The Air Quality Calibrator Kit audits and calibrates PM10 and PM2.5 particulate matter samplers to regulatory standards. The kit is compatible with all PM air monitors. Remotely sample measurements with the Bluetooth antenna plus the Alicat Connect app. It also has added data logging capabilities to integrate with management software. Accurate measurements include NIST-traceable mass flow, pressure, volumetric flow, and temperature measurements to within ±1% of the reading.  The portable, battery-powered calibrator mounts directly to your air monitoring (FRM or FEM) instrument.  This is done to negate the effects of wind gusts. It is also built to withstand all weather.  The FP-25 calibrator is IP67 rated and has internal sensors that are accurate from -30°C to +60°C and up to 95% relative humidity.