Digital BW, The Print

Would appreciate info re Gretag DC19 densitometer.
I have not attempted profile making before, but am keen to use the QTR 
programme. My usage will be moderate, so minimum cost, within reason, 
would be my requirement.
 There are a large range of second hand densitometers available, all a 
bit confusing. For using in conjunction with QTR, would the above 
densitometer be suitable? or any other suggestions.
comments appreciated.
regards,
Peter