Complaint
| Specification model | DN-15 | DN-20 | DN-25 |
| Nominal flow rate (m³/h) | 2.5 | 4.0 | 6.3 |
| Maximum flow rate (m³/h) | 3.1 | 5.0 | 7.8 |
| Demarcation flow | 0.12 m³/h | 0.2 m³/h | 0.28 m³/h |
| Accuracy class | B | B | B |
| Dimensions (length, width and height) mm | 165×85×115 | 195×85×115 | 225×92×120 |
| Connection thread | G3/4 | G1 | G1 1/4 |
Water temperature | 0~40ºC/90ºC(Hot water meter) | 0~40ºC/90ºC(Hot water meter) | 0~40ºC/90ºC(Hot water meter) |
| Use environment | Working temperature 0~45ºC, relative humidity ≤93% | ||
| Working water pressure | 0.1~1Mpa | ||
| Water meter material | Copper, stainless steel, plastic case | ||
| Water type | Cold water, hot water | ||
| Movement type | Wet type movement, dry type movement | ||
| Realizable function | Tiered water price, monthly minimum consumption, drip measurement | ||
| IC card type | contact cards and non-contact cards | ||
| Power supply | 3.0V, 3.6V lithium battery | ||
| Static operating current | <0.01μA | ||
| Battery life | >6 year | ||
| Power-off data saving | >10 year | ||
