Series 16M Solid State Plug-in Modules offer general purpose, high-sensitivity and field-sensitivity control as well as a DPDT load contact option. Series 16M – General Purpose Designed for either differential or single-level service. U.L. “Motor Controller” listing, 8-pin socket with screw-type connections make the unit easy to install and service. Sensitivity of up to 1 million ohm/cm. Series 16DM – DPDT Load Contact Similar to Series 16M but with DPDT load contacts. Eliminates the need for slave relays. 11 pin octal plugs. Requires little panel space. General purpose single-level or diffferential applications. U.L. listed. Series 16HM – High Sensitivity Series 16HM is similar to Series 16M but provides higher sensitivity up to 5.5 million ohm/cm. Probe voltage is 12 VDC for applications with low conductive media. Series 16VM – Field Selectable Sensitivity Similar to Series 16M but with the added flexibility of field adjustable sensitivity, made possible through external setpoint resistors. Uses 11 pin octal socket. U.L. listed.