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Tenmars TM-191 EMF Meter


This meter is applied to measuring electromagnetic fields of extremely low frequencies (ELF) of 30Hz to 300Hz. It is capable of measuring the electromagnetic field radiation intensity that is produced fro electric transmission equipment, and power lines.


  • Switch between the display of Micro-Tesla and Mini-Gauss is available.
  • Data Hold (HOLD), Bmaximum (MAX) HOLD function.
  • Range display (20, 200, 2000).
  • Low battery and Overload indication.


  • Instrument is capable of measuring the electromagnetic field radiation intensity that is produced from electric transmission power line equipment.
  • Useful in servicing microwave ovens, air conditioners, refrigeration equipment, computer monitors, and video/audio devices.

Magnetic Field Units

  • Tesla (T), Gauss (G), mini-Gauss (mG), or micro-Tesla (µT)
  • 1T = 10000G, 1µT = 10mG, 1G = 1000mG

Authorised Australian distributor


If you would like more information regarding this product, simply email us here.
  • This field is for validation purposes and should be left unchanged.
SKU: TENMARS TM-191 Categories: , Tags: ,

Tenmars TM-191 Specification

Display 3-1/2 digit LCD, maximum reading 1999
Measuring Range 200mG, 2000mG, 20µT, 200µT
Resolution 0.1mG, 1mG, 0.01µT, 0.1µT
Frequency Response 30Hz to 300Hz
Sensor Single Axis
Accuracy ±(2.5% + 6dgt) at 50/60Hz
Sample Rate 2.5 times/second
Power Supply Battery 9 volt, NEDA 1604, IEC 6F22, or JIS 006P
Battery Life 200 hours Approx.
Operating Temperature/Humidity 5°C to 40°C, Humidity below 80% R.H.
Dimensions 130mm (L) x 56mm (W) x 38mm (D)
Weight 180g Approx.
Ordering Information
Model Name Description
Tenmars TM-191 EMF Meter
Included accessories: User’s manual, 9 volt battery and carrying case



Safety precautions should be taken against electric appliances in places including medical institutions, schools and residential districts, where people usually stay for a long time, to prevent patients, babies and senior citizens from exposure to high electromagnetic waves. An electromagnetic wave simply means the wave motion of the electromagnetic field (EMF). The change in electric fields produces magnetic fields, and the change in magnetic fields can also generate electric fields. The fluctuation of correlation between each other is known as “electromagnetic waves”, which is a form of energy similar to light and heat that can be transmitted either by radiation in the air or by an electric conductor. It is suggested that rearrangements should be made in families and work locations where electromagnetic fields are detected the strongest in order to avoid prolonged exposure to excessive electromagnetic fields.

Weight .5 kg


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