Suited for R12/R22/R502/R134a/R404A/R407c/R410A
 Material:Blue steel case,snap-in polycarbonate len
 Size: 2¾"
 Range: -30inHg~140psi,250psi,500psi.
 Accuracy:±3-2-3%
 Connection: 1/8"NPT
 Model:
 70BL01:psi-kg/cm2,-30inHg~0-250psi,R12/R22/R502
 70BL02:psi-bar,-30inHg~0-140psi,R12/R22/R502
 70BL03:psi-bar,-30inHg~0-140psi,R22/R134a/R404a
 70BL04:psi-bar,-30inHg~0-140psi,R22/R134a/R407c
 70BL05:psi,-30inHg~0-350psi,R134a
 70BL06:bar,-1bar~0-15bar,R22/R134a/R404a/R407c
 70BL11:psi-kg/cm2,-30inHg~0-550psi,R22/R134a/R410a
 70BL12:psi-bar,-30inHg~0-550psi,R410A