1. The meter has one-year warranty. If the instrument works abnormally, please send the whole instrument to our company for maintenance
2. Provide users with spare parts and lifelong maintenance services
3. Provide the users with the meter calibration service 
4. Free technical support for long term
Manufacturer: Shenzhen Linshang Technology Co., Ltd.   Website:
Service hotline: 086-755-8625 3231                                   Email: