What number battery is the intelligent cold water meter battery of Zhuhai Ding Tong Technology Co., Ltd.

The fifth one. Zhuhai Ding Tong Technology Co., Ltd. was established in 2004, located in Zhuhai City, Guangdong Province, and is an enterprise mainly engaged in instrument manufacturing. The smart cold water meter battery of Zhuhai Ding Tong Technology Co., Ltd. is the 5th battery. The company is mainly engaged in software development, technical service, research and development, production and sales of electronic instruments and measuring instruments.