Key Features

– Ultrasonic technology for precise heat flow measurement, data's spot-on
– RS485 Modbus communication for data transfer & remote monitoring, check info from afar easily
– Supports integration with central heating/cooling management systems, fits your setup
– Highly accurate, compliant with EN1434-2 standards, meets pro requirements
– Tamper-proof and maintenance-free design, no damage or upkeep hassle
– Built-in data logging and reporting capabilities, track/analyze conveniently
– Wide temperature range: -25°C to 90°C, works in cold or warm conditions
– IP68 protection for reliable operation in harsh environments, stays steady

Applications

– Residential and commercial heating systems, great for homes/businesses
– District heating systems, perfect for community-level supply
– Energy billing and cost distribution, fair for cost sharing
– HVAC systems and temperature control, fits heating/ventilation setups
– Renewable energy heating systems, works with eco-friendly solutions

Function and Supply conditions

Parameter	Specification
Measurement Principle	Ultrasonic Transit-Time Technology
Flow Range	0.01–12 m/s
Power Supply	DC 12V or AC (depending on model)
Water Temperature	Cold: 0.1°C–50°C, Hot: ≤90°C
Protection Class	IP68
Communication Protocol	RS485 Modbus
Signal Output	RS485 / Pulse / Modbus (depending on model)
Installation	Horizontal / Vertical
Pressure	≤1.6 MPa

Performance characteristics

Feature	Description
Accuracy	±1.0% of reading
Repeatability	±0.2%
Response Time	1–3 seconds
Flow Velocity Range	0.01 – 12 m/s
Data Logging	Built-in memory or external (optional)
Pipe Material	Steel, copper, PVC, ductile iron, etc.

Technical data sheet

Size	DN15	DN20	DN25	DN32	DN40
Flow Range (m³/h)	0.3–3	0.5–5	0.7–7	1.1–11	1.5–15
Working Pressure	≤1.6 MPa	Working Pressure	≤1.6 MPa	Working Pressure	≤1.6 MPa
Accuracy	±1%	Accuracy	±1%	Accuracy	±1%
Output	4–20mA / RS485 / Pulse	4–20mA / RS485 / Pulse	4–20mA / RS485 / Pulse	4–20mA / RS485 / Pulse	4–20mA / RS485 / Pulse
Temperature	-30°C to 160°C	-30°C to 160°C	-30°C to 160°C	-30°C to 160°C	-30°C to 160°C

Parameters

Size	DN15	DN20	DN25	DN32	DN40
Min Flow	0.3	0.5	0.7	1.1	1.5
Max Flow	3.0	5.0	7.0	11.0	15.0
Pipe Material	Steel / PVC / Copper / Others	Steel / PVC / Copper / Others	Steel / PVC / Copper / Others	Steel / PVC / Copper / Others	Steel / PVC / Copper / Others
Installation Type	Inline / Insertion / Clamp-on	Inline / Insertion / Clamp-on	Inline / Insertion / Clamp-on	Inline / Insertion / Clamp-on	Inline / Insertion / Clamp-on
Signal Output	RS485 / 4–20mA / Pulse	RS485 / 4–20mA / Pulse	RS485 / 4–20mA / Pulse	RS485 / 4–20mA / Pulse	RS485 / 4–20mA / Pulse