Specifications include, but are not limited to:. Part number: FP-25BT-FP-25 portable flow calibrator for particulate air samplers, 0-25 SLPM?LPM with backlit monochromelcd display and Bluetooth. Includes two 1/14" downtube adapters, a 14/" BARB adapter with silicone tubing, USB cable and wall adapter for charging the internal battery and weatherproof hard case. NIST-Traceable flow calibration. . Part Number: MWB-500SCCM-D Whisper-series portable mass flow meter(fully charged), display, battery MWD-500SCCM-D, TOTAVG-Body and sensor engineered for 0-500 SLPM full scale; Backlit monchromelcd screen; multivariate measurements include: mass flow, volumetric flow, absolute pressure, and temperature gas selection initially set to air; 98 selectable gases; 9 pin mini-din electrical connector; composter firmware allows user customizable gas presets; RS-232 data communication; micro-USB connector for battery charging (wall charger included) primary enable on screen and RS-232; power requirements: 7-30VDC, 40 MA: M5 (10-32 UNF) process connections (comes with 10-32 to 1/8" female NPT process connection); approx. Pressure drop at default body full scale (assuming air, venting to atmosphere): 0.07PSI ; accuracy specification: (0.2% of full scale + 0.8% of reading) 200:1 turndownratio; NIST traceable calibration certificate cables, filters and case sold separately.