They are safe to use because they only need low voltage.
它们使用安全,因为它们只需要很低的电压。
Also the device is very safe and easy to calibrate for voltage.
此外设备是非常安全和容易的电压校准。
Low voltage, safe and jarless.
低电压供电,安全稳定。
Safe; Low voltage dc 12V power supply , so it's very safe.
安全;采用低压直流12V供电电压,因此使用上非常安全。
Safe; Low voltage dc 12V power supply , so it's very safe.
安全;采用低压直流12V供电电压,因此使用上非常安全。
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