Check the listing for details. Mastercool 84472 R134A Black Series Digital Manifold. Condition: New. Listed at 216.99 USD. Mastercool 84472 R134A Black Series Digital Manifold Mastercool's Black Series Compact 2-Way Digital Manifold Gauge Set effortlessly performs pressure and temperature calculations and displays them on a large blue backlit LCD display. Constructed of the finest materials and machined with precision to the highest quality standards this compact manifold provides automatic shut-off, units conversion, over range alarm, max and min values and refrigerants selection providing for a powerful tool for the hard-working technician Compact black anodized aluminum block with matte chrome fittings offer an extremely portable solution to fit the needs of every busy technicianEasily perform pressure/temperature calculations for up to 91 different refrigerants including R134a, R410a and R22 refrigerantsUnit conversion between MPa, kPa, bar, psi, kg/cm2, inHgLarge 4-digit blue backlit LCD display provides vibrant readings in even the darkest of environmentsDisplays alarm indication when over range, Celsius or Fahrenheit designation and low battery warning directly on the LCD screenLarge sight glass for quick visual refrigerant checksEasy to grip knobs