Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Microcontroller	Nordic nRF52810
Wireless Protocol	Bluetooth 5.0 BLE
Temperature Sensor	Sensirion SHT40
Motion Sensor	3-Axis Low-Power Accelerometer
Power Source	CR2032 Coin Cell Battery
Operating Temperature	-40°C to +85°C
Humidity Accuracy	±1.8% RH
PCB Dimensions	25mm x 25mm
Programming Interface	SWD Header
Firmware Support	Customizable Open Source

5 reviews

Anonymous

Apr 15, 2026

Rating: 4/5

Good accuracy

Temp readings are spot on compared to my calibrated thermometer. Humidity seems slightly off but acceptable for DIY projects.

Anonymous

Mar 14, 2026

Rating: 5/5

Excellent DIY Module

Easy to flash custom firmware using the SWD header. The accelerometer data is useful for detecting movement events.

Anonymous

Mar 08, 2026

Rating: 5/5

Great for Home Assistant

Works perfectly with my ESP32 gateway. The temperature readings are consistent and the BLE signal is strong enough for my living room setup.

Anonymous

Feb 21, 2026

Rating: 5/5

Perfect for IoT

Compact and reliable. I bought five of these for monitoring different rooms. The SHT40 is a significant upgrade over cheaper sensors.

Anonymous

Feb 20, 2026

Rating: 3/5

Battery drains fast

Good sensor but battery life varies depending on advertising interval settings. Need to optimize code for long-term use.

5 FAQ

Q: What is the BLE range?

A: Typically up to 50 meters in open space, but walls and interference will reduce this range.

Q: Is it waterproof?

A: The module itself is not waterproof. You will need to enclose it in a case for outdoor or humid environments.

Q: Can I change the advertising interval?

A: Yes, since it is customizable, you can modify the firmware to adjust the BLE advertising interval to save power.

Q: What battery does it use?

A: It uses a standard CR2032 coin cell battery, which is easily replaceable.

Q: Does it work with iOS?

A: Yes, any BLE scanner app on iOS can detect the sensor, or you can write a custom app using CoreBluetooth.

Explore your interests

Beikecom ESP32-S3 Core Board (N8R2/N16R8) with Bluetooth/WiFi Module, 44-Pin Xiaozhi Robot

$29.20

Pulse Heart Rate Sensor Compatible Bio-Simulation Sensor Header Pins No Soldering Required

$6.35

[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars

$2.09

N52 Super Strong Square Magnet, Neodymium Iron Boron Bar Magnet, Powerful Magnetic Blocks

$10.50

Instax Shutter Timer Selfie Artifact Fujifilm instax SQ Series Non-Destructive Installation

$58.00

STM32 Beginner Kit Minimum System Board Electronic Breadboard Same as University Science Association Models

$56.60

lalaci Round N52 Strong Magnet High Performance Powerful Small Magnet Diameter 1/2/3/4/5/6/8 Manufacturer NdFeB

$3.25

Car Vibrator/Piezoelectric Vibration Sensor Motorcycle Anti-Theft Alarm Vibration Sensor Module Ceramic Plate

$13.00

N52 Strong Magnet Small Round Mini Powerful Tiny Magnet High-Performance Neodymium Iron Boron Super Strong Magnet Steel 2-8mm

$5.50

Natural Cinnabar Rose Beads, Purple Gold Sand 'Blooming Prosperity' DIY Bracelet and Ring Accessories, Buddhist Prayer Bead Charms

$1.30

Strong Magnet with Hole Square Magnet Block High-Performance Neodymium Iron Boron Countersunk Hole Magnet Steel Magnet Stone Patch

$0.50

New Stainless Steel Solder Wire Lighter Usable High Purity Tin Wire Universal Welding Tool Soldering Wire

$2.90

New Industrial Iron Picker Iron Sucker Magnetic Quick Magnetic Rod G Parts Manual Magnet Nail Sweeper Simple

$386.24

Waveshare MCP23017 I/O Expansion Module Compatible with Raspberry Pi/Micro:bit/STM32/Arduino

$34.00

Voice Playback Module MP3 Prompter Trigger Once Play Once Announcer Compatible with Arduino

$29.00

M03 M04 Water Level Detection Module Sensor, Green Non-Contact Liquid Level Touch Switch

$1.15

MQ-8 Hydrogen Gas Sensor Module

$7.73

MAX30100/MAX30102 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

$5.39

300 SMT Component Soldering Kit High-Intensity Practice Board PCB Skills Competition TJ-56-273

$42.40

Kunlun Coast Industrial Wide-Temperature Transmitter Split Type Temperature and Humidity Sensor JWSK-6

$100.00

Digital + Analog LM386 Sound Detection Sensor Voice Control Switch Audio Waveform Microphone Module

$20.00

NVIDIA JETSON NANO B01 Development Board 4GB Core ORIN Kit AI Artificial Intelligence ROS Motherboard

$899.00

Wildfire Shengteng Mini FPGA Development Board Xilinx Artix-7 XC7A35T/100T/200T A7 Board

$665.00

EchoEar MeowMate PCB Development Board Kit Components Espressif Xiaozhi AI Volcengine Open Source Replica

$0.50

Strong Magnetic Rod with Lifting Ring Industrial Magnetic Force 304 Stainless Steel Stable Mining Iron Removal Magnet

$202.00

Thickened Strong Magnetic Rubber Soft Magnetic Sheet A4 Advertising Magnetic Car Sticker, Flexible Magnet with Adhesive Backing, Magnetic Paper

$17.50

[Corrosion-Resistant] DFRobot Capacitive Soil Moisture Sensor Module Dry/Wet Detection

$35.00

(Loose Parts) Photo-Sensitive Light-Controlled Audio-Visual Alarm Kit with Buzzer and Double-Sided PCB Board for Teaching, Training, and Soldering Practice

$6.80

FarSight WS63 NearLink Development Board Hi3863 HarmonyOS OpenHarmony IoT WiFi Bluetooth BLE

$199.00

Raspberry Pi 4 Case Aluminum Alloy Heat Dissipation

$21.90

Anlixin Solder Paste Solder Cream SMT Patch Mobile Phone Repair Reballing LED Welding High Medium Low Temperature Lead-Free Solder Mud

$25.80

Strong Magnetic Suction Patches, Round Neodymium Magnets with Holes, High-Strength Fixed Suction Force

$2.55

Desktop Soldering Fixture for Mobile Phone Repair - Electronic Holding Stand with Soldering Iron Support and Auxiliary Tools

$11.64

GY-530 VL53L0X Laser Distance Sensor ToF Ranging Time-of-Flight Sensor Module

$12.31

SC7A20H 3-Axis Acceleration Tilt Angle Sensor Module, Inclination and Level Detection with Serial Output

$11.35

N52 Strong Magnet Iron Attractor Round Powerful Magnet Magnetic Stone Sheet Neodymium Iron Boron High-Strength Magnet Rare Earth Magnetic Steel Permanent Magnet

$7.07