Check the listing for details. Gemred Electronic Digital Caliper 81204-M - Gem Red. Color: Silver, Condition: New. Listed at 34.99 USD. Gemred Electronic Digital Caliper 81204-MThis high precision digital readout caliper has a very robust all stainless steel construction. Use for internal, external, step and depth measurements. Accuracy is 0.01mm(0.001″) and maximum measuring distance 155mm(6″). Zero can be set at any point along the range, and the display is easily switched from a metric to an imperial reading. It has an auto shut-off feature and takes a standard SR44 battery (supplied). N.B. Philips 00 screwdriver required for battery compartment.Key FeaturesRobust stainless steel constructionHigh precision digital readoutImperial or metric display at the touch of a buttonMeasures external, internal, step and depthZero to 155mm(6″) by 0.01mm(0.001″)FEATURE► - Thumb Wheel and Lock Mechanism► - Zéro Button Set Any Point to Zéro * Low Battery Indicator► - Digital Display Reads Inches, Fraction, mm► - Measures Outside, Inside, Depth and Step Specification Accuracy: 0.001‘’ Resolution: 0.0005", 0.01mm, 1/64" Measure range: 0 to 6", 0 to 150mm Battery: 1* LR44 battery (included and come with 1 spare battery)GemRed 81204 Digital Caliper (Metal) (E25)