
HM Digital (FLM-3) Filter Monitor with Flow Sensor and Volumizer
HM Digital FLM-3 Filter Monitor with Flow Sensor and Volumizer
The HM Digital FLM-3 gives you visibility into exactly how much water has passed through your reverse osmosis or deionization system. Mount it under the sink or on the countertop to track flow rates in real time and set custom alarms when your filter reaches its rated capacity.
Three Core Functions for Filter Maintenance
Flow Rate Tracking
The FLM-3 measures water flow in real time, displaying either liters per minute or gallons per minute on the large LCD screen. Ideal for verifying your system is operating at the correct flow rate for optimal filtration performance.
Total Volume Used
Cumulative tracking shows total liters or gallons filtered since installation or last reset. Use this data to schedule filter changes based on actual usage rather than guesswork or calendar dates.
Programmable Alarm
Set a custom volume threshold based on your filter's rated capacity. When total usage exceeds your programmed limit, the FLM-3 alerts you to replace the filter or membrane before water quality degrades.
Works With RO and DI Systems
The FLM-3 installs inline on any reverse osmosis or deionization system using standard tubing connections. The compact design fits under most sinks, and the clear LCD is readable in low-light environments. Compatible with both residential and light commercial filtration applications where flow monitoring improves maintenance scheduling and system longevity.
HM Digital FLM-3 Filter Monitor with Flow Sensor and Volumizer
The HM Digital FLM-3 gives you visibility into exactly how much water has passed through your reverse osmosis or deionization system. Mount it under the sink or on the countertop to track flow rates in real time and set custom alarms when your filter reaches its rated capacity.
Three Core Functions for Filter Maintenance
Flow Rate Tracking
The FLM-3 measures water flow in real time, displaying either liters per minute or gallons per minute on the large LCD screen. Ideal for verifying your system is operating at the correct flow rate for optimal filtration performance.
Total Volume Used
Cumulative tracking shows total liters or gallons filtered since installation or last reset. Use this data to schedule filter changes based on actual usage rather than guesswork or calendar dates.
Programmable Alarm
Set a custom volume threshold based on your filter's rated capacity. When total usage exceeds your programmed limit, the FLM-3 alerts you to replace the filter or membrane before water quality degrades.
Works With RO and DI Systems
The FLM-3 installs inline on any reverse osmosis or deionization system using standard tubing connections. The compact design fits under most sinks, and the clear LCD is readable in low-light environments. Compatible with both residential and light commercial filtration applications where flow monitoring improves maintenance scheduling and system longevity.
Original: $73.36
-65%$73.36
$25.68Description
HM Digital FLM-3 Filter Monitor with Flow Sensor and Volumizer
The HM Digital FLM-3 gives you visibility into exactly how much water has passed through your reverse osmosis or deionization system. Mount it under the sink or on the countertop to track flow rates in real time and set custom alarms when your filter reaches its rated capacity.
Three Core Functions for Filter Maintenance
Flow Rate Tracking
The FLM-3 measures water flow in real time, displaying either liters per minute or gallons per minute on the large LCD screen. Ideal for verifying your system is operating at the correct flow rate for optimal filtration performance.
Total Volume Used
Cumulative tracking shows total liters or gallons filtered since installation or last reset. Use this data to schedule filter changes based on actual usage rather than guesswork or calendar dates.
Programmable Alarm
Set a custom volume threshold based on your filter's rated capacity. When total usage exceeds your programmed limit, the FLM-3 alerts you to replace the filter or membrane before water quality degrades.
Works With RO and DI Systems
The FLM-3 installs inline on any reverse osmosis or deionization system using standard tubing connections. The compact design fits under most sinks, and the clear LCD is readable in low-light environments. Compatible with both residential and light commercial filtration applications where flow monitoring improves maintenance scheduling and system longevity.











