BRAND : GTT ITEM NO.: DGC12 DIMENSIONS : 12 INCH - 300 MM . LARGE VIEW DIGITAL SCREEN IN STAINLESS STEEL HOUSING . MEASURING RANGE: 0–300 MM / 0–12 INCH . COMPLETE WITH HEAVY DUTY PLASTIC CASE & SPARE BATTERY INTERNAL & EXTERNAL MEASURING TIPS. METRIC & IMPERIAL. SWITCH THUMB ROLL. DEPTH MEASURING BLADE. POSITIVE LOCKING SCREW. COMPLIANT FULL SPECIFICATION MEASURING RANGE: 0–300 MM/ 0–12 IN ACCURACY: + 0.02 MM/ 0.001 IN (100 – 150 MM) RESOLUTION: 0.01MM/ 0.0005 IN REPEATABILITY: 0.01MM/ 0.0005 IN MAXIMUM MEASUREMENT SPEED: 1M/S POWER: 1 X 1.5V SR44 (SILVER OXIDE CELL) BATTERY + SPARE BATTERY LIFE: 1 YEAR FOR CONTINUOUS USAGE / 3 YEARS UNDER NORMAL OPERATION THIS EXCELLENT TOOL HAS A HARDENED STAINLESS STEEL BODY AND ATTRACTIVE FUNCTIONAL FINISH ELECTRONIC DIGITAL CALIPER 300MM LCD DISPLAY MADE OF HARDENED STAINLESS STEEL INTERNAL EXTERNAL AND HEIGHT DIMENSIONS CAN BE EASILY AND ACCURATELY MEASURED LINEAR CAPACITIVE MEASURING SYSTEM BASE MEASURING FUNCTION: INSIDE OUTSIDE DEPTH AND STEP MEASURING ZERO SETTING IN ANY POSITION WITHIN MEASURING RANGE WITH A SMALL LOCKING THUMB SCREW WHICH LOCKS THE JAWS IN PLACE. MADE IN CHINA