60 70 80 90 degree Digital Welding Gauge art No:WG-100 Manufacturer: ROk International Industry Co., Limited. Brand: ROKTOOLS Zero setting at any position. 2. Metric / Inch system conversion at any position. 3. The digital welding gage is equipped with an output port Data can be input into a computer or a special printer via speciul connecting cable. The working way of the interface: Synchronous serialization. Data: Binary code, 24 bits. Each datum will be transferred twice. The cycle is 300ms (2Oms in fast reading mode). Tmnsrnitting time 0.5ms. Four wires (from left to right) Negative Power (-), Clock Pulse CP, Data D, Positive Power (+). Pulse Range of Data: 0 Level ~0.2V, Level~ IJV. Clock Pulse CP: 90KHz, effective for high electrical level. Resolution: 0.01mm/0.0005"