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Limitless Potential | Creatrol 24GHz MAX Human Presence Sensor

By Creatrol Engineering March 6th, 2026 104 views
Double the Range! The Creatrol 24GHz MAX Radar Sensor
is the definitive solution for expansive environments.

In smart home and office projects, standard sensors often fall short when facing large open-plan living rooms (>50 m²), long conference rooms, or open-plan offices:

  • Restricted Coverage: Standard radars typically have a stationary detection diameter of only ~6 meters, leaving significant blind spots in large rooms.
  • Installation Complexity: To cover the entire area, multiple sensors are often required. This doubles wiring costs and necessitates complex debugging to avoid signal crosstalk between radars.
  • Signal Decay at Distance: As distance increases, weak breathing signals are easily drowned out by environmental noise, leading to "false-offs" for occupants sitting in corners.
Coverage Comparison

Large spaces demand a more powerful sensing architecture.

Through physical hardware scaling and deep algorithmic iterations, Creatrol Sensor officially introduces:
24GHz MAX mmWave Radar Presence Sensor.

It breaks the physical constraints of detection distance, simultaneously elevating both motion and stationary detection ranges to 10 meters—truly achieving "one device to control the entire hall."


The "MAX" Physical Evolution

The MAX series moves away from the ultra-compact 35mm cutout of the Mini series in favor of a 55mm cutout design. This is not just an aesthetic change; it is a performance-driven necessity.

  • Superior Signal Capture: Capturing a faint breathing signal from 10 meters away pushes micro-antennas to their physical limits. The MAX series features a re-engineered high-gain large array antenna. The increased physical surface area provides significantly higher sensitivity and a better Signal-to-Noise Ratio (SNR)—the hardware foundation for 10-meter stationary sensing.
  • Optimized Interference Shielding: The increased internal volume allows for a superior RF circuit layout, increasing the isolation between transmit and receive antennas. This physically reduces clutter and ensures a purer signal.
Hardware Evolution

Core Advantages

80 m² Coverage Area: With a 10m detection diameter, a single MAX sensor covers nearly 80 m². In a standard luxury villa living room or a large boardroom, one device is all you need—no stacking required.

  • CPU & Algorithm Upgrade: While hardware provides the power, our upgraded high-frequency, large-memory core provides the intelligence. Enhanced with the CTL Hawkeye Algorithm, performance is significantly more robust.
  • Long-Range Breathing Lock: Specialized signal enhancement for the 6–10 meter zone ensures that an occupant sitting at the far end of the room remains locked in the system.
  • Advanced Noise Filtering: Large spaces often have complex airflow and ambient noise. The MAX algorithm optimizes SNR analysis at long distances to effectively filter out false alarms.
  • Precision Constant-Illuminance: Built-in professional digital light sensor (0–32,000 Lux) enables active constant-illuminance control. It automatically supplements light only when natural light is insufficient, maximizing comfort while minimizing energy waste.24GHz MAX Radar Intro

Selection Guide: Mini or MAX?

Mini vs MAX

We have built a comprehensive product matrix to ensure the right fit for every scenario:

Feature Mini Series (35mm Cutout) MAX Series (55mm Cutout)
Keywords Invisible, Refined, Compact Wide-area, Powerful, Expansive
Best Scenarios Bathrooms, Walk-in Closets, Standard Bedrooms, Private Offices. Grand Living Rooms, Large Boardrooms, Open-plan Offices, Lecture Halls.
Primary Reason Perfect for spaces where coverage is easily met and a "hidden" aesthetic is preferred. Reduces node count and installation costs while maintaining stability at long range.
Coverage Comparison Animation

Application Scenarios

The "Iron Triangle" of FMCW mmWave + Digital Light Sensing + Hawkeye Algorithm delivers superior performance in expansive environments:

  • Whole-Home Smart Control: Effortlessly covers grand living rooms, including sofa areas, TV zones, and corridors. Whether you are reading on the sofa or organizing in a corner, the sensor accurately identifies true presence, enabling a seamless and comfortable smart home experience through precise device linkage.
  • Offices: Perfectly covers long conference tables or open-plan workstations. It precisely detects seated personnel and utilizes the built-in digital light sensor for constant-illuminance control. Lights are automatically turned off once the area is vacant, ensuring both comfort and energy efficiency.
  • Smart Hotel Guestrooms: Specifically designed for large executive suites or elevator lobbies to ensure zero-blind-spot detection. It triggers "Welcome Mode" the moment a guest enters, significantly enhancing energy management and the premium guest experience.
  • Spatial Data Analytics: Tracks personnel dwell time across different zones, providing data-driven support for optimizing office layouts and commercial traffic flow (customer circulation) design.
  • Classrooms & Libraries: Covers expansive teaching and study areas. It ensures continuous lighting during prolonged stationary study sessions and automatically adjusts brightness based on the natural light variance between window-side and wall-side areas to protect students' eyesight.
  • Smart Security: Operates 24/7 with high-precision detection of micro-vibrations and unauthorized intrusions. When the premises are unoccupied, it can be linked to alarm systems to instantly alert management and deter intruders.
Scenario 1 Scenario 2 Scenario 3 Scenario 4

Detection Range

At a 3.0m mounting height, the diameter for both motion and stationary detection is ≥ Ø 10.0m.

10m Detection Range

Specifications

Technology 24GHz mmWave Radar (FMCW)
Installation Height 2.0~4.0 meters
Detection Angle 360°
Detection Distance At 3.0m height:
Max 10.0m Diameter (Motion & Stationary)
Delay Time 1~3600 seconds
Detection Sensitivity 0~100%
Illuminance Sensor 0~32000 Lux (Accuracy ±4%)
Operating Environment Temperature -20 ~ 45°C, Humidity < 95%
LED Indicator Breathing indicator light; automatically adjusts brightness based on ambient light level.
(Can be set to "Off" mode).
Protocol Support KNX, RS485, WiFi, ZigBee, Dry Contact, AC Control and more

Multi-Protocol Versions

R5 MAX Series
Version / Model / Part Number Product Image Order Now
Dry Contact
CTL-SEN-R5/6201
[60.50.2501]
RS485
R5-24G-485
[60.50.2508]
UART
R5-24G-UART
[60.50.2581]
KNX
R5-24G-KNX
[60.50.2503]
Tuya ZigBee
R5-24G-TYZ
[60.50.2516]
Tuya WiFi
R5-24G-TYW
[60.50.2517]
Tuya BLE
R5-24G-TYB
[60.50.2527]

Version Descriptions

Tuya Version

The sensor integrates into the global Tuya IoT ecosystem via ZigBee/WiFi. Users can effortlessly add devices, configure scenes, and manage operations remotely via the app, ensuring flexible deployment.

Beyond simple device linkage, the app provides real-time visibility into activity and bed occupancy (in-bed/out-of-bed) status. If a fall or prolonged inactivity is detected, alerts are pushed to the smartphone within milliseconds, breaking spatial limitations.

Seamless automation with a vast array of Tuya-compatible devices (e.g., lights, sockets, curtain motors) makes it ideal for smart homes, hotels, and smart commercial installations.

Wiring: 220V Mains -> Power Box -> Sensor

Tuya Wiring

KNX Version

KNX is the global standard for home and building control. It uses a dedicated bus for power and communication, ensuring superior stability and interference resistance. Maps high-dimensional data resolved by the 60GHz radar—including fall status, presence, left/right bed return/exit, and zone entry/exit triggers—into KNX Group Objects for seamless system programming and integration.

Wiring: KNX Bus Power -> Sensor 1 -> Sensor 2

KNX Wiring

ETS Programming
Certified database provided. All parameters are configured via ETS. Creatrol offers complete bilingual tutorials covering database setup, Easy/Advanced modes, and scene linkage.

KNX ETS 1 KNX ETS 2

For detailed ETS operations, please scan the QR code below or click the link to access the CTL-KNX series user manuals and video tutorials.

RS485 Version

Outputs rich detection data (presence, lux, and switch status) for precise logic and system analytics. Supports universal Modbus-RTU or high-real-time Unified Active Transmit Protocol.


RS485 Modbus

RS485 Modbus

RS485 Unified Active Transmit Protocol

Wiring: DC Power -> RS485 Gateway -> Sensor 1 -> Sensor 2

RS485 Wiring

Dry Contact Version

Features a silent solid-state relay with no mechanical vibration or arcing, ensuring a much longer lifespan than traditional relays. Ideal for integration with various smart and security systems.

Wiring: Connects to Smart System Input Modules.

Dry Contact Wiring 1
Dry Contact Wiring 2

AC Power Version

Simplifies lighting control with 220V mains power—direct control for "Lights on when occupied." Connects to 300W or 1kW Light Control BOX.

AC Power Wiring AC Power 300W AC Power 1000W



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