Introduction
Sincerely thank you for purchasing this product. Please be sure to read all the contents of this manual carefully before using the instrument. The responsible person should make sure that all users read and follow this manual, otherwise it may lead to dangerous laser radiation injury and electric shock.
Safety Information
Caution
- Do not use the instrument with an unsteady footing.
- This instrument is to be kept out of the reach and use of children.
- Do not attempt to disassemble or modify this instrument. Failure to do so may result in an increase in laser emission power and unnecessary personal injury.
- Please keep this manual for reference during use.
Safety Regulations
Before using the instrument for the first time, please read the safety terms and operating instructions carefully. Failure to use the instrument in accordance with the guidelines in this manual may result in damage to the instrument, affecting the accuracy of the measurements, or personal injury to the user or a third party.
- The digital laser rangefinder is a laser product, please do not look directly at the laser and do not aim at others when using this instrument at any time.
- Do not use the instrument on an unsteady footing, use it within the specified range of application, and do not shine the laser on highly reflective surfaces or direct sunlight.
- Do not use this instrument in the vicinity of airplanes or medical equipment, or in environments where flammable or explosive liquids, gases or dusts are present.
- Electromagnetic radiation from the instrument may cause interference with other devices and equipment.
- Do not break any safety warning signs on the instrument!
Product Overview
The TENMARS TM-190 is a multi-field EMF meter designed to detect magnetic fields, electric fields, and RF strength. It features a clear digital display for easy reading of measurements.
Setup
Unboxing and Initial Inspection
Upon receiving your TM-190 EMF Meter, carefully open the packaging and inspect the contents. Ensure all items are present and undamaged.
Battery Installation
The TM-190 requires three (3) AAA batteries for operation. Batteries are not included with the device.
- Locate the battery compartment on the back of the device.
- Open the battery compartment cover.
- Insert three 1.5V AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Operating Instructions
Powering On/Off
Press the central power button to turn the device on or off.
Taking Measurements
The TM-190 measures Magnetic Field, Electric Field, and RF Strength simultaneously. Readings are displayed on the screen in real-time.
- Magnetic Field: Displays readings in mG (milligauss) and µT (microtesla).
- Electric Field: Displays readings in V/m (Volts per meter).
- RF Strength: Displays readings in mV/m (millivolts per meter).
Hold Function
The device features a 'Hold' function to freeze the current readings on the display. Refer to the on-screen prompts or the full user manual for specific button presses to activate/deactivate this feature.
Understanding Readings
The display includes indicators such as 'WARNING' for high magnetic fields and 'NORMAL' for electric fields, along with a bar graph for RF strength, indicating 'GOOD' levels.
Specifications
| Parameter | Details |
|---|---|
| Model | TM-190 |
| Magnetic Fields Measurement Range | 20/200/2000mG, 2/20/200µT |
| Magnetic Fields Frequency Response | 50Hz to 60Hz |
| Electric Fields Measurement Range | 50V/m to 2000V/m |
| Electric Fields Frequency Response | 50Hz to 60Hz |
| RF Strength Measurement Range | 36.1mV/m to 14.46V/m |
| RF Strength Frequency Response | 50MHz to 3.5GHz |
| Power | 4.5V (3 x 1.5V AAA batteries) |
| Certification | CE |
| Origin | Mainland China |
Maintenance
- Keep the device clean and free from dust and moisture. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Remove batteries if the device will not be used for an extended period to prevent leakage.
- Store the device in its protective pouch when not in use.
Troubleshooting
Device Not Powering On
- Check if the batteries are installed correctly with the right polarity.
- Ensure the batteries have sufficient charge. Replace with new AAA batteries if necessary.
Inaccurate Readings
- Ensure the device is used on a stable surface and not near strong electromagnetic interference sources.
- Avoid direct sunlight or highly reflective surfaces when measuring, especially for laser-related functions (if applicable).
- If readings seem consistently off, consider if the device requires recalibration (refer to the full manual or manufacturer support).
User Tips
- This meter is effective for detecting both high-frequency (HF) and low-frequency (LF) electrosmog.
- While it can detect some lower 5G cell signals, it may not pick up higher frequency 5G Wi-Fi signals.
- Some users have reported receiving a calibration document in English with their purchase, which can be useful for verifying accuracy.
Warranty and Support
For detailed warranty information and technical support, please refer to the official TENMARS website or contact your retailer. Keep your purchase receipt as proof of purchase.
For further assistance, you may also refer to the comprehensive user manual available as a PDF: View User Manual (PDF)