The Universal 44XR personal or area air sampling pump provides a flow range of 5 to 5000 ml/min. This economical turn-on-and-sample air sampling pump offers run times up to 12 hours for sampling particulates and gases/vapors. The pump is ideal for use with sorbent tubes, filter cassettes, size-selective samplers, sample bags, and impingers.
The Universal 44XR air sampling pump is UL Listed for intrinsic safety.

Performance Profile

Operating Range

1000 to 5000 ml/min (UL Listed model)
1000 to 3000 ml/min (MSHA-approved model)
(5 to 500 ml/min requires the Cat. No.224-26 Series adjustable low flow holder) 
Requires 1/4-inch ID tubing


34 oz (964 gm)


5.1 x 4.7 x 1.9 in (13 x 11.9 x 4.8 cm)

Compensation Range

1000 to 2500 ml/min at 40 inches water back pressure
3000 ml/min at 35 inches water back pressure 
4000 ml/min at 20 inches water back pressure 
5000 ml/min at 10 inches water back pressure

Flow Control

Holds constant flow to ± 5% of set-point

Run Time

NiCad Battery: 8 hours minimum at 4000 ml/min and 20 inches water back pressure; dependent on media used. See Table 3.
NiMH Battery: 12 hours minimum at 4000 ml/min and 20 inches water back pressure; dependent on media used. See Table 2.
Battery Eliminator: Pump provides extended runs.


1/4-inch ID tubing, required

Flow Indicator

Built-in rotameter with 250-ml division; scale marked at 1, 2, 3, 4, and 5 L/min

Power Supply

6.0-V plug-in NiMH battery pack, rechargeable, 3.5-Ah capacity 
A battery eliminator is available (see Ordering Information); use voids the UL Listing for intrinsic safety.

Intrinsic Safety

UL Listed for Class I, Division 1 and 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; and Class III, Temperature Code T3C
ATEX-approved models are available. Contact SKC.

Operating Temperature

32 to 104 F (0 to 40 C)

Storage Temperature

-4 to 113 F (-20 to 45 C)

Charging Temperature

50 to 113 F (10 to 45 C)

Operating Humidity

0 to 95% non-condensing

Multiple-tube Sampling

Built-in constant pressure regulator allows user to take up to four simultaneous samples with rates up to 500 ml/min each (total combined flow 1350 ml/min maximum) using the optional adjustable low flow holder accessory.

RFI/EMI Shielding

Complies with requirements of EN 55022, FCC Part 15 Class B, EN 50082-1
Frequency range of the radiated susceptibility test was 27 to 1000 MHz
CE marked

Additional Specifications

Built-in fluid/particulate trap
External see-through filter housing
Tamper-resistant control cover
Tamper-resistant compensation adjustments
Built-in accessory mount
Stainless steel belt clip
External exhaust port
All non-plastic parts made of corrosion-resistant materials
RFI and EMI-shielded case

Additional Features

One-year warranty
Ultra-quiet operation
Pulsation-free flow
Impact-resistant case


Protect sample pump from weather when in use outdoors.


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Personal Sampeling Pumps

  • Product Code: Standard 44MTX , Deluxe PCXR8
  • Availability: In Stock
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