Humboldt Concrete Rebound Hammer H-2987H 

Humboldt's H-2987H concrete rebound hammer provides a reliable, yet economical, alternative to the original schmidt hammer. It is a fast non-destructive way to test the in-place strength of concrete in structures, such as buildings, bridges, commercial structures, and pre-cast panels.
The unit supports the following standards: ASTM C805, BS 1881: PART 202, ISOIDIS8045, ENV 206, IGJ/T 23-2001
Rebound values are displayed on a mechanical sliding scale. These values can then be correlated to compressive strength by using the conversion table chart affixed to the hammer. It includes a grinding stone, a cloth carrying case, instruction booklet and conversion charts.
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Humboldt Mfg. Co., located in the United States, is a long-standing, leading manufacturer and supplier of testing equipment used for evaluating construction and civil engineering materials.
For full details visit www.humboldtmfg.com