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Home / All / Sensor Products / Photoelectric Sensors / DK-GF18 Series / DK-GF18 Series AC/DC Relay Output Diffuse Reflection Sensors
DK-GF18 Series AC/DC Relay Output Diffuse Reflection Sensors
DK-GF18 Series AC/DC Relay Output Diffuse Reflection SensorsDK-GF18 Series AC/DC Relay Output Diffuse Reflection Sensors

DK-GF18 Series AC/DC Relay Output Diffuse Reflection Sensors

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CategoriesDK-GF18 Series
BrandDADISICK
Product SpecificationsDK-GF18 Series / AC-DC Relay Diffuse (2 models)
SeriesDK-GF18 Series
Specification groupAC/DC 5-wire Relay Diffuse Reflection
Part numbers in group2
Sensing distance80-500 / 100-1500 mm adjustable
Light source850 nm infrared
Operating voltage12-240 V DC / 24-240 V AC
Output options5-wire relay, NO + NC
Maximum load current3 A / 30 V AC, 1 A / 220 V AC
Protection levelIP55
Housing50 x 50 x 18 mm, ABS
Response time20 ms
ConnectionØ6.5 mm 2 m PVC cable
WeightAbout 95 g
CertificationCE, RoHS
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Detail Information

DADISICK · DK-GF18 Series · Group D

AC/DC Relay Output Diffuse Reflection Sensors

AC/DC wide-voltage diffuse reflection sensors with a built-in 5-wire relay output that drives loads directly at 3 A / 30 V AC or 1 A / 220 V AC. 2 orderable part numbers for 80-500 mm and 100-1500 mm adjustable sensing distances.

  • 2 part numbers
  • 80-500 / 100-1500 mm
  • 12-240 V DC / 24-240 V AC
  • Relay output
  • IP55
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DK-GF18 series AC DC relay output diffuse reflection photoelectric sensor
AC/DC diffuse reflection version with 2 m PVC cable.

Orderable models in this group

This group contains 2 orderable part number(s). Choose the output type and sensing distance you need, then quote the exact part number from the table below.

Part numberOutputWiresSensing distance
DK-GF18-50J-ZABRelay output, NO + NC5-wire80-500 mm
DK-GF18-150J-ZABRelay output, NO + NC5-wire100-1500 mm

Output codes: NO / NC / NS = NPN NO / NC / NO+NC; PO / PC / PS = PNP NO / NC / NO+NC; J = relay output. 3-wire models use one switched output, 4-wire models provide NO + NC, and relay models provide NO + NC contacts.

Technical parameters

ParameterValue
Sensing distance80-500 mm / 100-1500 mm, adjustable
Light source850 nm infrared light
Standard detection object200 x 200 mm white cardboard
Output optionsAC/DC 5-wire relay output, NO + NC
Operating voltage12-240 V DC / 24-240 V AC
No-load current≤20 mA
Maximum load current3 A / 30 V AC, 1 A / 220 V AC
Voltage drop≤2.5 V
Switching frequency10 Hz
Response time20 ms
Switching hysteresis<15% (Sr)
Repeat accuracy<5% (Sr)
Protection levelIP55
Working temperature0 °C to +55 °C
Connection methodØ6.5 mm 2 m PVC cable, 3x0.33 mm²
Housing50 x 50 x 18 mm, ABS
IndicatorRed LED
WeightAbout 95 g
CertificationCE, RoHS

Every value is taken from the DK-GF18 technical data sheet, revision dated 2026-04-20. Dimensions are for reference only; please refer to the actual measurement.

Dimensions

DK-GF18 AC DC version dimension drawing 50 mm x 50 mm x 18 mm
50 x 50 mm face, 33 mm body depth, 18 mm thickness and Ø5 mm cable entry.
DK-GF18 sensor with 2 m PVC cable and reflective board
Sensor with 2 m PVC cable; a reflective board is supplied with retro-reflective versions and a transmitter / receiver pair with through-beam versions.

Wiring

DK-GF18 AC DC 5-wire relay output wiring diagram
AC/DC 5-wire relay output. Brown supply, Blue 0 V, Black NO, Gray COM, White NC.
Wire colourFunction
Brown+12-240 V DC / 24-240 V AC
Blue0 V
BlackNO contact
GrayCOM terminal
WhiteNC contact

Confirm the wiring against the label of the unit received before energising. Do not connect the output to a load exceeding the rated current.

Request a quote for this specification group

Tell us the exact part number from the model table, the target object and distance, your supply voltage, and the quantity. Our engineers will confirm the configuration and send a quotation. This is a general-purpose photoelectric sensor for object detection; it is not a safety-rated device and must not be used for personnel protection.

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