Hach Solitax sc Turbidity Sensor
The Hach Solitax sc is positioned as the go-to turbidity sensor for continuous wastewater monitoring thanks to its robust optical measurement, low maintenance design, and cost-efficient lifecycle for high-frequency sampling. For waste monitoring use cases it outperforms many level-focused devices on this list by directly quantifying suspended solids and turbidity trends at a lower capital and upkeep cost than radar or ultrasonic solutions, making it an economical choice for treatment process control and regulatory compliance.
Accurate turbidity
Low maintenance
Accurate turbidity
Low maintenance
Review Summary
"Long-term users praise its stable, laboratory-grade turbidity readings, reliable integration with control systems and robust construction; some report periodic fouling and occasional calibration drift in high-solids applications that increase maintenance needs."
Murk whisperer
Accurate turbidity and suspended-solids measurement optimized for wastewater monitoring
Murk whisperer
Accurate turbidity and suspended-solids measurement optimized for wastewater monitoring
Eco-Friendly Living
Time-Saving Convenience
The Hach Solitax sc is positioned as the go-to turbidity sensor for continuous wastewater monitoring thanks to its robust optical measurement, low maintenance design, and cost-efficient lifecycle for high-frequency sampling. For waste monitoring use cases it outperforms many level-focused devices on this list by directly quantifying suspended solids and turbidity trends at a lower capital and upkeep cost than radar or ultrasonic solutions, making it an economical choice for treatment process control and regulatory compliance.
Accurate turbidity
Low maintenance
Murk whisperer
Accurate turbidity and suspended-solids measurement optimized for wastewater monitoring
Optical sensing with anti-fouling design and optional automatic cleaning for low maintenance
Accurate turbidity
Low maintenance
Murk whisperer
Accurate turbidity and suspended-solids measurement optimized for wastewater monitoring
Optical sensing with anti-fouling design and optional automatic cleaning for low maintenance
$2,000-4,500 CAD
Endress+Hauser Prosonic FMU30 Ultrasonic Level Sensor
The Endress+Hauser Prosonic FMU30 is a market-leading ultrasonic level sensor valued for reliable, economical non-contact level measurement in tanks and open channels common to wastewater systems. It offers a lower-cost alternative to radar sensors like the VEGAPULS 6X while providing dependable performance over long ranges; compared with flow-specific devices such as the Greyline AVFM, it delivers simple, low-maintenance level data that integrates easily into SCADA for budget-conscious sites.
Non-contact measurement
Long-range sensing
Non-contact measurement
Long-range sensing
Review Summary
"Operators value its long-term stability, strong echo detection and straightforward commissioning, delivering reliable ultrasonic level measurement over time; a few note sensitivity to heavy foam or complex tank geometries and comment on the premium price."
Echo maestro
Non-contact ultrasonic level measurement for open channels, tanks, and wastewater applications
Echo maestro
Non-contact ultrasonic level measurement for open channels, tanks, and wastewater applications
Eco-Friendly Living
Time-Saving Convenience
The Endress+Hauser Prosonic FMU30 is a market-leading ultrasonic level sensor valued for reliable, economical non-contact level measurement in tanks and open channels common to wastewater systems. It offers a lower-cost alternative to radar sensors like the VEGAPULS 6X while providing dependable performance over long ranges; compared with flow-specific devices such as the Greyline AVFM, it delivers simple, low-maintenance level data that integrates easily into SCADA for budget-conscious sites.
Non-contact measurement
Long-range sensing
Echo maestro
Non-contact ultrasonic level measurement for open channels, tanks, and wastewater applications
Robust echo processing for reliable readings in noisy/foamy conditions and long ranges
Non-contact measurement
Long-range sensing
Echo maestro
Non-contact ultrasonic level measurement for open channels, tanks, and wastewater applications
Robust echo processing for reliable readings in noisy/foamy conditions and long ranges
$2,000-5,000 CAD
VEGAPULS 6X Radar Level Sensor
The VEGAPULS 6X is best-in-class for radar level measurement in demanding waste monitoring environments, delivering high accuracy and immunity to foam, dust, and gas layers that can compromise ultrasonic or optical probes. Although it carries a higher upfront cost than ultrasonic and turbidity-only options, its superior stability and minimal routine maintenance reduce total cost of ownership in harsher applications, making it the preferred choice where consistent level measurement is critical and failure of simpler sensors would be costly.
High precision
Vapor-tamer
High precision
Vapor-tamer
Review Summary
"Users consistently report exceptional long-term reliability and stable 80 GHz radar performance in vapors, dust and changing process conditions, with minimal maintenance; the main drawbacks cited are the higher initial cost and setup complexity for inexperienced technicians."
Stormproof performance
High-frequency radar (narrow beam) delivers precise level measurements in harsh waste environments
Stormproof performance
High-frequency radar (narrow beam) delivers precise level measurements in harsh waste environments
Eco-Friendly Living
Time-Saving Convenience
Skill Development & Mastery
The VEGAPULS 6X is best-in-class for radar level measurement in demanding waste monitoring environments, delivering high accuracy and immunity to foam, dust, and gas layers that can compromise ultrasonic or optical probes. Although it carries a higher upfront cost than ultrasonic and turbidity-only options, its superior stability and minimal routine maintenance reduce total cost of ownership in harsher applications, making it the preferred choice where consistent level measurement is critical and failure of simpler sensors would be costly.
High precision
Vapor-tamer
Stormproof performance
High-frequency radar (narrow beam) delivers precise level measurements in harsh waste environments
Unaffected by dust, vapor, or light foam, suitable for liquids and some solids
High precision
Vapor-tamer
Stormproof performance
High-frequency radar (narrow beam) delivers precise level measurements in harsh waste environments
Unaffected by dust, vapor, or light foam, suitable for liquids and some solids
$3,000-7,000 CAD
Greyline AVFM 6.1 Area Velocity Flow Meter
The Greyline AVFM 6.1 stands out as a practical market leader for direct flow measurement in open channels and sewers by combining level and velocity sensing into a single, relatively low-cost instrument designed for wastewater networks. Unlike single-parameter level or turbidity sensors on this list, the AVFM delivers volumetric flow rates without installing flumes or weirs, providing operators clearer process control and billing data while offering a more affordable alternative to full channel restructuring or complex flow metering systems.
Accurate flow
Simple retrofit
Accurate flow
Simple retrofit
Review Summary
"Field operators appreciate the non-contact area-velocity approach and ease of installation for ongoing open-channel monitoring, but accuracy can be affected by debris, changing channel profiles or poor site setup, and some mention occasional software/firmware quirks."
River whisperer
Area-velocity measurement ideal for open channels and partially filled pipes in sewage systems
River whisperer
Area-velocity measurement ideal for open channels and partially filled pipes in sewage systems
Eco-Friendly Living
Time-Saving Convenience
The Greyline AVFM 6.1 stands out as a practical market leader for direct flow measurement in open channels and sewers by combining level and velocity sensing into a single, relatively low-cost instrument designed for wastewater networks. Unlike single-parameter level or turbidity sensors on this list, the AVFM delivers volumetric flow rates without installing flumes or weirs, providing operators clearer process control and billing data while offering a more affordable alternative to full channel restructuring or complex flow metering systems.
Accurate flow
Simple retrofit
River whisperer
Area-velocity measurement ideal for open channels and partially filled pipes in sewage systems
Combines velocity sensing and level measurement for reliable volumetric flow without full-pipe insertion
Accurate flow
Simple retrofit
River whisperer
Area-velocity measurement ideal for open channels and partially filled pipes in sewage systems
Combines velocity sensing and level measurement for reliable volumetric flow without full-pipe insertion
$2,500-6,000 CAD
Markland 502P Sludge Gun Portable Density Meter
The Markland 502P Sludge Gun is a portable density meter tailored for spot checks of sludge and biosolids, delivering rapid solids concentration readings that complement continuous sensors by validating process samples and tuning dewatering operations. It is a low-capex, field-hardy tool compared with fixed density monitors and mass-flow instrumentation, providing wastewater operators an affordable, mobile way to optimize thickening and disposal costs without the commitment of permanent installations.
Instant density
Handheld portability
Instant density
Handheld portability
Review Summary
"Long-term users find the Markland 502P rugged, portable and fast for on-site sludge density measurements with good repeatability; common complaints are frequent cleaning, recalibration needs and sensitivity to sampling technique."
Muck detective
Handheld portable density meter for rapid in-field sludge and slurry percent-solids/density readings
Muck detective
Handheld portable density meter for rapid in-field sludge and slurry percent-solids/density readings
Eco-Friendly Living
Time-Saving Convenience
Skill Development & Mastery
The Markland 502P Sludge Gun is a portable density meter tailored for spot checks of sludge and biosolids, delivering rapid solids concentration readings that complement continuous sensors by validating process samples and tuning dewatering operations. It is a low-capex, field-hardy tool compared with fixed density monitors and mass-flow instrumentation, providing wastewater operators an affordable, mobile way to optimize thickening and disposal costs without the commitment of permanent installations.
Instant density
Handheld portability
Muck detective
Handheld portable density meter for rapid in-field sludge and slurry percent-solids/density readings
Rugged, battery-powered design with temperature compensation and easy on-site calibration
Instant density
Handheld portability
Muck detective
Handheld portable density meter for rapid in-field sludge and slurry percent-solids/density readings
Rugged, battery-powered design with temperature compensation and easy on-site calibration
$3,000-6,500 CAD