I wear one on my ankle.
Do i need a anti static building mat and wristband.
By redirecting the static these wristband devices assist in properly grounding your body balancing out any electrical charge differences between you and electrical parts.
Here are some more details about anti static wristband.
Dude an esd safe mat with a grounding cable and a wristband costs like 30.
It is best to have it plugged up and unplug the power connector off the motherboard.
Just take the other necessary precautions.
The grounding cable is what connects the anti static mat being used as a work surface to the electrical outlet.
Make sure you have one hand or your forearm touching some metal part of the case while working.
I am a field tech and have never carried around a mat or strap.
However having the mat and the wrist strap grounded at the same point does keep them in electrical balance.
You can buy mat spray and take care of it and use the same one for pretty much the rest of your life.
The wristband works by redirecting the static discharge through a cord which then follows an antistatic mat or another grounded conductor to the ground.
There s pretty much no reason not to own one.
They are normally used along with an antistatic mat that are placed on the working bench.
You do not need an anti static mat or wrist strap.
I am very careful though and a perfectionist so i handle each piece.
Unless 30 40 is really gonna cause some problems you might as well own one.