For digital micrometers
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 45179, Roloc Disc Pad TR, Medium 4 in 1/4-20 Internal, 7000045281
3M 55886, Rugged Comfort 6581 / 55886 Head Harness Assembly, System Component, 7000128251, 20 EA/Case 