Photoelectric sensor | Through-beam type | Transmitter + receiver | 500mm | 21,8x14,5x8,4mm | 10-30VDC | NC | NPN | 2 m cable | ABS | red VCSEL beam | IP65

Technical Specifications

Detection type: Through-beam
Nominal detection distance: 50 cm (non-adjustable)
Light source: Red VCSEL (680 nm)
Beam diameter: 4 mm at 50 cm distance
Standard target: ≥ φ2 mm opaque object
Minimum detectable target: ≥ φ3 mm (with proper sensitivity adjustment)
Output type: NPN, NC
Response time: T-on < 0.5 ms; T-off < 0.5 ms
Power supply voltage: 10…30 V DC
Current consumption: ≤ 5 mA (emitter); ≤ 15 mA (receiver)
Load current: ≤ 50 mA
Voltage drop: ≤ 1.5 V
Protection: Short-circuit, reverse polarity, surge protection
Indicators: Green LED – power status and stable signal; Yellow LED – output signal
Light immunity: Sunlight ≤ 10,000 lux; Lamp light ≤ 3,000 lux
Operating temperature: -10…+45 °C (no condensation or freezing)
Storage temperature: -20…+85 °C (no condensation or freezing)
Protection class: IP65
Housing: ABS plastic
Lens: PMMA
Connection: 2 m PVC cable
Package contents: 2 pcs M3×16 mm screws, 2 nuts, user manual

Functions and Operating Principle

The sensor operates on the through-beam principle: the emitter projects a narrow VCSEL laser beam, and the receiver detects its interruption.
When an object passes between them and blocks the beam, the receiver registers the change and activates the output signal.
The VCSEL light source provides the sensor with high precision, excellent signal stability, and the ability to detect very small objects.

Applications

For home users or hobbyists: Suitable for object detection in workshops or DIY automation projects.
For engineers / automation specialists: Ideal for robotics, production lines, conveyors, counting or positioning systems.
For electricians / technicians: Compact housing allows easy installation; clear LED indicators help quickly determine operating status and possible faults.

Pros

VCSEL laser light source – narrow, stable, and easily directed beam

Precise detection of small objects

Fast response time

Compact housing – easy installation in limited space

High IP65 protection – dust and moisture resistant

Cons

Requires precise alignment of emitter and receiver

Not suitable for transparent or reflective surfaces