Active doppler

337 active doppler products are offered for sale by suppliers on Alibaba.com, of which other veterinary instrument accounts for 47%, other ultrasonic & electronic equipment accounts for 18%, and medical ultrasound instruments accounts for 16%. A wide variety of active doppler options are available to you, such as plastic, metal and steel.You can also choose from electrical, machinery active doppler,as well as from class ii, class i, and class iii active doppler, and whether active doppler is gb15979-2002, mol, or gb/t18830-2009.