Until December 16th 2025, any purchase of the VAPex Pro or Apex2 Plus/Pro air sampling pump kits, which include five pumps, will include the Flow Detective™ Plus air flow calibrator at no additional cost. When operated with Casella’s Apex2 or VAPex air sampling pumps, the Flow Detective™ Plus provides closed-loop automatic calibration, eliminating the need for manual inputting and significantly saving time on pump calibration.
See how the Flow Detective™ Plus can save you time when calibrating pumps by being the first wireless calibrator for air sampling pumps and for a limited time only, orders placed for 5-way pump kits, Apex2 (Plus or Pro) or VAPex Pro air sampling pump kits will qualify for an electronic flow meter (Flow Detective™) at no additional cost.

How it Works:

1. Purchase an Apex2 or VAPex 5-way pump kit
2. Automatically receive the Flow Detective™ Plus, electronic flow meter at no additional cost

Air Smapling Pump Options:

VAPex Pro 5-Way Kit – Low Flow Air Sampling Pump
Designed for the low flow sampling of vapours and gases in working environments. With a wide flow range of 20mL-500mL / min, the VAPex personal sampling pump has great battery life and ultra quiet operation.

Apex2 Plus or Pro 5-Way Kit – Medium Flow Air Sampling Pump
Whatever media you are using, you can be assured that the Apex2 Plus and Pro Air Sampling pumps have the power to handle your monitoring regime with flows up to 5L/min.

Additional Information
*Applicable part numbers for the pump kits are: APEX2ISPLUS/KIT, APEX2ISPRO/KIT, VAPEXPRO/KIT. If purchasing a VAPex a charger base for the FlowDetective will also need to be purchased, part number 209152B/KIT.