ITEM NAME:New Carbon Fiber Composites Digital Thickness Caliper Micrometer Guage #gib Store Home Promotion Hot Item Add to Fav.Extra Strong Carbon Fiber Composites. 1 x Carbon Fiber Composites Digital Thickness Guage. Resolution: 0.01mm/0.0005". New arrival. Relative Humidity: 0% - 80%. Working temperature: 0-40 ºC. Battery: 1.5V LR44/SR44.