1. Introduction
The Doli Yearning Baby Bath Thermometer is designed to provide accurate and rapid temperature readings for your baby's bath water and room environment. Its seal-shaped design makes it a safe and engaging bath toy while ensuring optimal safety through precise temperature monitoring. This device is made from BPA-free materials and features a clear LCD display for easy readability.

Image: The Doli Yearning Seal Shape Baby Bath Thermometer, showing its white, seal-like form with a digital display on its back.

Image: A happy baby splashing in a bathtub with the Doli Yearning thermometer floating nearby, illustrating its use during bath time.
2. Safety Information
Your baby's safety is paramount. This thermometer is constructed from BPA-free materials, ensuring it is safe for contact with your child. Always ensure the battery compartment is securely closed to maintain its waterproof integrity. The device provides visual cues for temperature safety:
- Blue Indicator: Water temperature is too cool.
- No Flashing Indicator: Water temperature is just right.
- Red Indicator: Water temperature is too hot.
Always double-check the temperature with your hand before placing your baby in the water, even if the thermometer indicates a safe temperature.

Image: A diagram illustrating the thermometer's display for different water temperatures: 'Too Cool' with a blue dot, 'Just Right' with no dot, and 'Too Hot' with a red dot and 'HOT' warning.
3. Package Contents
Upon opening the package, please verify that all components are present:
- Doli Yearning Baby Bath Thermometer (Seal Shape)
- User Manual (this document)
- 2 x LR44 Button Batteries (pre-installed or included separately)
4. Setup
Before first use, or when replacing batteries, follow these steps:
- Locate the battery cover on the underside of the thermometer.
- Using a small screwdriver, unscrew the battery cover.
- If present, remove the insulation piece located between the batteries. This piece prevents battery drain during storage.
- Ensure the 2 LR44 button batteries are correctly inserted with the positive (+) side facing up.
- Securely replace the battery cover and tighten the screw to ensure the device remains waterproof.

Image: An illustration of the thermometer's underside, highlighting the battery compartment, the screw for battery replacement, the On/Set button, and the +/- button, along with instructions to remove the insulation piece.

Image: A close-up view of the thermometer's battery compartment, showing the circular cover and the screw that secures it.
5. Operating Instructions
5.1 Measuring Water Temperature
Place the thermometer directly into the bath water. The large LCD display will show the water temperature within approximately 1 second. The thermometer will float, allowing for continuous monitoring during bath time.

Image: A close-up of the seal-shaped thermometer floating in water, with its digital display showing a temperature reading.
5.2 Measuring Room Temperature
The thermometer can also be used to measure ambient room temperature. Simply place it in the desired room, and the display will show the current air temperature.
5.3 Switching Between Celsius (℃) and Fahrenheit (℉)
To change the temperature unit, locate the "℃/℉" button on the bottom of the thermometer. Press this button to toggle between Celsius and Fahrenheit readings.
5.4 Automatic Shut-off
The thermometer is designed to automatically turn off after a period of inactivity to conserve battery life.
6. Maintenance and Care
6.1 Cleaning
To clean the thermometer, hand wash it with mild soap and water. Do not use abrasive cleaners or immerse the device in harsh chemicals.
6.2 Battery Replacement
When the display becomes dim or unresponsive, it is time to replace the batteries. Follow the steps outlined in the "Setup" section (Section 4). It is crucial to ensure the battery cover is securely fastened after replacement to maintain the device's waterproof rating.

Image: A visual guide showing the battery compartment opened with two LR44 button batteries removed, illustrating the battery replacement process.
6.3 Storage
Store the thermometer in a cool, dry place when not in use. Avoid prolonged exposure to direct sunlight or extreme temperatures.
7. Troubleshooting
If you encounter issues with your Doli Yearning Baby Bath Thermometer, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is dim or blank. | Low battery or insulation piece still present. | Replace batteries (refer to Section 4 & 6.2). Ensure the insulation piece is removed. |
| Inaccurate temperature readings. | Sensor obstruction or device malfunction. | Ensure the sensor area is clean. If the problem persists, contact customer support. |
| Device does not turn on. | Batteries incorrectly installed or dead. | Check battery orientation and replace if necessary. Ensure the insulation piece is removed. |
| Water leakage into battery compartment. | Battery cover not securely closed. | Ensure the battery cover is tightly screwed on. If water has entered, dry thoroughly and replace batteries. If leakage continues, discontinue use. |
8. Specifications
- Model Number: DYWDJ005
- Power Source: 2 x LR44 Button Batteries (included)
- Dimensions: 9.53 x 8 x 4.8 cm (3.75 x 3.15 x 1.89 inches)
- Weight: 66.7 g (2.35 ounces)
- Material: BPA-free Plastic
- Display Type: LCD
- Special Feature: High Accuracy, Waterproof
- Care Instructions: Hand wash

Image: A visual comparison of the thermometer's dimensions (5.12 inches length, 2.17 inches height, 3.54 inches width) next to an iPhone 12, illustrating its compact size.
9. Warranty and Support
For any questions, concerns, or support needs regarding your Doli Yearning Baby Bath Thermometer, please contact our customer service. Refer to the product packaging or the retailer's website for specific contact information.
