Advance Plus Co., Ltd. is a professional manufacturer of electronic hand tools and detectors. Our products include ultrasonic distance meters, digital levels, altitude indicators, and metal, voltage and stud detectors. Our tenet is to help everyone who loves to "do it yourself" to own precise, reliable and safe tools. Caring about customers who love DIY, our R&D staff adopts some advanced and specialized equipment despite changing the precision, safety and reliability, in order to offer ...