This handheld is a portable and versatile device. It can convert electrical signals into visual wave forms, can directly analyze and measure various characteristics of electrical signals, perfect in various fields, such as electrical engineering, medicine, scientific research, etc. Features -Color:Assorted Color -Material:ABS -Size:21.00 5.00X5.00cm/8.25X5.89 .97in -Sampling rate: 2. /s -Bandwidth: 200K -Coupling mode: /DC -Display: 2.8 inches / :320 x -Vertical sensitivity: 10mV/ DIV-20V /Div( by 1-2-5) -USB charging: 5V/1A -Time : 10µs/ div- /Div( by 1-2-5) -Lithium battery capacity: 1000mAh -Calibration : Frequency :1K; Duty cycle :50% - range: :40V ( :80V) 0: ±400V ( :800V) - Portable and lightweight: The digital is small and lightweight, making it easy to carry around and use wherever you are. - Folding stand: The comes with a support stand that allows it to be upright on the table for easy viewing and operation. - Long endurance: The tester comes with a battery that has a long battery life, perfect for applications where power may not be readily available. - Easy operation: The is easy to operate, with intuitive controls and a user-friendly interface. This makes it accessible to users of all skill levels. - Wide application: This tester can be used in various fields, including electronics, telecommunications, automotive, and medical fields. Package list: 1 x 1 x charging cable 1 x ordinary probe 1 x high pressure probe 1 x adapter 1 x user manual