The BUCK Libra Plus LP-20 air sampling pump is a good choice for a variety of applications in which personal exposure needs to be assessed; it is designed to draw an air sample through analytical media (i.e., cassettes, detector tubes, impingers) at a flow rate between 5 to 20 Liters per minute (L/min). The single diaphragm pump is encased in high-impact, anti-static Lexan material and proves to be a very quiet pump. The LCD display consists of 2 lines and shows the user flow rate, accumulated volume and elapsed time of the sample. It is also user-friendly, as you choose RUN for sampling and MENU to reset pumps from the main display. This pump is equipped with a patent-pending electronic circuit board that extends the life of the powerful Nickel Metal Hydride (NiMH) triple battery pack (4.8V, 6.45Ah) to ~30 hours (continuous use at 5 L/min). The keypad locking system is password protected for tamper-proof operation and tools are not needed to use and modify the pump.

Features:

• Constant flow, high back pressure capability for 25mm 0.45u asbestos filters
• Flows up to 20 LPM for special cyclone requirements
• Flow compensation for filter plugging and battery voltage
• Dual flow range easily handles Impingers, cyclones, and tubes
• Auto-restart within one minute of a flow fault
• Battery pack rechargeable while attached or separately
• Stainless steel belt clip with built-in tripod connector