 
                  Specs at a glance
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                              Max. measurement errorVolume flow: ±0.5 % o.r. ± 2 mm/s (±0.5 % o.r. ± 0.08 in/s) 
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                              Measuring range9 dm³/min to 22500 m³/h (2.5 to 100000 gal/min) 
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                              Medium temperature rangeLiner material hard rubber: 0 to +70 °C (+32 to +158 °F) 
 Liner material polyurethane: –20 to +50 °C (–4 to +122 °F)
 Liner material PTFE: -20 to 70°C (–4 to +158 °F)
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                              Max. process pressurePN 40, Class 300, 20K 
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                              Wetted materialsLiner: polyurethane; PTFE; hard rubber 
 Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022)
Field of application
Promag W 800 is ideal for off-grid applications in the water industry, even flow measurement in direct underground installation or underwater. Promag 800 covers basic functionality, Promag 800 Advanced offers the full performance spectrum. The battery-powered transmitter provides worldwide transmission of measured data without additional energy supply. Heartbeat Technology enables measurement reliability and compliant verification.
- The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity 
- Dedicated to the measurement of industrial or municipal water and wastewater 
Device properties
- International drinking water approvals 
- Degree of protection IP68 (Type 6P enclosure) 
- Approved for custody transfer to MI-001/OIML R49 
- Transmitter housing made of durable polycarbonate 
- Battery lifetime up to 15 years 
- Measuring intervals can be adapted individually 
Benefits
- Long-lasting battery-powered magmeter with secure system integration and communication 
- With corrosion protection for underground installation or permanent underwater use 
- Flexible engineering – sensor with fixed or lap-joint process connections 
- Improved plant availability – sensor compliant with industry-specific requirements 
- Secure data storage and transmission – worldwide encrypted communication over the mobile network 
- Convenient commissioning and operation – device access via Bluetooth using intuitive SmartBlue app 
- Integrated verification – Heartbeat Technology 
Videos
Lean selection
- 
        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
 
                              - 
        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
- 
        Specialized products 
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
| 
 Fundamental selection Meet your basic measurement needs | Technical excellence | Simplicity | 
| 
 Lean selection Handle your core processes easily | Technical excellence | Simplicity | 
| 
 Extended selection Optimize your processes with innovative technologies | Technical excellence | Simplicity | 
| 
 Xpert selection Master your most challenging applications | Technical excellence | Simplicity Variable | 
Predecessor
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                                                    Technical Information (TI)
 TI Proline Promag W 800English version - 09/2025 Electromagnetic flowmeter EN 30/09/202529/02/202415/01/202203/05/2021Language: English Version: 30/09/2025 File size: 3.2 MB File name: TI01523DEN_0425-00.pdf 
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                                      - 
                                                    Operating Instruction (BA)
 BA Proline Promag W 800English version - 07/2025 Electromagnetic flowmeter Modbus RS485 EN 11/07/202529/02/202415/01/202203/05/2021Language: English Version: 11/07/2025 File size: 5 MB File name: BA02043DEN_0425-00.pdf 
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                        - 
                                                            Technical Information (TI)
 TI Proline Promag W 800Electromagnetic flowmeter EN 30/09/202529/02/202415/01/202203/05/2021Language: English Version: 30/09/2025 File size: 3.2 MB File name: TI01523DEN_0425-00.pdf 
- 
                                                            
- 
                        - 
                                                            Operating Instruction (BA)
 BA Proline Promag W 800Electromagnetic flowmeter 
 Modbus RS485EN 11/07/202529/02/202415/01/202203/05/2021Language: English Version: 11/07/2025 File size: 5 MB File name: BA02043DEN_0425-00.pdf 
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                        - 
                                                            Operating Instruction (BA)
 BA Proline Promag W 800Electromagnetic flowmeter 
 Cellular radio (Type: DA800C-CRM02.01) (型号: DA800C-CRM02.01)EN 11/07/202529/02/202415/01/202215/09/2021Language: English Version: 11/07/2025 File size: 4.1 MB File name: BA02080DEN_0425-00.pdf 
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                        - 
                                                            Operating Instruction (BA)
 BA Proline Promag W 800Electromagnetic flowmeter EN 11/07/202529/02/202415/01/202203/05/2021Language: English Version: 11/07/2025 File size: 4.3 MB File name: BA02081DEN_0425-00.pdf 
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                                                            Device Parameter (GP)
 Proline Promag 800Electromagnetic flowmeter 
 Cellular radioEN 15/09/2021Language: English Version: 15/09/2021 File size: 1.1 MB File name: GP01154DEN_0121.pdf 
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                        - 
                                                            Device Parameter (GP)
 Proline Promag 800Electromagnetic flowmeter EN 03/05/2021Language: English Version: 03/05/2021 File size: 968.1 KB File name: GP01155DEN_0121.pdf 
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                        - 
                                                            Device Parameter (GP)
 Proline Promag 800Electromagnetic flowmeter 
 Modbus RS485EN 03/05/2021Language: English Version: 03/05/2021 File size: 1.3 MB File name: GP01153DEN_0121.pdf 
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                                                            Short Instruction (KA)
 KA Proline 800with electromagnetic sensor 
 Modbus RS485EN 29/02/202415/01/202203/05/2021Language: English Version: 29/02/2024 File size: 3.1 MB File name: KA01494DEN_0324-00.pdf 
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                        - 
                                                            Short Instruction (KA)
 KA Proline 800with electromagnetic sensor 
 Cellular modem (Type: DA800C-CRM02.01) (型号: DA800C-CRM02.01)EN 29/02/202415/01/202215/09/2021Language: English Version: 29/02/2024 File size: 2.2 MB File name: KA01495DEN_0324-00.pdf 
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                        - 
                                                            Short Instruction (KA)
 KA Proline 800with electromagnetic sensor EN 29/02/202415/01/202203/05/2021Language: English Version: 29/02/2024 File size: 2.5 MB File name: KA01496DEN_0324-00.pdf 
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