[DIGITAL DISTOR WITH LCD] HD electronic digital display: Stable, reliable, accurate; If you use the "/" button, you can switch between degrees and indexes. [Locking function] The two chamfer feet can be locked in the desired position or angle with the locking screw. [Keep and Cancel Function] Using the Keep button on the chamfer, the data can be stored during the measurement process, you can start the data during the measurement process under any what angle. Reset to zero simply in inactivity 5 minutes, automatically turn off the measuring range [Accuracy Score]: 0-360; Precision: 0.5; Repeated Accuracy: 0.05; Direct ruler Maximum length: 200mm, material: Stainless steel [Masturators] Master Master is definitely the practical addition to any toolbox Product Information: Product Name: IP54 waterproof two in one down rule (product without battery): Reading value: 0.05, Accuracy error: positive and negative 0.3 1, professional measurement of internal and external angles and angular cables 2, angle and straight 2 are 1; 3.0-360 Full measurement; 4 with lock button, convenient lock angle; 5, stainless steel material, it is not easy to rust. & nbsp; 6, pull the boot; 7, power supply: 3V (CR2032 1 capsule), the product does not charge the battery over 8, button function: Open / Clear key, data key, division conversion key. & nbsp; Delivery quantity: 1 piece