Bluetooth Digital Thickness Gauge Model SSS-540-LW
Measuring Range : 12 mm. Resolution : 0.01 mm. Indication Error : ±20 μm Measuring Force : 1.2 or less Standard Contact Point : φ3.2 mm. (Ball) Anvil Form : φ3.2 mm. (Ball) Insertion Depth : 30 mm. Weight : 176 g.