- Brand: LAISAI / Lacey Laser
- Model: SW
- Item: S series
- Color classification: the new SW-S50 meters 'a key test high-band USB' official standard new SW-S70 meters 'a key test high-band USB' official standard new SW-S100 meters 'one key test high-band USB' official standard With Bluetooth function
- Decoration and construction content: installation works
- How it works: laser
- Distance measurement: 100m
This section is not included in the remote areas of the baby, not including the region include: Tibet, Ningxia, Qinghai, Gansu, Xinjiang, Inner Mongolia, Hong Kong, Macao and overseas.