Core Advantages

All-Year Round Constant Temperature Preservation

Built-in compressor refrigeration system + low-temperature heating module. Real-time temperature monitoring, over-temperature alarm, automatic cooling/heating switching. Keep composite water samples stable at 4±2℃ to comply with global environmental testing standards, avoid sample deterioration in high summer or freezing in cold winter.

6 Professional Sampling Modes to Meet All Monitoring Need

Schedule Timed Sampling (Max 24 preset time points weekly)
Time Proportional Sampling
Flow Proportional Sampling (Match external flowmeter 4-20mA signal)
Liquid Level Proportional Sampling
Rainfall Trigger Sampling (Support external rain gauge connection)
Manual Instant Sampling
All sampling volume, intervals, mixing times are freely programmable with ±5% high sampling accuracy.

Anti-Contamination Pipeline Self-Cleaning System

Automatic pipeline flushing before each sampling (customizable rinse duration)
Auto drain residual water pre & post sampling to prevent sediment clogging
Sampling head with filter screen to block large impurities
Double pump design (circulation pump + sampling pump) to guarantee representative water samples without cross-contamination

Flexible Triple Power Supply Design

AC 110V/220V mains power (50/60Hz)
DC12V wired power supply
Car cigarette lighter DC12V power 
Perfect for fixed station, vehicle-mounted mobile patrol and remote off-grid field sites.

Rugged IP55 Outdoor Industrial Grade

Full sealed anti-dust & anti-splash cabinet, withstand harsh rain, dust and temperature fluctuation
Heavy-duty portable frame; WS-9250 fitted with silent rolling wheels & handrail for easy transport
Password lock function to prevent unauthorized parameter modification
Pump tube service life reminder, component manual test function for easy maintenance

Product Paramenters