This is a replacement gauge for the 46060 Series 41 Digital Manifold Kit. This hvac gauge features a maximum pressure of 800 psi and has 5 selectable units (psi, bar, MPa, kg/cm2, and kPa). The CR123A battery has a tested 2 year life expectancy for continuous operation without backlight. It comes pre-programmed with 21 common refrigerants including R-22, R-134a, R-410a, and the new R-1234YF.