[Specifications]·Measuring range (mm): 25 to 50·Instrumental error (µm): ±1·Parallelism (µm): 1·Constant pressure device: Ratchet stop·Minimum display amount (mm): 0.001·Quantization error: ±1 count not included Flatness (µm): 0.3 Degree of protection: IP65 (IEC60529) Spiritual power (N): 5 to 10 Power supply: 1 button-type silver oxide battery SR44 No. 938882 Battery life : Approximately 2 to 4 years (during normal use)·Position detection method: Electromagnetic induction type rotary encoder[Features]·Achieves the world's highest level of performance. ·Battery life of about 2 to 4 years is realized, reducing troublesome battery replacement. ·A non-slip shape (convex shape) is used for the frame cover and surface panel for hand-held measurement. ·Oil-resistant materials are used for all plastic parts. Models with measurement data output function (MDC-MX/MXT) can configure statistical process control systems and measurement systems. ·Convenient interface and input tools are available that convert measurement data into keyboard signals and directly input them into commercially available spreadsheet software cells. ·There are two types of constant pressure device: ratchet stop type and ratchet thimble type. [Caution]- The standard accessory button-type silver oxide battery is for monitoring. ·Although the protection class is IP65, rust prevention treatment is required after use. International Buyers - Please Note.