S415 OEM

S415 OEM Compact Flow Sensor for Compressed Air and Nitrogen (Inline)

Compact and easy to install flow sensor for monitoring compressed air flow and consumption.

Right Mark

Compact design for point-of-use OEM applications

Right Mark

Affordable flow sensor with flexible installation

Right Mark

No straight pipe section required due to flow conditioner

Right Mark

Smartphone App for remote configuration and online values

Right Mark

Economic flow and consumption metering at low investments

Right Mark

Integrated display for on-site values

Right Mark

Isolated 4... 20 mA & Pulse; Modbus/RTU; M-Bus

Right Mark

G inner thread connection - DN8, DN15, DN20, DN25 or DN32

The compact S415 OEM Compact Flow Sensor is an affordable compressed air flow and consumption measurement solution. The S415 OEM can be installed directly at the point of use where accurate compressed air and nitrogen flow measurement is required. It is designed to be seamlessly integrated into OEM compressed air or nitrogen applications.

Low-Cost Monitoring for OEM Application

The S415 OEM will help you improve the compressed air efficiency in any OEM application, by helping to reduce operating costs and finding optimization potentials. The S415 OEM is best suited to general process work where low-cost and broad monitoring of the compressed air flow is required.

Flexible Installation

With its compact design, the S415 OEM can be easily installed into almost any OEM Application, where machine and process monitoring are needed. Equipped with inner G-thread connections ranging from DN8 (1⁄4”) over DN15 (1⁄2”), DN20 (3⁄4”), DN25 (1”) up to DN32 (1,25”). Making it suited for most typical connection sizes at the point of use.

Integrated Flow Conditioner

The advanced flow conditioner eliminates the requirement of straight inlet piping. The innovative mechanical design reduces the pressure loss to a minimum (<30 hPa), while offering highly accurate measurements in difficult pipe designs.

Wireless Communication Interface

The S415 OEM comes standard with wireless communication interface to help the user quickly and easily check the flow meter readings or adjust the settings via the SUTO flow meter app S4C-FS.

Various Sensor Outputs

The S415 OEM Flow Sensor comes with various sensor outputs, such as 4 … 20 mA, Modbus RTU, M-Bus. With the Modbus/ RTU interface, the S415 can be easily daisy-chained to a Modbus Master device such as our S331 by using an RS-485 splitter (A554 3310) and the M8 to M12 converter cable (A553 0161). Through this method, you can add up to 16 flow meters to the master device.

If there are any special requests, such as custom flow ranges or different gas types, please contact us here.

The S415 OEM flow sensor measures the air and gas consumption directly at the point of use. Thanks to the compact size, it can fit in any application.


Accuracy3 % o.RDG ±0.3 % FS
Selectable unitsl/min, cfm, kg/h, m3/h
Measuring rangesee table below
Repeatability1 % o.RDG
SensorThermal mass flow sensor
Sampling rate3/sec
Turndown ratio50:1
Response time (t90)2 sec
Selectable unitsm³, ft³, l, kg
Reference conditions
Selectable conditions20 °C 1000 mbar (ISO1217)
0 °C 1013 mbar (DIN1343)
freely adjustable


Analog output
Signal4 ... 20 mA, isolated
Scaling0 ... max flow
Update rate3/sec
Pulse output
SignalMax 30 V, 200 mA
Scaling1 pulse per consumption unit
Voltage supply15 ... 30 VDC
Current consumption120 mA @ 24 VDC


WirelessS4C-FS App for mobile phones
Integrated4 digit LED
Process connectionAluminum alloy
HousingPC + ABS
SensorGlass coated resistive sensor
Metal partsAluminum alloy
Electrical connection2 x M8 (4 pole)
Protection classIP54
ApprovalsCE, RoHS, FCC
Process connectionG-thread
Weight0.45 ... 1.3 kg (depends on model)
Operating conditions
MediumAir, N2
Medium qualityISO 8573: 4.4.3 or better
Medium temperature0 ... 50 °C
Medium humidity< 90 % rH, no condensation
Operating pressure0 ... 10 bar(g)
Ambient temperature0 ... 50 °C
Ambient humidity< 95 % rH
Storage temperature-30 ... 70 °C
Transport temperature-30 ... 70 °C
Pipe sizesDN8, DN15, DN20, DN25, DN32


Process connectionDN8DN15DN20DN25DN32
Standard range (S)2501000200035006000
Low range (L)502004007001200
Stated measuring ranges for S415 OEM under following conditions:
Standard flow in air in l/min
Reference pressure: 1000 mbar
Reference Temperature: +20 °C

S415 OEM

S415 OEM
Successfully Copied

S415 OEM

S415 OEM
Successfully Copied

S401/ S402/ S415/ S418/ S418-V/ S421/ S430/ S450/ S452/ S460 /S461 /S462 – CE & UKCA DECLARATION OF CONFORMITY

S401/ S402/ S415/ S418/ S418-V/ S421/ S430/ S450/ S452/ S460 /S461 /S462 – CE & UKCA DECLARATION OF CONFORMITY
Successfully Copied

S415 Firmware: V2.9

S415 Firmware: V2.9


Personal advice

Would you like to receive more information about products and applications?
Or do you need personal advice? We’re here to help!