Parkside Electromagnetic Field Detector PEM A1

Have you ever wondered about how safe your place or position is regarding electromagnetic and magnetic fields? An EMF meter is a scientific instrument for measuring electromagnetic fields (abbreviated as EMF).EMF meters measure fluctuations in electromagnet fields. Measurements of the EMF are obtained using an E-field (electrical field) sensor or H-field sensor (magnetic field). I have earlier tested some EMF meters, and here some views on a new Parkside PEM A1 product sold by Lidl. This PEM A1 can measure EMF magnetic fields in milligauss.

Electromagnetic field detector PEM A1 features:
For measuring electromagnetic fields from devices such as televisions, computers, microwave ovens, refrigerators, vacuum cleaners
Easy assessment with a 4-step LED scale (low or high radiation)
Batteries included
Measurement levels: 1.5/2.5/10/20+ mG
LED display: 4 levels (green / yellow / orange / red)

The meter is simple to use. You turn it on by pressing the red button in front panel and keep it pressed down as long as you want the device to be powered. When the meter powers up, it first turns on all LEDs, and then goes to measurement mode (all LEDs except green power LED are off when you are away from EMF sources). It is pretty simple meter and gave quite similar readings as some other meters. It feels OK, but has somewhat cheap plastic feeling in it (the price on sale was very cheap few euros). The meter seems to be mainly designed to measure mains frequency magnetic fields, but seems to also react to higher frequencies also (toothbrush charger and QI charger for smart phone for example).

Review videos:

Parkside Electromagnetic Field Detector PEM A1 REVIEW

Another video on the same topic with some errors on the measured units – This device measures EMF in milligauss and not in milligrams like said in this video Parkside Electromagnetic Field Detector PEM A1 REVIEW

Let’s take a look at what is inside it:

There seems to be a circuit board coil for magnetic field pickup. The signal from the coil seems to be amplified with few transistors (or FETs) before it is fed to main IC that drives the LEDs.

The IC in the circuit bard had following markings in it:
324
ST MZA4125

Technical specifications page from manual: