Product Review: TM-190 Multi-Field EMF Meter

The Instrument Choice team of scientists regularly reviews new and popular products, so you can make more informed decisions when searching for the perfect scientific instrument for your application.

This edition reviews the TM-190 EMF Meter, a portable unit offering three measurements in a simple to operate, handheld meter.

An Introduction to EMF

Electromagnetic fields occur in nature and from human-made sources. Natural causes include electrical charges produced by thunderstorms and the Earth’s magnetic field. TV antennas, electrical wiring, and appliances are examples of everyday human-made sources.

Electric fields occur whenever a positive or negative electrical charge exerts forces on other charges within a field. The standard unit for measuring electric field strength is volt per metre (V/m).

Magnetic fields result from the motion of electric charges. The most common unit for measuring magnetic field strength is amperes per meter (A/m). In electromagnetic field research, it’s more common for scientists to specify a related quantity, for example, the flux density (microtesla, µT).

Introducing the Tenmars TM-190 Multi-Field EMF Meter

The Tenmars TM-190 Multi-Field EMF Meter offers three measurements in a straightforward, handheld meter that can help indicate the level of electromagnetic pollution generated by appliances, power lines and industrial machinery. The TM-190 measures the strength of low-frequency electromagnetic fields, electric field areas and radiofrequency (RF) field strength.

Tenmars TM-190 Multi-Field EMF Meter Features & Benefits

Figure 1 Rear of the devicing indicating the direction the
meter needs to be held in for specific measurements

• User-selectable units: Choose magnetic units between Gauss (mG) or Tesla (uT) and choose RF field strength units between uW/m²-m W/m², µW/cm², mVm/-V/m, mA/m and dBm.
• Performs low-frequency EMF readings: Through individual and aggregated XYZ axial readings.
• High-frequency EMF readings are easy to perform thanks to the directional indicators printed on the back of the device. (Figure 1)
• View RF historical records: Up to 20 groups on the on-screen histogram display.
• Data hold: The data hold function allows users to freeze the current measurements on the screen at any time for easy recording of results.
• Extra-large coloured display: An easy-to-read full-colour TFT display presents the information to the user, with all three readings shown simultaneously. Displayed information includes:
  1. Data hold indicator
  2. Auto power-off indicator
  3. Buzzer indicator
  4. Battery status indicator
  5. Tesla (uT) or Gauss (mG) display
  6. Electric Field (V/m) display
  7. RF strength history histogram display
  8. RF strength digital display (mV/m, W/m², µW, cm², dB)
  9. Menu navigation key
  10. Measurement hold button
  11. RF electronic field warning indicator
  12. Electric Field electronic field warning indicator
  13. Individual XYZ axial value of LF electromagnetic wave display; and
  14. Electromagnetic wave warning indicator.
• Brightness options: Adjustable screen brightness allows straightforward interpretation of results under any lighting conditions.

Tenmars TM-190 Multi-Field EMF Meter Key Specifications

Tenmars TM-190 Multi-Field EMF Meter Applications

• Locating RF “Hot Spots” in the home or workplace
• Mobile phone, base station, and antenna radiation monitoring
• Microwave oven leakage tests; and
• Wireless network (WiFi) RF detection. 

Conclusion

What do our scientists conclude about the Tenmars TM-190 Multi-Field strength meter?

“The Tenmars TM-190 Multi-Field strength meter is an easy-to-use handheld EMF meter that simultaneously displays a wealth of helpful information. We recommend this unit for conducting multi-field measurements around the home and office.”

Need more information on the Tenmars TM-190 Multi-Field strength meter?  Speak with an Instrument Choice Scientist: Call 1300 737 871 or email [email protected].