Milltronics Motion sensing probes: heavy duty, 100 mm measuring range, for use with RMA, MFA 4p, WM300 MFA, or other control. Cable length: Standard length (per notes in model section) Model: MSP-12, 1/2" NPT cable inlet no cable Approval: Ordinary Locations/General Purpose (Non-Ex), CE, UKCA, RCM, EAC, KC, CCSAUS, FM