Fowler / Sylvac Electronic Micrometer with Bluetooth Quick displacement thimble and ratchet saves time and eliminates operator feel! Large, easy-to-read display with inch/metric conversion! Features Include... Range 1.18"-2.6" / 30-66 mm Maximum error: .00016" / .004mm Auto On/Off Position recall IP67 rated protection Quick displacement thimble Non-rotating spindle Bluetooth Connectivity Carbide anvils Includes a shop-hardened case. Includes LIFETIME WARRANTY