A/B double bucket configuration: A/B double bucket configured, which can realize mixed sample collection, instrument sample supply and sample retention;
Active/passive working mode: The product can be used as the main control equipment to control the analyzer and other equipment when it is integrated into the analysis system, and can execute the sampling task according to the control instructions of the data acquisition and transmission equipment to facilitate the system integration. 
Equal proportional mixed sampling function: It can carry out mixed sampling according to equal time interval or equal flow interval, and the interval time, flow and sampling quantity can be set flexibly. 
Multiple instrument sample supply modes: It supports active sample supply (with pressure) and passive sample supply (without pressure) mode. 
Access control function (optional): It is provided with the function of card access control to effectively prevent unauthorized personnel from interfering with the operation of the equipment.
Voice prompt function (optional): Voice prompt is available for important operations. 
It has a manual comparison sampling port for composite water samples.
Automatic preservative adding (optional): It can support automatic addition of preservatives from three different lines to ensure representativeness of samples. 
The real time network communication interfaces RS232 and RS485 implement remote sampling setting, execution and response functions.
It has the function of power-off protection, so data loss is avoided. 
The sampling bottle chamber has large volume, with temperature constant at 4±2℃ all year round.
The sampling structure has compact design, and the pipeline has back flushing design without residual wastewater, thus ensuring that the sample is free of pollution and authentic. 
It has separate water and electrical parts, with the control part completely separated from the mechanical water intake part, so it has good safety and stability.