| Diameter（DN）mm |
65 |
| Overload flow rate（Q4） m³/h |
50 |
| Normal flow rate（Q3）m³/h |
40 |
| Transitional flow rate（Q2）m³ |
0.8/0.64/0.51 |
| Min flow rate（Q1）m³/h |
0.5/0.4/0.32 |
| Measuring range（Q3/Q1） |
80/100/125 |
| Class of accuracy |
Class 2.0 |
| Working pressure |
≤1.6 M Pa |
| Pressure loss |
△P63（≤0.063M Pa） |
| Working temperature |
Coldwater meter（T30）:0.1℃~30℃/ Hot water meter（T90）:0.1℃~90℃ |
| Sensitivity to irregularity in the upstream /downstream velocity classes |
U10, D5 |
| Climate and mechanical environment safety rating |
Class B |
| Electromagnetic environmental class |
E1 |
| Working voltage |
3.6V lithium battery |
| Static working current |
≤10uA |
| Battery lifetime |
6 years（Report the pattern once a day） |
