• Hermetic design minimizes possibility of refrigerant leakage Premium patented 3% high accuracy moisture indicator (Compare to 10% on most competitive models) With accurate color calibration at low mg/L levels All brass corrosion-resistant body and solid copper fittings

Protech sight glasses provide a quick visual diagnosis of refrigerant and moisture levels within a system. The sight glass indicates if the system has the proper refrigerant level, a restricted drier or excessive pressure drop and provides early warning that a potential failure exists that could result in corrosion, chemical damage, restricted flow or even compressor failure.