Reliable hot water supply in residential settings by ensuring the water heater responds quickly to demand and operates efficiently NR tankless heater compatibility: designed specifically for NR models to deliver accurate flow sensing and optimize heating performance Durable construction: built to withstand regular use with stable readings over varying water conditions Easy installation: standard size and fittings match NR models, making replacement straightforward for homeowners or technicians Practical and precise: a reliable replaceable component that maintains accurate flow measurement and protects the heating system Use scenarios: Routine maintenance: worn flow sensor on an NR unit to restore accurate flow readings Variable demand households: ensures steady hot water when multiple outlets run simultaneously Field service: technicians the sensor during tankless heater service to minimize downtime