in-1-air-quality-monitoring-400-5000ppm.md) **Brand:** DFRobot **Price:** $36.65 **Stock:** In stock **SKU:** DF-SEN0678 This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitoring nodes where stable CO₂ readings are needed without complex hardware integrat... [View product](https://littlebirdelectronics.com.au/products/gravity-stcc4-true-carbon-dioxide-co2-sensor-3-in-1-air-quality-monitoring-400-5000ppm) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-stcc4-true-carbon-dioxide-co2-sensor-3-in-1-air-quality-monitoring-400-5000ppm.md) --- ### [AgXRP DIY Pump & Soil Moisture Sensor Expansion Pack - Beta](https://littlebirdelectronics.com.au/products/agxrp-pump-soil-moisture-sensor-expansion-pack-diy-beta.md) **Brand:** SparkFun **Price:** $53.35 **Stock:** In stock **SKU:** SF-KIT-30715 Add another controlled planting area to an existing AgXRP Starter Kit with this DIY expansion pack. It is designed to create a completely independent watering zone, so students can compare plant types, watering schedules and soil conditions side-by-side.The pack works with the XRP Controller in t... [View product](https://littlebirdelectronics.com.au/products/agxrp-pump-soil-moisture-sensor-expansion-pack-diy-beta) | [Markdown](https://littlebirdelectronics.com.au/products/agxrp-pump-soil-moisture-sensor-expansion-pack-diy-beta.md) --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** team@littlebirdelectronics.com.au - **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia - **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia - **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays) ### Payment Methods - **Credit Card:** Via website checkout - **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624 - **Purchase Orders:** Email to team@littlebirdelectronics.com.au (Net 30 for approved accounts) --- *Source: [Humidity Sensors](https://littlebirdelectronics.com.au/collections/humidity-sensors) ([Markdown](https://littlebirdelectronics.com.au/collections/humidity-sensors.md))*