What requirements should the connector for the blood oxygen sensor of monitors meet?

Q: What requirements should the connector for the blood oxygen sensor of monitors meet?

A: It needs to be miniaturized (volume <15mm×15mm), low-power (current ≤1mA, compatible with monitor battery power supply for a battery life of ≥8 hours), and low-noise (signal-to-noise ratio ≥70dB to capture weak blood oxygen signals). The HR10 series (medical grade) is recommended. It has 4 pins, and its shell is made of medical-grade PC (no extractables, compliant with ISO 10993 biocompatibility requirements). The contacts are plated with pure gold (hypoallergenic to avoid skin irritation for patients), and it has an IP65 protection rating to resist sweat and dust.