1. Non-destructive testing, no special requirements for the surface of workpieces. (Avoid the destroy to the surface defects state of workpiece in traditional test methods, when debugging instrument, it only needs to prepare two standard samples of same material and workpiece) 

2. Fast, accurate, convenient. (Put the workpiece into the probe only when testing, its efficiency is ten times, even hundreds times than the traditional test method. For qualified and unqualified workpiece, it has sound and light alarm). 

3. High sensitivity. (The current and frequency adopted by different materials and heat treatment are continuous adjustable) 

4. The operation is simple. (Instrument is set with the function of man-machine conversation) 

5. Audio-visual display. (Double display mode of microampere meter and digital tube is adoptedfor direct reading of steel grade and hardness values)

6. Suitable for mass detection, ensure the quality of products. ( inspection of all raw materials and finished goods, rather than conventional sampling inspection) 

7. Light weight, AC/DC. (Instrument has built-in12V maintenance-free rechargeable batteries, suitable for field operation) 

Scope of application:

1. Magnetic conductivematerials (such as: wire rod, sheet, pipe, strip steel, steel billets, and all kinds of auto parts, standard parts, shaft bearing parts, forging parts, casting parts, etc.) 

2. The steel grade and type identification of the same size of materials. (Rapid separation of material) 

3. The hardness testing and fast distinguish of the same size of workpiece. (Rapid separation of hardness) 

4. For carbon structural steel can measure the carbon content of material. (Fixed carbon) 

5. Effective separation and identificationof defects on the material and heat treated workpiece. (Crack detection) 

6. Identification and separation of mechanical properties of materials and heat treated workpiece.  

1. Applicable specifications: same size is applicable (Both standard workpiece, irregular workpiece are available).

2.Error range:  a, Raw material： 0.03% C b, Brinell  10HB, Rockwell hardness 1HRC.

3. Resolution ratio: a,0.01%C; b, hardness：Brinell 1HB ，Rockwell hardness 0.1HRC.

4. Inspection Speed: 1000—1500 p / h.

5. Working power supply:AC 220V ±10V.

6. Dimension and weight: 340×160 ×200mm,8kg .

7. Type of external probe: telescope-feed probe, planar probe, pen probe

Operating temperature: -15~55℃

Storage temperature: -20~60℃

Relative humidity:less than 85%

Working voltage: AC220±10V