What is Reddit's opinion of Ultimate EMF Detector Free?

From 3.5 billion Reddit comments

An android app called Ultimate EMF Detector.

Ultimate EMF Detector

I tried another app and got similar results called EMF Meter.

EMF Meter

Confirmed /u/harriethabs it is a mini-digital voice recorder:

Also, to find a camera, which likely has infrared built into it, turn all the lights off in the room (assuming it's night time), and use a smart phone camera to determine where that infrared light is coming from, since IR can only be seen by digital photography.

Although some IR may be blocked by the opaque lens, it's worth the try.

I would disable the recorder, and place it back where it was found, then buy one of these Wyze cams for $20 (Which btw, has high degree of quality, I am glad I purchased a few of them), and only record with motion when someone in that general direction retrieves the device. You can also have reports sent to your mobile device and password protect the Wyze account as it is cloud based which uses AWS.

Edit: If you have an android device, you can use Ultimate EMF detector, to scan areas of your room. Sensor is located in center of phone, and will likely report around 40 µT (microteslla), and will rise when a device is nearby.

Ultimate EMF detector (free) for Android

The EMF app I use is free (they have a paid version of it too).

EMF measurements are a staple of science, so getting to know about them is useful on many levels.

You can buy hand held devices from FLIR, K2 and others. You can get an emf app from itunes and from the play store.

Ghost hunters buy these things - because of reasons, I suppose. So there may be some woo woo level advertising for devices or apps. Features to consider:

• Is the device passive or can it ping it's environment?

• Is the spectral sensitivity in the bands of interest for your project?

• How sensitive is the device?

• Some (most?) apps are actually just Gauss meters (the m part of emf)

Quick tips:

• The more you understand physics and electronics, the more reliable the data reported will be to you

• When you learn about emfs, don't ignore Newton's other laws - they make most sense as a set

Finally: Welcome to the world of electro-magnetic spectral analysis! Now go out there and interrogate a dynamic energy field.

• There are other, quite useful devices, circuits and methods out there

You can get an EMF meter app for your phone.