Features [Easy to read] Clear LCD display, easy to read measurement results. [Not easy to rust] High-quality alloy measurement surface, not easy to rust, durable. [Easy to operate] The caliper adopts humanized design, easy to operate, and the resolution can be set to 0.001mm. [Scope of application] Knurled ratchet device for constant force measurement. [Locking device] The locking device of the digital micrometer is designed to fix the measured size and prevent the gaps adjustment due to the wrong surface. Specification: Item Type: Micrometer Battery Model: CR1632 3V (not included) Operating Temperature: 0℃-40℃ Storage Temperature: -10℃-60℃ Options: 0-25mm, 25-50m Package List: Package List 1: 1 x Micrometer Package List 2: 1 x Micrometer 1 x Accessory Package List