; Fluke 985 Fluke 985 £30 /day. Minimum hire 7 days. From filter testing to IAQ investigations, the Fluke 985 airborne particle counter is the portable solution for determining airborne particle concentrations. Details Hire now ; Fluke 983 Fluke 983 £20 /day. Minimum hire 7 days. The Fluke 983 particle counter simultaneously measures and display 6 channels of particle sizes (down to 0.3 μm), temperature and humidity Details Hire now