Introduction
This manual provides essential instructions for the safe and efficient use of your Hama 00186357 Electronic Environment Thermometer. Please read these instructions carefully before first use and keep them for future reference. This device is designed for indoor temperature measurement and features an LCD display and an alarm function.
Safety Information
Observe the following safety instructions to prevent injury or damage to the device:
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping the device or subjecting it to strong impacts, as this may cause it to reset or malfunction.
- Keep batteries out of reach of children. Swallowing batteries can be fatal.
- Replace batteries correctly, observing polarity (+/-). Incorrect insertion can cause damage.
- Do not disassemble the device. Repairs should only be performed by qualified personnel.
For detailed safety information, please refer to the official Safety Information document: Safety Information (PDF).
Package Contents
Please check that all items are included in the package:
- 1x Hama 00186357 Electronic Environment Thermometer
- 2x LR1130 Button Cell Batteries (pre-installed or included separately)
- 1x Instruction Manual (this document)
Setup
Battery Installation
The Hama 00186357 thermometer operates on two LR1130 button cell batteries. These are typically included with your purchase.
- Locate the battery compartment on the back of the device.
- Carefully open the battery compartment cover. You may need a small screwdriver or coin to gently pry it open.
- Insert the two LR1130 button cell batteries, ensuring the correct polarity (+ and - symbols) matches the markings inside the compartment.
- Close the battery compartment cover securely.

Image: Rear view of the Hama 00186357 thermometer, highlighting the battery compartment for installation.
Initial Power On
Once batteries are installed, the device should automatically power on and display the current time and temperature. If the display remains blank, check battery installation or replace with new batteries.
Operating Instructions
Reading the Display
The LCD screen displays the current indoor temperature, time, and day of the week. The temperature is typically shown in Celsius. The device has a digital display for clear readability.

Image: Front view of the Hama 00186357 thermometer, displaying temperature, time, and day on its LCD screen.
Setting Time and Alarm
The thermometer includes an alarm function. Specific button functions may vary slightly, but generally follow these steps:
- Mode Button: Press the 'MODE' button (if present) to cycle through display modes: Time, Alarm, Date.
- Set Time: When in Time mode, press and hold the 'SET' or 'ADJ' button until the time digits begin to flash. Use the 'UP' or 'DOWN' buttons to adjust hours and minutes. Press 'SET' again to confirm each setting.
- Set Alarm: Switch to Alarm mode using the 'MODE' button. Press and hold 'SET' or 'ADJ' to set the alarm time. Use 'UP' or 'DOWN' to adjust.
- Activate Alarm: Look for an alarm icon or a dedicated 'ALARM ON/OFF' button to activate or deactivate the alarm.
Maintenance
Battery Replacement
When the display becomes dim or the device stops functioning, it is time to replace the batteries. Follow the battery installation steps outlined in the 'Setup' section. Always use two new LR1130 button cell batteries.
Cleaning
To clean the device, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water. This product is made of plastic and should be handled with care.
Troubleshooting
- Display is blank or dim:
Check if batteries are correctly installed. Replace with new LR1130 batteries. - Incorrect temperature reading:
Ensure the device is placed in a stable environment, away from direct heat sources, air conditioning vents, or direct sunlight, which can affect readings. Allow up to 4 minutes for the device to stabilize and provide an accurate reading. - Device resets unexpectedly:
The device may be sensitive to strong impacts or drops. If it resets, re-enter time and alarm settings as needed. Ensure the device is placed on a stable surface. - Alarm not sounding:
Verify that the alarm function is activated and the alarm time is correctly set.
Specifications
| Brand | Hama |
| Model Name | 00186357 |
| Special Feature | LCD Screen, Alarm Clock |
| Color | Silver |
| Included Components | 2 LR1130 button cell batteries |
| External Material | Plastic |
| Display Type | Digital |
| Power Source | Battery Powered |
| Operating Temperature (Upper) | 100 Degrees Celsius (Device tolerance, not measurement range) |
| Response Time | 4 Minutes |
| Indoor/Outdoor Use | Indoor |
| Item Length | 2.8 Centimeters |
| Item Weight | 72 Grams |
| Certifications | CE |
Warranty and Support
Hama products are manufactured with high-quality materials and undergo strict quality control. In the unlikely event of a defect, please contact your retailer or the Hama customer service department for assistance.
For warranty claims, please retain your proof of purchase. Specific warranty terms and conditions may vary by region. For further support or inquiries, please visit the official Hama website or contact their customer service directly.





