SOLVED !!!

[rh_is_category tax="product_cat" ids="1,2"]


Your code 

[/rh_is_category]

Dear I found this code (changed the meta name) in your demo. how can I make it only appear for certain product categories

<div class="border-top mb10 mt15"></div>

<ul class="font80 mb0 ml0">

<li class="ml15 list-type-disc mb0 lineheight15"><span>Minimum Salary:</span> [wpsm_custom_meta field="minimum-salary" type="attribute" show_empty=1]</li>

<li class="ml15 list-type-disc mb0  lineheight15"><span>Rewards:</span> [wpsm_custom_meta field="card-rewards" type="attribute" show_empty=1]</li>

</ul>