产品名称（Product Name）：Horizontal propeller hot water direct reading remote water meter

功能（Function）：

1.1No power supply is required at ordinary times. The direct reading device is powered on only at the moment of meter reading. The electronic part does not directly contact the mechanical part of the meter, which does not affect the meter measurement.

1.2The display mode of mechanical measurement does not change, which is convenient for users to check water consumption intuitively; the photoelectric directly reads the meter window value, and the measurement is accurate.

1.3Computer remote automatic meter reading.

主要技术参数（Main technical parameters）：

2.1 Maximum allowable working pressure: equal to 1.0MPa.

2.2 Maximum allowable working temperature: 30℃ for cold water meter and 90℃ for hot water meter.

2.3 Metering characteristics

Grade 2 water meter (accuracy grade is grade 2)

In the water temperature range of 0.1℃ to 30℃, the maximum allowable error of the water meter is ±2% in the high zone (Q2≤Q≤Q4) and ±5% in the low zone (Q1≤Q＜Q2). When the water temperature exceeds 30℃, the maximum allowable error of the water meter in the high zone is ±3%, and the low zone is still ±5%.

主要机械参数（Main mechanical parameters）：