Electronic handheld spirometer tester for primary and secondary school students' health side physical examination, mouthpiece breathing test

 
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brand:
carefully Caveli
model:
KFL-01
Voltage:
36V and below
Manufacturing company:
Danyang Shunjialiming Medical Technology Co., Ltd.
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Caveli Vital Capacity (plugged in, battery, power bank) Caveli Vital Capacity (plugged in, recharged) dual-purpose model with Guard Vital Capacity (plugged in, battery, power bank) both can be powered, the model with Guard Vital Capacity (plugged in, battery charged)
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