Features and Benefits: PSI/kPa pressure readings; R-22 and R-134a temperature readings in degrees Celcius; Replacement gauge that replaces 11692; Current R-134A machines include ROB34998 ROB34788NI ROB34788NI-H ROB34988NI ROB34888HD ROB34288NI and ROB34988NI-SL; Reads 0-120 PSI and 0-30 in Hg. .1/8″ NPTF male threads;