... 4.Advanced instruments 5.operation is v range of applications :HR-1000 animal sperm densitometer is in the UV / visible region ... bulls , rams , pigs , horses , deer , camels , etc. .instrument features:1.HR-1000 the animal sperm densitometer is a set of optical ... .5% τTransmittance repeatability of ± 0.2% τStability 0.004A / h HR-1000 animal sperm densitometer