| Picture | Model | Name | Feature |
 |
LZ-807 | Fixed centrifugal tachometer | SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD |
 |
LZ-804, 806 | Fixed centrifugal tachometer | SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD |
 |
LZ-30, 45, 60 | handheld centrifugal tachometer | SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD |
