The 1109 Insize Digital Vernier Caliper, with inside and outside measuring jaws. Comes with HOLD button to lock readings. Available with or without thumb roller for fine adjustment and high speed measurement. The Caliper is made of stainless steel for longer tool life and durability from machine shop wear. With optional SPC cable data output. Measurement range up to 300mm (12). Resolution: 0.01mm. Button function: on/off, zero, hold. Automatic power off (move digital unit to turn on). Lock the reading. Battery CR2032. Data output. Made of stainless steel. Optional Accessory: data output cable (code 7302-SPC5A).