The general purpose, battery powered drum alarm provides reliable liquid level monitoring of 55-gallon drums. The stainless steel float assembly is available in three configurations including high and low level alarm. In the event of an alarm condition, the battery powered LED will actuate to alert the user. Select the compact alarm which is mounted on the float stem, or the remote alarm which is separated from the float stem with a 72" (1.82m) cable. Orientation: Vertical. Alarm: LED alarm standard. Supply voltage: 9 volt battery. LED indication: High and low alarm. Process temperature: -40 to 302 degree F, -40 to 150 degree C. Pressure: 250 psi (17.23 bar). Float material: 316 Stainless steel. Stem/fitting mat: 316 Stainless steel. Grip rings: P-15-7 Mo SS. Float SG: 0.73 (+/- 0.02). Contact rating: 30 watts SPST, 240 VAC (0.14A resistive), 120 VAC (0.28A resistive), 120 VDC (0.07A resistive), 24 VDC (0.28A resistive). Wire type: 2 or 4 conductor, #22 AWG (-S401, -S501, -S601 only). Wire length: 6' (1.82m) (-S401, -S501,-S601 only). Wire jacket material: Halar jacketed (-S401,-S501, -S601 only). Process mount: 3/4" NPT. Enclosure rating: NEMA 4. Enclosure material: Polycarbonate. Classification: general purpose. Compliance: CE, RoHS, Approvals: UL.