LT-M550 DIGITAL PRESSURE GAUGE         The Pressure Gauge is suitable for use in air conditioning system and cooling system maintenance and commissioning.   Specifications Applied Refrigerants: CFC,HCFC,HFC   Unit Measurements Pressure: kg/cm, in.Hg, mmHg, bar, psi, kPa Vacuum: kg/cm, in.Hg, mmHg, bar, psi, kPa. Micron Temperature: °C, °F   Display Range High Side: 0 psi to 725 psi (0 kPa to 5000 kPa) Low Side: 0 psi to 435 psi (0 kPa to 3000 kPa) Vacuum: 29.92 in.Hg to 0 in.Hg Temperature: -40°F to 203°F (-40°C to 95°C)   Maximum Overpressure: High Side: 10875 psi (7500 kPa) Low Side: 6255 psi (4500 kPa) Vacuum: 59.84 in.Hg   Tolerance Pressure High Side: ±2.175 psi(±15kPa) Pressure Low Side: ±1.45 psi(±10kPa) Vacuum: ±0.08859 in.Hg(±0.3kPa) Temperature: ±0.5°C Power Supply: 9V Battery for 30 hrs                          LCD flashes to indicate low battery Auto Shut-off Time: 30 min. Under no operation (Extended 30 min by any button touch except On/Off Button) Background Lamp Auto Shut-off Time: 10 min. Operating Temperature: 10.4°F to 120.2°F (-12°C to 49°C)   INCLUDE: l LAX digital gauge l Charging hoses(60” or 72”) l Vacuum sensor l Temperature sensor l Two valve manifold l Aluminum case   Note:Pressure or temperature below or above the rated ranges will cause a “FULL” to be displayed.