SKC Product Code: 717-530M Bios Defender Model 530M (soapless) electronic Primary Standard Calibrator with lead-acid battery, 100-240V charger with multi-plug, Optimizer Collect Light Software, and 1-meter serial cable. Includes automatic temperature and pressure sensors for standardized calibration readings. Flow range: 50-5,000 ml/min. Software requires Windows XP (sp 2 or 3) or Windows Vista (32-bit version) and an available RS-232 port or USB to RS-232 adapter. The Defender is built on next-generation DryCal technology. Volumetric accuracy is 1.2%of reading