The MPV100 Series Multi - Parameter Validation Recorder is an expandable continuous validation system. It can check the key parameters of a compliant environment, including: gaseous hydrogen peroxide concentration, relative saturation, carbon dioxide concentration, temperature and humidity. This product can support connecting up to 8 sensor probes for single - point or multi - point environmental parameter validation. The data will be stored in real - time and the validation results can be printed online via a Bluetooth thermal printer. The audit trail version of the product can also support multi - user and permission management and has an audit trail function.