Specifications: This model, which is conforming to ASTM, AASHTO and UNI standards, consists of a spring loaded device which is graduated from 1 to 100 daN, supplied complete with a set of needle pint of 650, 325, 160, 65, 32 and 16 mm2 area. A sliding ring indicates the load reached. Supplied complete with carrying case.
It is used for finding out the rate of hardening of mortar sieved from concrete spring and a stem graduated from 0-70 kg x 1 kg. Six interchangeable penetration needles of areas 645, 323, 65 32 and 16 mm sq. is provided . The penetration resistance is measured by the force exerted to penetrate the mortar by 25 mm and is indicated by a sliding ring on the stem, which is graduated. Needle shanks are marked at every 12.5 mm. Supplied complete in a wooden carrying case.

Ltekonline are the manufacturers of Concrete Penetrometer Spring Type used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Concrete Testing Lab Equipment for Engineering Teaching Lab in Universities