Waterproof
0.1 resolution, or 0.01 resolution
or ?

Fast readout
Fast indications as follows:
refers to ?waterproof?
?B? refers to ?beeper?
refers to fast readout of ?10? readouts in water tank?
refers to fast readout of ?30? readouts in water tank?
?D? refers to ?dual scale of ? & ??
?C? refers to ?resolution in ? only?
?F? refers to ?resolution in ? only?
For example, MT118-BWQD refers to rigid thermometer w/beeper, waterproof, fast readout of 10? and dual scale