At present, the main types on the market are divided into single-pass and dual-channel and three-channel according to functions, and are divided into: 1A, 2A, 5A, 10A, 20A, 40A, 50A, 60A, 100A according to the current;
The main differences between DC resistance testers are: single-pass is mainly based on the load can automatically select the current, suitable for small and medium-sized transformers and voltage transformers and transformer windings and DC resistance measurement of high-power inductors, and which can be optional With battery, printer, USB interface, R232 interface and other functions;
The dual channel is designed for temperature rise measurement of three-core and five-column large transformers. It has fast charging and measuring speed, can meet the time requirement of transformer temperature rise test, and can measure two resistance values ​​at the same time.
The three-channel is an instrument for simultaneous measurement of three-phase three-phase transformer winding DC resistance. The instrument can test the three-phase of the transformer winding at the same time. The on-load tap-changer can be directly adjusted and tapped. The model can be selected according to different test items. As for the price of the DC resistance tester, the price is provided according to different selection functions.
Louder Bluetooth speaker is very popular with Europe and America people due to simple and applicable appearance design,
Our as sociated factories cover an area of 1900square meter s and produc tion capacity 100000 pcs per month, We are devoting on the resear ch and development moldingand production. We have experienced and efficient employees to make our private model in excellent conditions.
The wireless bluetooth speaker supports the function bluetooth player/U disk/TF card/auxiliary player/hands-free call.
TWS can be connected in series. After the two wireless speaker are turned on, press one of Bluetooth speaker the[ M "button and hold for 3 seconds. The two speaker will be automatically paired, and then search for Bluetooth to connect to from phone.
The hands-free call Bluetooth speaker allows you to not miss any calls when listening to music, and can be used outdoors, family gatherings, parties, etc.
The louder Bluetooth speaker can support maximum to 40W speaker subwoofer, and the sound is very shocking. Equipped with a nylon and leather strap, it can be carried with you or cross-body, it is very convenient to carry out, and the use of waterproof fabric, the highest IPX6 level, so you have no worry when traveling outdoors.
Bluetooth Wireless Speaker, Waterproof Bluetooth Speaker, Rechargeable Blutooth Speaker
Shenzhen Focras Technology Co.,Ltd , https://www.focras.com