Pressure recorder remote reading with programmable speed and pressure ranges. The Supco Pressure Recorder with remote sensor employs advanced microcontroller design that enables this versatile instrument to accurately measure and record pressures. Selector switches located on the face panel allow for the recording of 3 different pressure ranges at 4 different recording speeds. Standard adapter for 120 VAC operation. Battery backup assures normal operation during power interruptions. 12 VAC operation - allows use in vehicular or marine operations. Furnished complete with 2 cartridge pens and 60 (6" diameter) assorted charts. Convenient fold down carrying handle. Snap-on extra support legs. Free standing or wall mounted (using existing keyhole slots located on back of the case). Weather proof NEMA type 4X (CSA type 4) case optional. Pressure range psi model: 0 to 500 psi, 0 to 150 psi, 0 to 50 psi. Ambient operating temperature range: 32 degree F to 140 degree F (0 degree C to 60 degree C). Ambient operating relative humidity: 96 percent maximum. Chart speed selectable: 6 hours, 24 hours, 7 days, 31 days. Chart rotation mode: Single turn or continuous. Chart speed accuracy: +/-1 percent. Chart Diameter: 6 inches. Pressure accuracy: +/-1 percent F.S. Display: 3 digit LED 0.5". Remote pressure sensor: 6 long stainless steel 17-4 pressure port 1/4 NPT, burst pressure 2500psi, rated for any gas or fluid compatible with 17-4 stainless steel. Primary power supply: 120 VAC, 50/60Hz. 12 Volt vehicle operation with optional adapter. Battery backup: (8) AA Alkaline batteries (not supplied). Battery life: 48 hours continuous use. Recording pen: ink type.