Calorimeters & Sensors
Measure accurately with RESOL and optional Grundfos Direct Sensors™.
Solar Hot Water sensors at operating temperatures (68 ... 176 °F) must measure as accurately as possible in order to ensure that any measurement error of sensors and controller does not exceed 3.6 or 5.4 °Ra.
How RESOL Sensors Work: The sensors contain a material that changes its electrical resistance in proportion to the temperature change. The controller measures the resistance and calculates the temperature of the sensor element.
For Example: Pt1000 is a platinum (Pt) sensor with a resistance of 1000 Ω at 32 °F.
How to Choose the right Sensor: Three different sensor types are available: immersion (well) sensors, clip-on and bolt-on sensors. For each sensor product, options are available for diameter (Dim, L1, L2), Cable Material (Silicone, PVC, Pur) and Temperature Range.
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RESOL WMZ Universal Calorimeter
Out of stock
A universal calorimeter module for solar and heating systems. Includes graphic display of flow and return temperatures, heat quantity, output, flow rate and sensor faults. Compatible with RESOL DeltaSol ES, E, M, MX, and BX Heating Controllers.
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WMZ-G1 Calorimeter (with Grundfos Direct Sensors)
The WMZ-G1 is a measurement and display unit for solar thermal systems and conventional heating systems.
It is possible to connect up to two Grundfos Direct Sensors™, which measure the temperature as well as one additional value – depending on the type: flow rate, relative or differential pressure.
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Grundfos Direct Sensor™ VFS 2-40l
Grundfos™ sensor incl. brass fitting, insert and connection cable.
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Grundfos Direct Sensor™ RPS 0-10 bar
Out of stock
Grundfos™ Direct Sensor RPS 0-10 bar, including brass fitting and connection cable.
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Grundfos Direct Sensor™ VFS 1-12l
Grundfos™ sensor incl. brass fitting, insert and connection cable.
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Outdoor Temperature Sensor
The FAP13 Outdoor Temperature Sensor is used for measuring the outdoor temperature with a platinum measuring element.
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Indoor Temperature Sensor
RESOL FRP11 Indoor Temperature Sensor. Made for installation on planar surfaces. Version Pt1000
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RESOL SP10 Overvoltage Protection
Overvoltage protection device placed in housing with outstanding design, suitable for mounting outdoors. We generally recommend installing the overvoltage protection in order to avoid overvoltage damage at collector sensors, e.g. caused by local lightning storms.
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RESOL Temperature Sensors
Learn MoreSolar Hot Water Controller Sensors made for installation into Sensor Wells. Available in the dimension, cable material and temperature range of your choice.
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RESOL Cylindrical Clip-On Sensors
Solar Hot Water Controller Sensors for surface mounting on tubes, including pipe clamp. Pt1000 version. Available in the dimension, cable material and temperature range of your choice.
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