For digital calipers (range ?40″) and digital height gage
Through wireless transmission, the measurement data can be transmitted to computers or mobile phones
For windows and android systems
Wireless zigbee protocol, conforming to IEEE802, 2.4GHz band
Transmission distance is 49ft (Under the condition of no obstruction and no electromagnetic interference. The transmission distance of built-in wireless measuring tools can be found in their respective introduction.)

3M 54109, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 1-1/2 in x NH A MED, 7100075533, 200 per case
3M 22669, SecureFit Hard Hat CHH-R-W6-SL, Cap Style with Ratchet Adjustment, White, 6/Case, 7100292304
Dynabrade 98263 3/8" NPT Male Plug
3M 77737, ROLOC DISC PAD TS AND TSM, EXTRA HARD, 3 IN 1/4-20 INTERNAL, 7010299209
3M 07148, Dual Airline Back-Mounted Breathing Tube SA-2500/07148(AAD), 7000002006, 1 EA/Case
3M 45093, Roloc Disc Pad TR, Extra Hard 3 in 1/4-20 Internal, 7000045285
3M 45098, Roloc Disc Pad TR, Soft 1-1/2 in 1/4-20 Internal, 7000045277
Standard Abrasives 877012, Unitized Mounted Point, 731 A21 x 1/4 in, 3M 7100074611
3M 26112, PPS Series 2.0 Spray Cup System Kit, Midi (13.5 fl oz, 400
mL), 200 Micron Filter, 7100169390 