Sensor substitution

[waltr]

Ok, thanks for a description. I couldn't remember where I got it but now remember and it was for anti-thief tags.
These tags have a space that does not 'clamp' the magnetic material. This makes sense from your experiments.

[Atul Asthana]

I have used the metglas strip of an eas tag in an oscillator (4093 (5V) / TL072 (9V)). I used 3 mm plastic straw as a casing with polystyrene endcaps, and about 1000 turns. Yet to test for stability.

[sinclairuser]

hi all what about these if genuine speake units are not available, https://www.fgsensors.com
i found this by accident and remembered this thread.

[Faroukbns]

Hello everyone
I need the fgm3 layout file and the frequency to voltage converter if anyone has managed to do it

thanx in advance

[SimonS]

For 5.6€ you can buy converter here Converter Circuit Board (Frequency to Voltage ) | FG sensors. P.S you can always use also "geotech" coupon for discount!