This instrument applies to determination of industrial and civil buildings in general sintered common brick masonry compressive strength of mortar in masonry.

1) Center guide rod using imported materials, high precision, wear-resistant;

2) Use of super-hard aluminum shell to avoid on-site work injury apparatus, to extend the service life;

3) Pointer slider with external spring ring structure, both convenient for the friction adjustment, and ensures that the pointer shaft and pointer slider friction uniform, to ensure the accuracy of the instrument. Peer-products is relatively high accuracy, quality and cheap, long service life.