S415 OEM

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

Affordable, compact OEM flow sensor for monitoring compressed air flow and consumption.

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Compact design for point-of-use OEM applications

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Affordable flow sensor with flexible installation

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No straight pipe section required due to flow conditioner

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Smartphone App for remote configuration and online values

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Economic flow and consumption metering at low investments

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Integrated display for on-site values

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

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

The S415 OEM Compact Flow Sensor offers affordable compressed air flow and consumption measurement solutions, ideal for OEM applications. Its compact design allows for easy integration directly at the point of use, with flexible installation options and inner G-thread connections ranging from DN8 (1⁄4”) to DN32 (1,25”). Featuring an integrated flow conditioner for accurate measurements in challenging pipe designs and wireless communication interface for convenient monitoring via the SUTO flow meter app S4C-FS. With various sensor outputs including 4 … 20 mA, Modbus RTU, and M-Bus, the S415 OEM provides versatility and efficiency for process optimization.

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
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S415 OEM

Info sheets
S415 OEM
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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
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S415 Firmware: V2.9

S415 Firmware: V2.9

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