There are too many so-called 'paranormal investigators' chasing too few real phenomena.
Because of this, many impatient 'investigators' console themselves with nonsensical artefacts and a plethora of useless electronics.
Be different. Put your investigation first. Always remember, a box full of gadgets does not make you an expert.
The instruments you use to record phenomena are tools. Learn which are useful and which are worthless to you.
Become a sensible investigator rather than a gadget collector.