Resolution 0.001mm/0.0001″ (resolution of 3506-100A and 3506-150A is 0.001mm/0.00005″).
IP65 dust/waterproof.
Button function: on/off, set, mm/inch, ABS/INC, data output.
LR44 battery, automatic power off. Ratchet stop.
Carbide measuring faces.
Supplied with setting standards.
Optional accessory: data output cable (code 7315-30, 7302-30).

3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182
3M 55887, Rugged Comfort 6582 / 55887 Quick Latch Head Harness Assembly, System Component, 7000128252, 20 EA/Case
3M 55701, Stikit Film Disc w/Tab 375L, P180, 6 in x NH, Die 600Z, 7100106619, 250 per case 