南通首科精密仪表有限公司是一家从事地下管网输送和水文在线检测仪表的研发、生产和销售的高科技企业。公司自成立以来，一直致力于国内外空白产品研发，为广大的SCADA系统集成商和工程商提供完美的产品解决方案，间接为最终用户节能降耗、事故预警、节约成本、提高工作效率。如公司一款主打产品，电池供电无线远传压力终端（RPU-Remote Pressure Unit），集传感器、电池、数据采集、无线通讯于一体的智能终端。压力传感器可抵抗20倍满量程的冲击，彻底解决管内水锤和冬天结冰膨胀的威胁。同时支持实时招测和自动间隔15分钟上报的情况下，电池可维持2-6年，即无线通讯不间断工作，长期等待主站招测命令，完全取代必须依赖市电的传统RTU。防护等级达到IP68水下10米，允许永久水下工作，可直接安装在地下阴井，无需建设地表建筑物。现场安装仅需几分钟，大幅度提高集成商和工程商施工周期，将建设成本降到最低极限。采用GPRS无线通讯，该网络覆盖全，能使用手机的地方，就可安装，且支持无限扩容。真正解决用户选点难、移动难、扩点难、施工周期长，以及施工成本高的长期困扰。 　　TTAI(Top Tech Accuracy Instrument) is dedicated in the design and manufacture of battery-powered RTU and instruments, which integrated built-in sensors， batteries, data log and wireless communication module. Our products can be easily embedded to SCADA system. TTAI products and solutions use the latest technologies and innovation to facilitate efficient management of water, gas, hydrology etc.. The main product measures temperature, pressure, and even level of liquids which we refer to as RPU(Remote Pressure Unit). Our RPU has a wide variety uses, it can be used in water grids, the petroleum industry, the farming industry and many other fields. The RPU can simultaneously send data to host computer automatically and be polled at any moment, namely, the communication module uninterruptedly run, in this case the batteries can last 2-6 years. The overloading of RPU is over 20 times than pressure sensor full scale, users do not care water hammer and freezing damage in pipe. The environmental protection classification comes up to IP68, submersible to 10 meter, it is suitable to mount underground, do not need to construct a kiosk for the terminal. The RPU apply GPRS communication, it has nationwide wireless coverage and to be easily extended. TTAI products can instead of any traditional RTU that needs mains power supply.