1. Product Overview
The Inkbird Mini Digital Thermometer and Hygrometer is a compact, smart sensor designed to accurately measure and monitor temperature and humidity in various environments. Featuring Bluetooth connectivity, it allows users to check real-time data and historical records via a smartphone application.

Image: Front view of the Inkbird Mini Digital Thermometer and Hygrometer, displaying temperature and humidity readings.
Key Features:
- Compact Design: Small size for easy placement and portability.
- Bluetooth Connectivity: Connects to your smartphone for remote monitoring up to 98ft/30m.
- Accurate Readings: Provides precise temperature (±0.50℉ / ±0.3℃) and humidity (±3%RH) measurements.
- Data Storage & Export: Stores historical data on your phone and allows export as a CSV file for analysis.
- Versatile Applications: Suitable for humidors, guitar cases, incubators, terrariums, and other environments requiring precise climate control.

Image: Visual representation of the Inkbird Smart Sensor's key features, including temperature, humidity, Bluetooth, ℃/℉ selection, APP monitor, Max/Min value, data storage, and accurate readings.
2. What's in the Box
Upon opening the package, ensure all the following components are present:
- Inkbird Thermometer and Hygrometer (1 unit)
- CR2032 Battery (pre-installed or included separately)
- User Manual (this document)
- Magic Tapes (2 pieces, for mounting)

Image: The Inkbird thermometer/hygrometer, its retail box, and two adhesive magic tapes, illustrating the package contents.
3. Device Components
Familiarize yourself with the different parts of your Inkbird Smart Sensor:

Image: A detailed diagram of the Inkbird Smart Sensor, labeling its components: 1. Sensor, 2. Current Temperature, 3. Battery Life, 4. Bluetooth Icon, 5. ℃/℉ / Bluetooth Button, 6. Current Humidity, 7. Min/Max Temp Button, 8. Space for magic tapes.
- Sensor: Integrated sensor for temperature and humidity detection.
- Current Temperature Display: Shows the real-time temperature reading.
- Battery Life Indicator: Displays the remaining battery power.
- Bluetooth Icon: Indicates Bluetooth connection status.
- ℃/℉ / Bluetooth Button: Press to switch between Celsius and Fahrenheit. Long press to activate/deactivate Bluetooth.
- Current Humidity Display: Shows the real-time humidity reading.
- Min/Max Temp Button: Press to view minimum and maximum recorded temperature and humidity values.
- Space for Magic Tapes: Designated areas on the back for attaching the included adhesive tapes for mounting.
4. Setup Guide
Follow these steps to set up your Inkbird Smart Sensor and connect it to your smartphone:
4.1. Download the App
Search for "Engbird" in the App Store (iOS) or Google Play Store (Android) to download the official application. Alternatively, you can scan the QR codes provided in the app download image below.

Image: Instructions for downloading the Engbird app, showing QR codes for both Android and iOS platforms.
4.2. Initial Connection
- Ensure Bluetooth is enabled on your smartphone.
- Open the Engbird application.
- Make sure the Bluetooth function on the Inkbird device is active. If not, long-press the ℃/℉ / Bluetooth Button on the device to turn it on.
- Place the device close to your phone.
- In the app, click "Add Sensor" or the "+" icon to search for and add the device.
- Once detected, select your device and choose a usage scenario (e.g., Indoor, Outdoor, Humidor) to complete the connection.

Image: Screenshot showing the Engbird app prompting the user to ensure Bluetooth is on.

Image: Screenshot of the Engbird app interface, showing the "Add Sensor" button to initiate device pairing.

Image: Screenshot of the Engbird app showing various usage scenarios (Indoor, Outdoor, Child, Car, Drug, Clothes, Wine, Pet, Fruit, Other) to select after adding a sensor.
5. Operating Instructions
5.1. On-Device Operation
- Temperature Unit Switch: Briefly press the ℃/℉ / Bluetooth Button to toggle between Celsius (℃) and Fahrenheit (℉).
- View Min/Max Readings: Press the MIN/MAX button to cycle through the minimum and maximum temperature and humidity values recorded since the last reset or power cycle.
5.2. App Operation (Engbird)
The Engbird app provides comprehensive monitoring and control features:

Image: Screenshot of the main interface of the Engbird app, showing current temperature, humidity, battery life, and options for app settings, usage scenario, sensor settings, and historical data graph.
- Real-time Monitoring: View current temperature and humidity readings directly on the app's home screen.
- Historical Data: Access graphs and detailed records of temperature and humidity over time (Day, Week, Month, Year).

Image: Screenshot of the Engbird app displaying historical temperature and humidity data in graph format, showing average, maximum, and minimum values over time.
- Data Export: Export historical data as a CSV file for further analysis. Navigate to the "Data export" section within the app settings.

Image: Screenshot of the Engbird app's data export screen, allowing users to select a date range and export data as a CSV file.
- Alert Settings: Set custom temperature and humidity ranges. The app can notify you if readings fall outside your specified limits.

Image: Screenshot illustrating how to set alarm temperatures and check historical data diagrams within the Engbird app.
6. Maintenance
6.1. Cleaning
To maintain accuracy and device longevity, wipe the unit clean with a dry or slightly damp cloth. Do not use abrasive cleaners or immerse the device in water.
6.2. Battery Replacement
The device uses a CR2032 coin cell battery. When the battery indicator on the display or app shows low power, replace the battery:
- Locate the battery compartment on the back of the device.
- Use a small tool or coin to gently open the battery cover.
- Remove the old CR2032 battery.
- Insert a new CR2032 battery with the positive (+) side facing up.
- Securely close the battery cover.

Image: Close-up view demonstrating the easy battery installation process for the Inkbird sensor, showing the CR2032 battery being inserted into the compartment.
7. Troubleshooting
If you encounter issues with your Inkbird Smart Sensor, refer to the following common troubleshooting steps:
- Device Not Connecting to App:
- Ensure Bluetooth is enabled on both your phone and the Inkbird device.
- Make sure the device is within the 98ft/30m Bluetooth range.
- Restart the Engbird app and try reconnecting.
- Check the device's battery level; replace if low.
- Try restarting your phone.
- Inaccurate Readings:
- Ensure the sensor is not exposed to direct sunlight, strong drafts, or extreme temperature fluctuations.
- Verify the sensor is clean and free from dust or debris.
- Allow the device to stabilize for at least 30 minutes after placement in a new environment.
- Display Not Working:
- Check and replace the battery.
- Ensure the battery is inserted correctly with the correct polarity.
8. Specifications
| Specification | Value |
|---|---|
| Product Dimensions | 1.1 x 1.1 x 2.36 inches (2.8 x 2.8 x 6 cm) |
| Weight | 5.29 ounces (150 grams) |
| Model Number | ITH-12S (ed8c6472-6a30-4005-bfa4-ea8f173c7c65) |
| Batteries | 1 x CR2032 (included) |
| Temperature Measuring Range | 32℉-140℉ (0℃-60℃) |
| Temperature Accuracy | ±0.50℉ (±0.3℃) |
| Humidity Measuring Range | 0%RH-99%RH |
| Humidity Accuracy | ±3%RH |
| Connectivity Technology | Bluetooth |
| Display Type | Digital |
| Outer Material | Plastic |
| Manufacturer | Inkbird |
9. Warranty and Support
Inkbird products are designed for reliability and performance. For specific warranty details, including coverage period and terms, please refer to the warranty card included with your product or visit the official Inkbird website.
If you require technical assistance, have questions about product operation, or need to report a defect, please contact Inkbird Customer Support:
- Manufacturer: Inkbird
- Website: www.inkbird.com (Please check the official website for the most current contact information and support resources.)