For 35+ years A. P. BUCK, INC. has manufactured the most advanced and innovative instruments for indoor air sampling.We supply air sampling pumps and calibrators for industrial hygiene, indoor air quality, occupational health, environmental, health physics and safety disciplines. For more information on our product lines just click on the link that interests you.


Buck Libra Plus LP-1 120V pump Kit
Item Item Details
(Price is for domestic US market only)
Buck Libra Plus LP-1 120V pump Kit
Item Name:
Buck Libra Plus LP-1 120V pump Kit
Item #:

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Flow Range

100 to 600 cc/min in Constant Flow Control

5 to  99 cc/m in Constant Pressure Control* 

*with  Universal Low Flow Holder,  P.N. APB- 109033


This Personal Air Sampler consists of a pump contained in a high impact RFI/EMI shielded case, exclusive electronic circuit board (patent pending) for constant flow control, an LCD display with 2 lines of 16 characters, a single diaphragm pump mechanism and a rechargeable nickel metal hydride battery pack.

The purpose of the Libra Plus air sampling pump is to draw air contaminants in through a sampling media such as sorbent tubes, bubble impingers, long-duration color detector tubes; to gauge personnel exposure to gases, vapors, particulates, aerosols, etc. No tools are required to operate this pump and Keys lock to prevent it from being turned off. The Main display allows quick selection to RUN (for sampling) or MENU (to reset pumps data).

Other features of the Libra Plus include elapsed time, flow rate and accumulated volume. The built in timer count down the sampling time and automatically turn off the pump. All data is saved and cleared for next sample under the MENU “Clear All Data” option.

Now includes Standard Smart NiMH charger at no additional cost. This charger will charge the pump battery pack (APB-109029) in approx. 2.5hrs


  • Runs 20+ hours @ 300cc/min (@5" Backpressure)
  • Accuracy +/- 5% of display reading or pump Flow Faults
  •  “Auto-restart” within one minute of a Flow Fault
  • Displays: elapsed time, accumulated volume and flow rate
  • Universal Low Flow Holder for flow 5 to 99 cc/m with tubes
  • Flow Compensation for filter plugging and battery voltage
  • Includes Standard Smart charger with USB Mini B plug
  • Optionnal extended run triple packs for three times the run
  • Battery pack rechargeable while attached or separately
  • Compact, rugged and quiet
  • Stainless steel belt clip with built-in tripod connector
  • Key pad lock system
  • One year warranty

    Click here to Download Technical Literature

Flow range 100cc/min - 600cc/min.

Money Orders and personal Checks also Accepted, choose Pay By Mail during checkout!

Notice: This publication is intended for general information only and should not be used as a substitute for reviewing applicable government regulations, equipment operating instructions, or legal standards. The information contained in this document should not be construed as legal advice or opinion nor as a final authority on legal or regulatory procedures. A.P. BUCK Inc reserves the right to make changes to information, features, and specifications of any product without notice. A.P. BUCK Inc has made every effort to ensure the accuracy of information displayed on this Website, however, A.P. BUCK Inc. is not responsible for typographical errors appearing on this Website. Price and availability information is subject to change without notice.

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