Water meters accurately measure the rate and quantity of water being taken. It helps consent holders meet conditions and gives a valuable insight into how and when water is being used—helping improve efficiency on the farm or orchard.
Meters must be:
- Verified in place as accurate to within ±5%
- Sealed and tamper-proof
- Suitable for your water quality and take volume
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And must be:
Capable of producing data in a format suitable for electronic reporting.
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When choosing a meter, consider:
- Flow range and pressure
- Power source (solar/battery)
- Installation space and access
- Maintenance needs
- Cost
Specification |
Electromagnetic |
Ultrasonic |
Mechanical |
Accuracy |
±0.15%–2% |
Better than ±2% |
±2–5% |
Reliability |
Very high |
High |
Medium |
Lifespan |
20 years |
15 years |
4 years |
Power required |
Yes (or solar/battery) |
Yes (or solar/battery) |
No |
Suitable for silt/weedy water |
Yes |
Yes |
No |
Cost |
Medium |
Low |
Low |
Always ensure your meter complies with your consent conditions. For more information, talk to a water meter supplier. The Irrigation NZ website provides information on 'Blue Tick' approved water contractors.