The new LC-241 HPLC Autosampler, from EST Analytical, was designed as a low cost routine HPLC sampling system. The LC-241 PLUS can perform unattended repetitive automatic sampling as well as fast and simple single sample injections. Easy-to-use operation is accomplished through a clearly marked keypad along with menu driven options displayed on the back lighted LCD display. The optional drop counter allows independence from varying sample viscosities by determining the amount of sample flowing through the sample loop based on the number of drops rather than time. Easy access from the top side of the LC-241 PLUS provides for easy maintenance and service of the sampling valve and probe needle assembly.