Thermo Direct Exposure Probe (p/n 119300-ODEP) OPTIONAL: direct probe controller (m/n DPC) (p/n 1R119300-5000) and ION Volume Insertion/Removal Tool. For use with Thermo mass spectrometers. Please contact us for complete Thermo refurbished/used mass spectrometer system, warranty and service contract details. (Thermo probe)