Electronic Handheld Spirometer for Physical Fitness Testing

This electronic handheld spirometer is designed for physical fitness testing and is suitable for students taking the secondary school entrance examination. It is made of ABS material and is a training aid. The product is manufactured in Zhumadian, Henan. The model number is ST-4 and the brand is Pinguan. It is suitable for football and is designed for sports fashion scenarios. It has a quality inspection report and is available for custom processing. It is a cross-border export dedicated supply source and has an authorized own brand.