• A vast improvement over the current AV Sensor, the new Hach Sigma AV Sensor was specifically developed to meet the demanding requirements of Collections Systems operators.
• This sensor provides accurate and reliable data with minimal maintenance and greater life expectancy than any other AV sensor on the market today!

Main Features & Benefits:

1. Single point calibration - zero cal. only. No need for water buckets for the new pressure transducer is accurately calibrated in the factory
2. Sensor Robustness. New Noryl outer shell protects probe
   from abrasion. Far more resilient than Encapsulated Epoxy.
3. Sensor Hydrodynamics. New streamlined design reduces flow disruption.
4. Minimal Sensor Fouling. For long term applications the new optional oil filled cover extends probe
   deployment.
5. Greater Directivity. Larger crystals for more reliable Doppler performance.