Metrix Plus 1.5 V Leeb Hardness Tester works on both soft and unsmoothed surface up to three levels. It can measure metals such as hardened steel, cast iron and stainless steel. Hardness Tester is resistant to shock, and water-proof can handle the harsh Ultraviolet rays of the sun. It has buttons on the front panel to adjust the light emitted by the backlight. It can handle up to -25 degrees of cold temperature. The 1.5 V Leeb Hardness Tester is resistant to all weather conditions as it consists of a silicone protective cover. The slim external probe can reach narrow areas with ease. Product Specification- Brand- Metrix Plus Dimensions- 130 x 76 x 31 mm Display- LCD with backlight Model- MI 970 Operating temperature- - 20 to 60 Degree C Measuring range- 200 – 900 L Power supply- 2 x 1.5 V Battery Memory Storage: 50 Groups of Data Weight- 340 grams