Yl-105 Datasheet May 2026

The YL-105 commonly refers to an Infrared Motion Sensor Alarm unit often used for home or commercial security. Based on its datasheet and manual, the most notable features include:

Powerful 105dB Siren: A key feature is its high-volume alarm, designed to be audible from a significant distance when motion is detected.

Wide Detection Range: The unit uses Passive Infrared (PIR) technology to cover a 110-degree wide angle with a detection distance of approximately 5 meters.

20-Second Arming Delay: This functional feature allows you to leave the protected area after turning on the device without triggering the alarm yourself.

Dual Power Efficiency: The main unit runs on 4 x AA batteries, while the remote controls use 3 x AG13 button cells, featuring a low standby current of just 100uA to extend battery life.

Remote Operation: It typically includes two infrared remote controls for convenient arming and disarming from a distance. Technical Specifications Summary Specification Model Detection Technology PIR Motion Sensor Siren Volume Detection Angle Detection Distance Alarm Duration 45–50 seconds (automatic reset) Material Durable ABS plastic

Note: In some niche electronic contexts, "YL-105" may also refer to an 8-pin adapter board specifically designed for the nRF24L01 radio module to simplify wiring and power regulation. Infrared Motion Sensor Alarm YL-105 Instruction Manual

The YL-105 designation typically refers to an Infrared PIR Motion Sensor Alarm or a specific Mechanical Seal. Below are the datasheet details for both versions. 1. Infrared Motion Sensor Alarm (YL-105)

This is a common wireless security device used to detect motion and trigger a loud siren for home or commercial security. Specification Detection Technology PIR (Passive Infrared) Siren Volume Detection Range Approx. 5 meters Detection Angle 110 degrees wide Alarm Unit Power 4 x AA batteries Remote Power 3 x AG13 button cells Standby Current Alarm Current Material ABS plastic (White) Key Features:

Loud Alert: Emits a piercing 105dB alarm to deter intruders.

Wireless Operation: Ideal for garages, sheds, and shops without complex wiring.

PIR Motion Tracking: Triggers only when heat signatures (like a person) move through its field of view. 2. YL-105 Mechanical Seal

In industrial contexts, the YL-105 is a standard mechanical seal used for pumps. yl-105 datasheet

Structure: Single end, multiple springs, and unbalanced design. Specifications: Inner diameter ranges from 35 mm to 180 mm. Pressure Rating: Designed for low-pressure environments.

Standard Compliance: Follows the JB/T1472-94 industrial standard.

Applications: Used in chemical centrifugal pumps, screw pumps, and sewage treatment equipment across industries like oil refining and pharmaceuticals. Related Modules often confused with YL-105

YL-17 / YL-105 Socket Adapter: A breakout board for nRF24L01 wireless modules that includes a 3.3V voltage regulator.

YL-69: A widely used soil moisture sensor often found in similar DIY electronics listings. YL 105 - YALAN Seals - China Mechanical Seal Standard Maker

The YL-105 is commonly identified as an Infrared (IR) Obstacle Avoidance Sensor Module designed for basic object detection and proximity sensing in robotics and automation. It operates on the principle of reflecting infrared light off a surface to detect its presence. Key Technical Specifications Operating Voltage: 3.3V to 5V DC.

Sensing Range: Typically 2 cm to 30 cm (adjustable via onboard potentiometer). Detection Angle: Approximately 35°. Operating Current:

Output Type: Digital TTL signal (0 or 1). Usually, it outputs Low (0V) when an obstacle is detected and High (VCC) when the path is clear.

Comparator Chip: Often utilizes the LM393 voltage comparator for stable signal output. Module Interface (Pinout) The module typically features a 3-pin or 4-pin header: VCC: Power supply input (3.3V–5V). GND: Ground connection. OUT: Digital output signal.

EN (Optional): Enable pin; the sensor is active when this pin is Low and disabled when High. Visual Indicators & Adjustments IR Obstacle Avoidance Sensor Module - SunFounder

The YL-105 is most commonly known as an adapter module for the NRF24L01 2.4GHz wireless transceiver. It is a utility component designed to simplify the connection between a microcontroller (like an Arduino) and the NRF24L01 radio module. YL-105 Datasheet Overview

The primary function of this module is to provide voltage regulation and a stable power supply for wireless communication. The YL-105 commonly refers to an Infrared Motion

Regulated Power: Includes an AMS1117 3.3V voltage regulator. This is critical because the NRF24L01 module is sensitive to voltage and operates strictly on 3.3V, while many microcontrollers provide 5V.

Dimensions & Form Factor: A compact footprint of 26 x 18.6 x 10mm and a weight of roughly 3g.

Connectivity: Features an 8-pin socket specifically for the NRF24L01 Wireless Module and a header for easy wiring to a breadboard or MCU. Expert Review & Performance

Based on its technical specifications, the YL-105 is highly recommended for DIY electronics projects for the following reasons:

Stability: Wireless transceivers often experience communication failures due to "noisy" power supplies or current spikes. The YL-105's onboard capacitor and regulator provide the stable current needed for reliable data transmission.

Ease of Use: It eliminates the need for complex voltage divider circuits or external 3.3V power sources, making it a "plug-and-play" solution for beginners.

Safety: It prevents permanent damage to the NRF24L01 module, which can occur if accidentally connected to a 5V power pin without regulation. Alternate Identification

While the adapter is the most common use of the "YL-105" name, it is occasionally associated with other products in different niche markets:

Home Security: A wireless infrared motion sensor alarm model YL-105 exists, typically used in garages or sheds.

Consumer Tech: There is a YL105 mini drone designed for beginners and kids, featuring brushless motors and 8K video.

Адаптер YL-105 для модуля радио NRF24L01 (8-pin)

The YL-105 is a commonly used 433MHz Superheterodyne Wireless Receiver Module. It is frequently utilized in low-cost wireless communication projects, such as remote control systems, home automation, and sensor data transmission. Connect DO to a microcontroller input

Because it is a generic Chinese module, there isn't a single official manufacturer datasheet like you would find for a major IC (e.g., from Texas Instruments). However, the module is built around a specific RF chip, and its specifications are well-documented in hobbyist electronics.

Here is the comprehensive datasheet and guide for the YL-105 module.

Connect DO to a microcontroller input. Set the threshold so the output is LOW only when a magnet is within 5mm. Mount the magnet on a door and the sensor on the frame. When the door opens, the magnet moves away, and the output goes HIGH, triggering an alarm.

The module has an onboard potentiometer (blue box). This adjusts the reference voltage for the LM393 comparator.

Common calibration: Place the sensor 5mm above a white surface. Turn the potentiometer until the onboard LED just turns off. Now, the module will trigger reliably when seeing white vs. black.

To read data from the YL-105, you do not need a specific library for the module itself, but rather a library for the protocol being used (e.g., RC Switch, VirtualWire).

Wiring:

Antenna: For the module to work effectively, you must attach an antenna.

If you can describe or upload a picture (though I can't see it), or answer these questions, I can give you a specific pinout and application note:

The YL-105 usually comes with a 4-pin header. Looking at the module from the top (with the coil/inductor visible and pins facing down):

   _______________
  |   [Antenna]  |
  |   [Coil]     |
  |              |
  |______________|
    |  |  |  |
    1  2  3  4

Note: Pins 2 and 3 are often interchangeable. Some variations label them simply as two data outputs. You usually only need to connect one DATA pin to your microcontroller.