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    Parameters :Index (Unit )
    Measuring range :0.3 to 1.0 ; 1.0 to 2.5 ; 2.5 to 10 (mm)
    Counting efficiency :50%@0.3um 98% @> = 0.5 um
    Response time :≤ 10 sec
    DC supply voltage :5 V
    Operating current :120 mA
    Standby Current :≤ 200 µA
    Data interface level :L <0.8 @ 3.3 H> 2.7@3.3 V
    Operating temperature range :-20 ~ + 50 °C
    Operating humidity range :0 to 99%
    MTBF :≥ 3 Year
    Size :65 × 42 × 23 mm

pinout

    PIN1 :VCC :Power Supply (5V).
    PIN2 :GND :Ground.
    PIN3 :SET :Standby mode (when 0), operating mode (when 1) TTL 3V3
    PIN4 :RXD :Serial receive / TTL level @ 3.3V.
    PIN5 :TXD :Serial transmit / TTL level @ 3.3V.
    PIN6 :RESET :Module reset / TTL level @ 3.3V.
    PIN7,8 :NC :Not connected.