Sold as is, see photos to personally determine condition and see all included pieces. No visible stains or damage that I can see, EXCELLENT CONDITION.

Temperature Display °C and °F; Time Delay; Zero Calibrate with Water
Bellingham + Stanley’s OPTi digital hand held refractometers are versatile and simple to operate and as one of the smallest instruments of its type on the market, provide for excellent on-the-spot concentration analysis that is automatically corrected for temperature. This produces highly reliable results, particularly when measurements are taken by a number of different operators.