Features: Made of high quality-plastic, it-is solid, durable and good performance-, long service life. Simple pointer zeroing, high accuracy, easy operation and sensitive to detect electric current. It can be widely applied in education, laboratory and scientific applications and industrial areas. The transparent protective shell-can prevent it from-dust and reduce damage. The reading in the galvanometer is-quite large and obvious, which makes it easy to read and recognize. Specifications: Material:Plastic Size:Approx.8.6x5x7.8cm/3.38x1.96x3.07inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Galvanometer