hellma 176.700-qs compact flow through cell yellow
this is a a hellma 176.700-qs now i have three of these by the same number but on the outer box they each have a different color name on them. this one is YELLOW light path = 10 mm centre 15mm this is all i can say that i know about these. http://www.sigmaaldrich.com/catalog/ProductDetail.do?D7=0&N5=SEARCH_CONCAT_PNO%7CBRAND_KEY&N4=Z626988%7CSIGMA&N25=0&QS=ON&F=SPEC this website will give you a bit more info on this item. ask other questions you have-- what is in the photo is all that is included

