... Fluid Resistant Housing. High accuracy bench top ph meter 92 series meters includes models 920, 921 ... and immerse pH electrode into indicated pH calibration solution, press ENTER key and meter is automatically ... pH Electrode, ORP Electrode (Only for 922 meter), Standard pH Buffers, Temperature Probe, Power Adapters. Warranty:One year after purchasing. High accuracy bench top ph meter, pH / ORP ...