Because instruments and meters belong to a wide range of industries and can be subdivided into different fields, there are more tender announcements on the whole. This can be confirmed by using swordfish beacon query:

As can be seen from the above search results, the update time of instrument bidding announcement is relatively new, and the number of updates is also relatively high. If you want to check the instrument bidding announcement, you may wish to use the swordfish bidding announcement.