The LPV series variable volume pump from Lee Products is a positive displacement unit that can deliver variable dispense volumes in increments as small as 0.1 microlitres. Providing a more flexible alternative to conventional syringe and peristaltic pumps, the LPV is available in 50, 250, 750 and 1,250 microlitre volume sizes, is self-priming and has low power consumption. Operating pressure are -10psig (inlet) and 15psig (discharge).