Micrometer caliper LCD with digital Display for DIY Battery is included. Would make a great gift Idea!
Digital Caliper Battery Hack - SparkFun Electronics
Mitutoyo 500-505-10 Digimatic 0-18''/450MM Stainless Steel Digital Caliper W/ Data Output
150mm LCD Digital Electronic Vernier Caliper Gauge Stainless Steel Micrometer US | eBay
Amazon.com: Hornady Digital Caliper, 050080-6 Inch Electronic Digital Caliper Measuring Tool with LCD Display to Precisely Measure Reloading Supplies with .001 Inch Accuracy - Includes Storage Case & Battery : Industrial & Scientific
Digital Caliper 6 Inch Electronic Vernier Caliper 100mm Calliper Micrometer Digital Ruler Measuring Tool 150mm 0.1mm - Calipers - AliExpress
Gyros Digital Caliper Measuring Tool – 6 Inch Stainless Steel Micrometer Caliper - Inch/MM Conversion and Large LCD Screen – Auto-Off Feature – Electronic Vernier Calipers 2 Batteries Included: Amazon.com: Industrial & Scientific