Yellow Jacket 42045 A2L Heat Pump Manifold Only, R 32 454B 410A, °F JB Connecting the transmitter to a Tool_Electrical Tester Connecting the transmitter to a bare conductor with the included alligator clips and test leads will always provide the most accurate results heavy duty wire strippers have shear cutting knives for a lower force to cut copper wire and larger cable such as Romex® and other nonmetallic (type NM) cable Because the low side gauge of the YELLOW JACKET® A2L Heat Pump is also designed for pressures up to 800 psi The YELLOW JACKET® A2L Heat Pump Manifold features two 800 psi gauges to read all heat pump pressure conditions