Active Non-contact Infrared Sensor, 2cm~150cm

SKU: SUCH-IRS-Z5

$53.54

● Sensing distance 2cm~150cm, sensing angle 10~15° cone angle ● Power supply voltage DC 5~12V, no-load working current 5~50mA ● Working temperature -10~75℃, storage temperature -20~70℃ ● Shell material PE, protection level IP55

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

Good price active non-contact infrared sensor for sale. Active non-contact IR sensor is an intelligent infrared sensor with high and low level or NPN drive output. SUCH active non-contact infrared sensor uses the principle of diffuse reflection of infrared light on objects. When a person or object enters the sensing area set by the sensor, the sensor outputs a signal, and the sensor turns off the output after the person or object leaves the sensing area.

Feature

Strong anti-interference ability.
Intelligent induction non-contact switch, safe and hygienic.
Small induction angle, close to a straight line.
Small size, easy to install.
Multiple output modes, simple and convenient to use.

Dimension (Unit:mm)

Active non-contact infrared sensor dimension

Wiring

Active non-contact infrared sensor wiring

Sensing Range

Active non-contact infrared sensor sensing range

Sensing Distance Adjustment

Active non-contact infrared sensor sensing distance adjustment

Place a piece of kraft paper of about 80cm*80cm*70cm (set according to user needs within the range of 10~150cm) directly in front of the sensor.
The sensor is powered on.
Open the back cover of the sensor and press the small dot button in the upper right corner.
Release the button after the indicator light turns on for about 1~2 seconds, and enter the automatic adjustment sensing distance mode. The sensor and the cardboard remain stationary, and there should be no other objects blocking them. After waiting for about 10 seconds, the indicator light stops flashing and automatically saves the data; it automatically returns to the normal working mode. The distance adjustment is completed.

Specs

Power Supply Voltage	DC 5~12V
Induction Distance	2cm~150cm adjustable
Induction Distance Adjustment Method	Button to automatically calibrate the induction distance, which can be saved when the power is off
Induction Angle	10~15° cone angle
Induction Mode	Active
No-load Working Current	5~50mA (the longer the induction distance, the greater the working current)
High-level Output Current	≤1.2mA source current
Low-level Output Current	≤300mA sink current
NPN Disconnect Output Current	0mA
NPN Closed Output Current	≤300mA sink current
Pulse Output	Static current <100uA or <40uA, working current <100mA
Output Mode	High and low level signal output/switch NPN output/pulse output
Indicator Light	The red light turns on when sensed
Working Environment	10000Lx sunlight, 3000Lx incandescent lamp (can work normally under direct light of 1000W energy-saving lamp 1 meter away)
Working Temperature	-10~75℃
Storage Temperature	-20~70℃
Wire Length	25cm
Shell Material	PE
Protection Level	IP55

Note: Since the output of digital circuit has only two level values, high and low (0,1), when the high level is output, the output end generally provides current to the load, and the value of the current provided is called "source current". When the low level is output, the output end generally absorbs the current of the load, and the value of the absorbed current is called "sink current".

Model Selection

High and low level signal output	Positive output, high level 5V output when entering the sensing area, low level 0V output when leaving the sensing area.
High and low level signal output	Reverse output, enter the sensing area to output low level 0V, leave the sensing area to output high level 5V.
High and low level signal output	Positive output, enter the sensing area to output high level VCC, leave the sensing area to output low level 0V.
High and low level signal output	Reverse output, enter the sensing area to output low level 0V, leave the sensing area to output high level VCC.
NPN open-drain output	Normally open, enter the sensing area load work, leave the sensing area load does not work.
NPN open-drain output	Normally closed, enter the sensing area load does not work, leave the sensing area load work.

The output mode is that a sensor can only have one output mode.

High and low level signal output: Only one high and low level signal is provided, which is suitable for small current to control large current, control external circuits, U signal recognition and judgment, etc.
Switching output: The signal sent by the switching sensor is a contact signal, which has two states: open and closed. For example, the infrared sensor switch is a common switching sensor. When an object enters the sensing area set by the sensor, the infrared sensor switch is open (or closed), and when the object leaves the sensing area set by the sensor, the switch is closed (or open).
NPN output: NPN output is one of the three-wire switching outputs. When the sensor output is disconnected, it is in a suspended state without voltage, and can be connected to the VCC input voltage through a pull-up resistor. When the sensor output is closed, the voltage is 0V, that is, it is turned on to 0V (negative pole of the power supply). NPN output can directly control loads with a current of less than 300mA. Such as: LED lights, relays, solenoid valves and other loads. The maximum output current inductive load is 100mA. Resistive load is 300mA.

Application

Stairs

Courtyard

Hallway

FAQ

Q1: What is the working principle of the active non-contact infrared sensor? ❯

The working principle of the infrared sensor is the diffuse reflection principle of light, which is easily affected by the color of the reflected object (sensed object), and the black and white color sensing is quite different. When using it, try not to place white objects in front of the sensor.

Q2: What should I pay attention to when installing the active non-contact IR sensor? ❯

When installing, avoid working in an environment with a high dust concentration, because high dust concentration is equivalent to a sensing object, which will cause the sensor to make an incorrect judgment.

Q3: What situations will interfere with the operation of the active IR sensor? ❯

The infrared receiving device is easily interfered by strong light (ordinary indoor light is not affected). When the light is too strong, the sensitivity is reduced and the distance becomes closer. When using active non-contact infrared sensors, try to avoid strong light shining directly on the probe, which will shorten the sensing distance and affect the function.

1 review(s)

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From: Felix | Date: 5/5/2026 5:45 AM

Reliable non-contact IR sensor for my project

Grabbed this infrared sensor for a custom automation setup. The 2cm~150cm range is actually easy to adjust with the calibration button—way better than old-school potentiometers. The PE shell feels solid, and it handles ambient light well. My only gripe is the 25cm wire is a bit short, but for the price, it’s a steal for any DIYer.

Active Non-contact Infrared Sensor, 2cm~150cm

Feature

Dimension (Unit:mm)

Wiring

Sensing Range

Sensing Distance Adjustment

Model Selection

Stairs

Courtyard

Hallway

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