Introduction
This user manual provides essential information for the safe and effective operation of your Berrcom JXB-178 Infrared Forehead Thermometer. Please read this manual thoroughly before use and retain it for future reference.

The Berrcom JXB-178 Infrared Forehead Thermometer, shown alongside its retail packaging, highlights its non-contact design and digital display.
Product Features
- Non-contact Design: Special designed to take human body temperature with a 3cm-5cm (1.2in-2in) distance from the forehead.
- Accurate and Reliable Measurement: Utilizes advanced infrared technology to scan and measure temporal artery temperature on the forehead, providing quick, accurate, and reliable readings.
- Complete Features: Practical and easy to use. Simply aim at the body's forehead and press the scan button. Temperature units can be displayed in either Celsius (℃) or Fahrenheit (℉).
- Memory Recall and Fever Alarm: Stores the last 32 temperature measurements. The backlit display turns RED and an audible alarm sounds if body temperature exceeds 38℃ (100.4℉).
- 100% Safe and Hygienic: Safe for all ages and groups, ensuring complete hygiene as it does not require physical contact. It can measure body, surface, and room temperature. Equipped with automatic power-off (30 seconds) to conserve energy.
Setup
Battery Installation
The Berrcom JXB-178 thermometer requires 2 AA batteries for operation.
- Locate the battery compartment cover on the handle of the thermometer.
- Gently slide or open the cover.
- Insert 2 AA batteries, ensuring correct polarity (+ and -) as indicated inside the compartment.
- Close the battery compartment cover securely.
Note: Batteries are typically included with the product. Ensure they are inserted correctly to avoid malfunction.

Side view of the Berrcom JXB-178 thermometer, illustrating its compact size (6 inches long, 3.25 inches wide) and the location of the battery compartment on the handle.
Operating Instructions
Taking a Body Temperature Reading
- Ensure the thermometer is in "Body" mode. Press the "MODE" button to cycle through modes (Body, Surface Temp, Room) until "Body" is displayed.
- Hold the thermometer 3cm-5cm (1.2in-2in) away from the center of the forehead.
- Press the measurement trigger (scan button) located on the handle.
- The temperature reading will appear on the digital display within 1 second.
- If the temperature exceeds 38℃ (100.4℉), the display backlight will turn RED, and an audible alarm will sound.
Switching Temperature Units (℃/℉)
To switch between Celsius (℃) and Fahrenheit (℉):
- With the thermometer powered on, press and hold the "MODE" button for a few seconds until the unit changes.
- Release the button when your desired unit is displayed.
Memory Recall
The thermometer can store up to 32 previous temperature measurements.
- Press the "MEM" button to view the stored readings.
- Each press will cycle through the stored measurements.
Volume Control
To adjust the volume of the audible alerts:
- Press the speaker icon button (between MODE and MEM) to toggle the sound on or off.
Maintenance
Cleaning the Thermometer
To ensure accurate readings and hygiene, clean the thermometer regularly.
- Use a soft cloth slightly dampened with alcohol (70% isopropyl) to wipe the surface of the thermometer.
- Pay special attention to the probe tip (infrared sensor).
- Do not immerse the thermometer in water or any other liquid.
- Allow the thermometer to air dry completely before storage or next use.
Storage
Store the thermometer in a cool, dry place, away from direct sunlight, extreme temperatures, and humidity.
Keep out of reach of children.
Battery Replacement
Replace batteries when the low battery indicator appears on the display. Follow the battery installation steps.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| "Lo" or "Hi" displayed | Temperature is outside the measurable range (e.g., too low or too high for body temperature). | Ensure the thermometer is held at the correct distance (3-5cm) from the forehead. Check ambient room temperature. If measuring body temperature, ensure the subject is not in an extremely cold or hot environment. |
| Inaccurate readings | Dirty sensor, incorrect measurement distance, or environmental factors. | Clean the infrared sensor carefully. Ensure the thermometer is held at the specified distance. Avoid taking measurements immediately after strenuous activity or in drafts. Allow the thermometer to acclimate to room temperature for 15-20 minutes if moved from a different environment. |
| No display/Does not turn on | Dead or incorrectly installed batteries. | Check battery polarity. Replace with new AA batteries. |
| Audible alarm sounds frequently | Consistent high temperature readings. | This indicates a fever. Consult a medical professional if concerned. |

The back of the Berrcom JXB-178 thermometer, showing regulatory markings, model number JXB-178, battery requirements (DC 3V), and measuring distance (3cm-5cm).
Specifications
| Feature | Detail |
|---|---|
| Brand | Berrcom |
| Model Name | JXB-178 |
| Special Feature | Non-Contact |
| Color | Red |
| Age Range (Description) | Adult |
| Included Components | Infrared Forehead Thermometer |
| Outer Material | Plastic |
| Display Type | Digital |
| Connectivity Technology | Infrared |
| Product Care Instructions | Wipe Clean |
| Unit Count | 1.0 Count |
| Power Source | Battery Powered |
| Number of Batteries | 2 AA batteries required. (included) |
| Item Length | 6 Inches |
| Upper Temperature Rating | 100.4 Degrees Fahrenheit |
| Response Time | 1 seconds |
| Reusability | Reusable |
| Indoor/Outdoor Usage | Indoor |
| UPC | 609147524075 |
| Manufacturer | Berrcom. |
| Item Weight | 5.9 ounces |
| ASIN | B08KGYJJGL |
| Date First Available | September 30, 2020 |
| Item Package Dimensions L x W x H | 7.24 x 4.76 x 2.24 inches |
| Size | 1 Count (Pack of 1) |
| Number of Items | 1 |

A close-up view of the infrared sensor located at the front of the Berrcom JXB-178 thermometer, which is crucial for non-contact temperature measurement.
Warranty and Support
For warranty information and customer support, please refer to the official Berrcom website or contact their customer service directly.
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