What should I look for when buying an ultrasonic scaler? Which brand is good

1\Ultrasonic scaler to buy the first should try to choose years have been engaged in the production of dental cleaning machine manufacturers of products, that is, the old brand, after all, to survive so far, the quality is still too good to go. Recommended old brands: Guilin woodpecker, Guilin giant star, Zhengzhou a beauty. These three have been around since the 1990s. After them is Zhengzhou Baiyu, Zhangzhou diamond, Changsha Zhongnan, Guangzhou Blue Wild, etc. After 2006, a lot of new manufacturers and brands have sprung up, such as Guilin Likang, Guilin Weirun, Nanning Baolei, Foshan WoWo, Foshan Biyin, Wuhan Mubang, Shengzhou SKL, Suzhou Myriad and so on, it is recommended to buy the old brand, relatively more guaranteed. 2 \ Try to get around the peers to recommend them to use the products of the manufacturers. 3 \ Try to get around the peers to recommend them with a good! 3\Try to buy products from manufacturers close to you, after-sales service is more guaranteed.