1. Introduction
The BOSEAN BH-W01 is a portable 3-in-1 Electromagnetic Field (EMF) meter designed for detecting Electric Field (EF), Magnetic Field (MF), and Radio Frequency (RF) radiation. This device features an integrated sensor for accurate signal capture and a 2.4-inch TFT color display for intuitive data visualization. It is suitable for use in various environments, including homes, offices, computer rooms, and communication base stations, to identify and manage radiation sources.
Figure 1: Front view of the BOSEAN BH-W01 Portable 3-in-1 EMF Meter, showing its display and control buttons.
2. Product Features
- 3-in-1 EMF Detection: Measures Electric Field (EF), Magnetic Field (MF), and Radio Frequency (RF) with high precision.
- Intuitive Display: Features a 2.4-inch TFT color screen for real-time, maximum, and average value display, along with dynamic line graphs for trend visualization.
- Multiple Alarm Modes: Supports audible, LED light, vibration, and on-screen alarms. Numeric values and curves change color when thresholds are exceeded.
- Wide Application: Suitable for measuring radiation levels from electronic devices like mobile phones, routers, microwaves, and identifying excessive radiation sources in various environments.
- Rechargeable Battery: Equipped with an 1800mAh Lithium-ion battery, rechargeable via Type-C port.
- Automatic Shutdown: Configurable auto-shutdown timer (e.g., 15 minutes) to conserve battery.
Figure 2: Illustration of the BOSEAN BH-W01's 3-in-1 measurement capabilities for Electric Field (EF), Magnetic Field (MF), and Radio Frequency (RF).
3. Setup and Charging
3.1 Initial Charging
Before first use, fully charge the device.
- Locate the Type-C charging port on the side or bottom of the device.
- Connect the provided Type-C USB cable to the device and the other end to a standard USB power adapter (not included) or a computer USB port.
- The charging indicator on the display will show the charging status. Allow the device to charge until the battery icon indicates a full charge.
Figure 3: The BOSEAN BH-W01 features a Type-C charging port and an 1800mAh rechargeable battery.
3.2 Powering On/Off
- To power on, press and hold the Hold/Power button until the display illuminates.
- To power off, press and hold the Hold/Power button until the display turns off.
4. Operation
4.1 Understanding the Display
The 2.4-inch TFT color display provides comprehensive information about the measured fields. Refer to the diagram below for an explanation of each indicator and function.
Figure 4: Detailed diagram of the BOSEAN BH-W01 display interface and button functions.
| No. | Function | No. | Function |
|---|---|---|---|
| 1 | Sound Alarm Icon (Mute icon appears if alarm is off) | 9 | Real-Time Magnetic Field (MF) Measurement |
| 2 | Alarm Light Icon | 10 | Real-Time Radio Frequency (RF) Measurement |
| 3 | Vibration Alarm Icon | 11 | Alarm Status Indicators: Low, Medium, High |
| 4 | Auto Shutdown Timer Icon | 12 | Graph Display Icon |
| 5 | Hold (Data Hold) | 13 | Real-Time Measurement Value |
| 6 | Battery Level | 14 | Average Measurement Value |
| 7 | Charging Indicator | 15 | Maximum Measurement Value |
| 8 | Real-Time Electric Field (EF) Measurement | 16 | Real-Time Curve Chart |
4.2 Measurement Modes
The device automatically measures EF, MF, and RF simultaneously.
- Electric Field (EF): Measures in V/m (Volts per meter). Range: 1 ~ 1999 V/m.
- Magnetic Field (MF): Measures in mG (milligauss) or µT (microtesla). Range: 0.1 ~ 1999.9 mG / 0.01 ~ 99.99 µT.
- Radio Frequency (RF): Measures in mW/m² (milliwatts per square meter). Range: 0.1 ~ 999.9 mW/m².
Figure 5: Common sources of Electric Field (EF), Magnetic Field (MF), and Radio Frequency (RF) radiation.
4.3 Button Functions
- Unit Button: Press to cycle through measurement units for Magnetic Field (mG/µT) or to adjust other unit-related settings if available.
- Hold/Power Button:
- Short press: Activates/deactivates Data Hold function, freezing the current readings on the display.
- Long press: Powers the device on or off.
- Mode Button: Press to cycle through display modes (e.g., real-time values, graph display) or to adjust alarm settings.
4.4 Interpreting Readings and Alarms
The device displays real-time, average, and maximum values. The color of the numeric values and curves will change to indicate different radiation levels (e.g., green for low, yellow for medium, red for high).
- Alarm Thresholds: The device has pre-set thresholds for low, medium, and high radiation levels. When a measured value exceeds a threshold, the corresponding alarm (audible, LED, vibration, screen color change) will activate.
- Overload Alarm: If the electromagnetic radiation exceeds the measurable range, an overload alarm will be triggered.
- Battery Alert: The device continuously monitors battery status and provides alerts for low power.
Figure 6: The BOSEAN BH-W01 offers four distinct alarm methods: sound, light, vibration, and display changes.
4.5 Real-Time Curve Chart
The device can display a real-time curve chart (Figure 4, item 16) to visualize the dynamic changes in magnetic field strength over time. This feature helps in observing trends and identifying intermittent radiation sources.
Figure 7: The real-time curve chart provides a visual representation of magnetic field changes over time.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. If storing for an extended period, charge the device to approximately 50% and recharge every few months.
- Avoid Impact: Protect the device from drops and strong impacts, which can damage internal components.
6. Troubleshooting
- Device does not power on:
- Ensure the battery is charged. Connect the device to a power source using the Type-C cable.
- Press and hold the Power button for several seconds.
- Inaccurate readings:
- Ensure the device is held steadily during measurement. Rapid movements can affect accuracy.
- Keep the device away from strong magnetic fields or other electronic devices that might interfere with readings, unless those are the intended measurement targets.
- The device's calibration is based on manual operation; hold it by hand for best results.
- Alarms not working:
- Check the alarm settings using the Mode button to ensure they are enabled.
- Verify that the measured values exceed the set thresholds.
- Display is blank or frozen:
- Try restarting the device by holding the Power button.
- If the issue persists, contact customer support.
7. Specifications
| Parameter | Value |
|---|---|
| Model Number | BH-W01 |
| Brand | BOSEAN (Manufacturer) / GLXY (Sub-brand/Distributor) |
| Dimensions (L x W x H) | 6.5 x 2.7 x 12.7 cm |
| Weight | 240 grams |
| Electric Field (EF) Range | 1 V/m to 1999 V/m |
| Magnetic Field (MF) Range | 0.1 mG to 1999.9 mG (0.01 µT to 99.99 µT) |
| Radio Frequency (RF) Range | 0.1 mW/m² to 999.9 mW/m² |
| Display | 2.4-inch TFT Color Screen |
| Power Source | 1 Lithium-ion Battery (included) |
| Battery Capacity | 1800mAh |
| Charging Port | Type-C USB |
| Auto Shutdown | Configurable (e.g., 15 minutes) |
8. Safety Information
- Do not attempt to open or modify the device. This may void the warranty and pose safety risks.
- Keep the device away from water and other liquids.
- Avoid exposing the device to extreme temperatures or high humidity.
- Dispose of the battery and device according to local regulations. Do not dispose of in household waste.
- This device is for informational measurement purposes only and should not be used as a substitute for professional safety assessments or medical advice.
9. Warranty and Support
Specific warranty details are typically provided with the product packaging or by the retailer at the time of purchase. For technical support, warranty claims, or further assistance, please refer to the contact information provided by your seller or the manufacturer, BOSEAN.
Manufacturer: BOSEAN
Model: BH-W01