... . Product Feature: (1)In accordance with ISO 2954, used for periodic measurements, to detect out-of-balance, misalignment and other mechanical faults ... ) Probe(Spherical) 5,Brochures 6.Piezoelectric sensor Optional accessories: 1.Bluetooth 2.USB adaptor for RS-232C 3.RS-232C cable & ... delivery.If need it in addition,10 meters and100 meters distance can both be chosen.Please kindly indicate if you need ...