Basic Limit Switch - Plunger Actuated: Type - Wireless Basic Limit Switch; Head - Plunger; Poles/Contacts - SPDT 1NO 1NC; Force to Operate - 1.2 lb (5.5N) OF; Pre-Travel - max - 2.64 in (67mm) PT; Differential-Travel - max - 0.16 in (4.1mm) DT; Over-Travel - 2.05 in (52mm) OT; Contact Rating - 3.6 Vdc; Operating Temperature - -40 deg F (-40 deg C) to 160 deg F (85 deg C); Construction - Die Cast Zinc; Radio Frequency - WPAN 802.25.4; 2.4 GHz; Additional Information - NEMA 1,4,12,13,IP67; Manufacturer Series - Limitless