1、Meter Reading: Photoelectric direct reading technology, direct output data dial, no cumulative error pulse
2、Communication protocol: "CJ / T188-2004 household meters data transmission technology," or the two sides agreed
3、Communication: RS-485
4、Power supply: DC 12V, provided by an external device
5、Water temperature: cold water meter ≤50 ℃, hot water meter ≤90 ℃
6、Pressure: ≤1.6 MPa
