The range of this tension gauge can be measured from 10mN(1gf)-5,000mN(500gf). So, it is possible to measure a high range of tension. (mN or gf selected by switch.)
It is possible to only replace the TM501 attachment with TM502 attachment included, and to measure both a standard L and large type M bobbin cases. .
- US Warranty 1 year limited warranty on defects in materials and workmanship.
- Non-US Warranty: 30 days parts and labor
Not only under thread, but also upper thread
Towa DTM-A1 L & M Bobbin Case Digital Thread Tension Gauge, 0-500g Pull
Only Difference in DTM-A1 and DTM-A2 Bobbin Case Holders is the TM501 and TM502 attachment brackets shown.