Sensors Sensors

Grundfos Direct Sensors™ (Solar/DHW)

Manuals available:
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direct communication via RESOL VBus®

VFS 1-12 l Grundfos Direct Sensors™ (Solar/DHW)
Analogue sensor incl. fitting, insert and connection cable
Article-no: 130 000 20 | Price bracket B 92,00 €   Add to wish list

VFS 2-40 l Grundfos Direct Sensor™
Analogue sensor incl. fitting, insert and connection cable (Solar/DHW)
Article-no: 130 000 30 | Price bracket B 94,00 €   Add to wish list

RPS 0-10 bar Grundfos Direct Sensor™
Analogue sensor incl. fitting and connection cable (Solar/DHW)
Article-no: 130 000 40 | Price bracket B 38,00 €   Add to wish list

VFD 1-12 l Grundfos Direct Sensor™ (Suitable for the DeltaSol® AL E HE, DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting, insert and connection cable (Solar/DHW)
Article-no: 130 000 80 | Price bracket B 92,00 €   Add to wish list

RPD 0-10 bar Grundfos Direct Sensor™ (Suitable for the DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting and connection cable (Solar/DHW)
Article-no: 130 000 90 | Price bracket B 38,00 €   Add to wish list

VFD 2-40 l Grundfos Direct Sensor™ (Suitable for the DeltaSol® AL E HE, DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting, insert and connection cable (Solar/DHW)
Article-no: 130 001 00 | Price bracket B 94,00 €   Add to wish list

VFS 1-12 l Grundfos Direct Sensor™
Analogue sensor incl. fitting, insert and connection cable (Heating)
Article-no: 130 002 00 | Price bracket B 92,00 €   Add to wish list

VFS 2-40 l Grundfos Direct Sensor™
Analogue sensor incl. fitting, insert and connection cable (Heating)
Article-no: 130 002 10 | Price bracket B 94,00 €   Add to wish list

RPS 0-10 bar Grundfos Direct Sensor™
Analogue sensor incl. fitting and connection cable (Heating)
Article-no: 130 002 20 | Price bracket B 38,00 €   Add to wish list

VFD 1-12 l Grundfos Direct Sensor™ (Suitable for the DeltaSol® AL E HE, DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting, insert and connection cable (Heating)
Article-no: 130 002 30 | Price bracket B 92,00 €   Add to wish list

VFD 2-40 l Grundfos Direct Sensor™ (Suitable for the DeltaSol® AL E HE, DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting, insert and connection cable (Heating)
Article-no: 130 002 40 | Price bracket B 94,00 €   Add to wish list

RPD 0-10 bar Grundfos Direct Sensor™ (Suitable for the DeltaSol® MX, BX Plus, CS series and DeltaTherm® HC only)
Digital sensor incl. fitting and connection cable (Heating)
Article-no: 130 002 50 | Price bracket B 38,00 €   Add to wish list

Grundfos Direct Sensor™ connection cable
Connection cable 0.4 m
Article-no: 280 040 40 | Price bracket B 5,10 €   Add to wish list

Grundfos Direct Sensor™ connection cable
Connection cable 0.65 m
Article-no: 280 040 66 | Price bracket B 5,50 €   Add to wish list



VFS Grundfos Direct Sensors™ measure the temperature and the flow rate with a single measuring element. Based on the vortex principle, the sensor measures the flow rate by means of the pressure differences caused by the fluid turbulences occurring at the insert. Grundfos Direct Sensors™ can be used in aggressive media as well as in domestic water and thus are ideal for measuring the flow rate and the heat quantity in solar thermal and heating systems.

The digital VFD Grundfos Direct Sensors™ measure the temperature and the flow rate with a single measuring element and then transmit the measured values directly via the RESOL VBus® protocol. Grundfos Direct Sensors™ can be used in aggressive media as well as in domestic water and thus are ideal for measuring the flow rate and the heat quantity in solar thermal and heating systems. VFD 1 - 12 l are designed for systems with low flow rates. VFD 2 - 40 l are designed for systems with higher flow rates. The VFD 2 - 40 l fast is ideal for DHW exchange modules due to its high-speed reaction time.

RPS Grundfos Direct Sensors™ measure the temperature and the relative pressure with a single measuring element. They can be optimally used for leakage and overpressure monitoring. Grundfos Direct Sensors™ can be used in aggressive media as well as in domestic water and thus are ideal for the application in solar thermal and heating systems.

The digital RPD Grundfos Direct Sensors™ measure the temperature and the relative pressure with a single measuring element and then transmit the measured values directly via the RESOL VBus® protocol. They can be optimally used for leakage and overpressure monitoring. Grundfos Direct Sensors™ can be used in aggressive media as well as in domestic water and thus are ideal for the application in solar thermal and heating systems.

Material: stainless steel
Maximum operation temperature:
Long-term: 100 °C
Short-term: 120 °C
Length: 110 mm (VFS/VFD)
Connection thread: 3/4" ET (VFS/VFD), 1/2" ET (RPS/RPD)
Depth of thread engagement: 12 mm (RPS/RPD)

Product photos

Grundfos Direct Sensor (3124 kB)
Grundfos Direct Sensor (2090 kB)

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A connection cable (3 m) with JST plug is included with each sensor.
The cTuVUS certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-2-9 and CSA - E60730-2-9-01 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.