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Digital output version optical fast DO sensor
RINKO II / II D - JFE Advantech Co., Ltd.
Rinko II is a digital output version with a fast-response optical DO sensor. The instrument can be easily integrated on platforms, because it works with communications by RS-232C or RS-485 and an external power (12 to 24V DC).
Rinko IID has not only a temperature sensor but also a depth sensor. Their models can monitor DO in real time, if you have a personal computer and an external power.