> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Fermion:SHT40 Humidity & Temperature Sensor (Breakout)

**Type:** Product page · **SKU:** SEN0428 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/fermion-sht40-humidity-temperature-sensor-breakout.html ([markdown](https://core-electronics.com.au/fermion-sht40-humidity-temperature-sensor-breakout.html.md))

The SHT4X is the 4th generation digital temperature and humidity sensor from Sensirion. In line with Sensirion’s industry-proven humidity and temperature...

## Pricing

- **Price:** $14.30 (inc GST) — $13.00 AUD, exc GST
- **Quantity discounts:** 6+ $12.35 (exc GST) · 12+ $11.83 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 180 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0428:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0428:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The SHT4X is the 4th generation digital temperature and humidity sensor from Sensirion. In line with Sensirion’s industry-proven humidity and temperature sensors, the SHT40 offers consistent high accuracy within measuring range.

The SHT40 sensor covers a humidity measurement range of 0 to 100%RH and a temperature detection range of -40°C to 125°C with a typical accuracy of ±1.8%RH and ±0.2%. The internal variable power heater enables the device to work properly under extreme operating conditions like condensing environment.

The board supply voltage of 3.3V to 5V and an current consumption below 0.15mA in low power mode make the SHT40 perfectly suitable for mobile or wireless battery-driven applications. It is suitable for urban environment monitoring, intelligent buildings, industrial automation, smart home and other Internet of Things applications.

## Features

- High Accuracy
- Low Power Comsumption
- Small Size
- Fast Response
 
## Applications

- Intelligent Buidings and Furniture
- Weather Station
- Warehouses
- Animals and Plants Culture
- Animal Incubator
- Germinating Box for plant seed
 
## Specification

- Operating Voltage: 3.3V-5V
- Operating Current: 0.45mA
- Communication Interface: I2C
- Response Time: 8s (tau63%)
- Humidity Measurement Range: 0~100%RH
- Humidity Measurement Accuracy: ±1.8%
- Temperature Measurement Range: -40°C ~ +125°C (-40°F to +275°F)
- Temperature Measurement Accuracy: ±0.2°C
- Dimension: 14x17mm/0.55x0.67"
- Mounting Hole Size: M2 (2mm)
- Mounting Hole Pitch: 10mm
 
## Documents

- [Product wiki](https://wiki.dfrobot.com/SHT40_Humidity_and_Temperature_Sensor_SKU_SEN0428)
- [Schematics](https://core-electronics.com.au/attachments/localcontent/98f2c498d566ea02fed2d9801510c47f_450611bc2ab.PDF)
- [SHTC3 Datasheet](https://core-electronics.com.au/attachments/localcontent/66b61b400c70f1332ed2bed69538296b_124034dfcad.pdf)
 
## Parts List

- Fermion:SHT40 humidity & temperature sensor x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_4031.jpg)