True Presence, True Radar | Creatrol 24GHz Presence Sensor Application Guide

The Dilemma of "Pseudo-Intelligence"

In the world of smart sensing, users have long been frustrated by two major flaws:

• The "Blindness" of PIR: Passive Infrared (PIR) sensors rely on large movements. The moment you sit still to read, work, or browse your phone in the bathroom, the lights abruptly turn off, forcing an awkward wave to "request" light.
• The "Chaos" of Cheap 5.8GHz Radars: Low-end Doppler radars on the market only detect major motions and are highly prone to interference. Furthermore, their outdated photoresistors offer poor precision and non-linear performance, leading to a fragmented user experience.

By merging 24GHz FMCW technology with our proprietary Hawkeye Algorithm, Creatrol Sensor has ended this sensing predicament. This releases the full physical potential of high-frequency waves, achieving true "breathing-level" static detection.

True Radar, Absolute Presence

A Leap from "Approximate" to "Precision"

Why do standard radars miss you when you're still? Traditional radars use a CW (Continuous Wave) Doppler system, which is essentially a "speed sensor"—it understands motion but is "blind" to stillness.

The Creatrol Advantage: Advanced FMCW (Frequency Modulated Continuous Wave)

• Physical Superiority: The 24GHz wavelength is extremely short and highly sensitive to minute objects. By continuously emitting waves with varying frequencies and analyzing the frequency difference and phase shifts of the return signals, the sensor doesn't just lock onto distance—it captures the millimeter-level micro-motions of the chest caused by breathing.
• Breathing-Level Locking: Even if you are completely motionless, as long as your vital signs remain, the radar accurately locks onto your presence.

Core Moat: CTL Hawkeye Algorithm

Hardware defines the floor; Algorithms define the ceiling.

While FMCW provides extreme physical sensitivity, the ability to harness that sensitivity without "false triggers" is our core competitive advantage.

• Noise Scrubbing: The algorithm has "deep-learned" various environmental clutter characteristics. Like a hawk’s eye, it precisely strips away background noise—such as fan vibrations or AC airflow—to isolate the human breathing signal.
• Engineering-Grade Stability: This is what allows 24GHz radar to move from the lab to real-world projects. It maintains high sensitivity for breathing while offering stability that far exceeds similar products on the market.

Industrial-Grade Quality

• Chip-Level Digital Light Sensing: We’ve replaced cheap photoresistors with professional digital illuminance chips across the entire series. It outputs precise Lux values (1-32,000 Lux) with high linearity, functioning like a dedicated light meter.
• Industrial Component Selection: From relays to power modules, we use high-spec industrial materials. With strong EMC (Electromagnetic Compatibility) and surge protection, it runs 24/7 in power-unstable factories or equipment-dense server rooms.
• Harsh Environment Tolerance: Every unit undergoes high/low-temperature impact and aging tests. It handles the sweltering heat of ceiling voids and the damp cold of underground garages with ease.

Application Scenarios

• Whole-Home Smart Control: Precisely identifies occupancy in complex home environments, avoiding accidental shut-offs while you sit or sleep.
• Bathrooms & Showers: Detects occupants even when they are still (browsing phones or soaking in a tub). It is unaffected by steam, temperature, or shower glass partitions.
• Office Workspace Management: Detects seated staff and enables constant-illuminance control based on precise light sensing—maximizing comfort and energy savings.
• Smart Hotel Guestrooms: Provides "Welcome Mode" when guests enter and energy-saving modes when they leave, all while ensuring absolute privacy (no cameras used).
• Spatial Data Analytics: Monitors dwell time across different zones to provide data-driven insights for optimizing office layouts and retail traffic flow (customer circulation) design.
• Classrooms & Libraries: Ensures continuous lighting during prolonged stationary study sessions. The system automatically adjusts brightness by compensating for the natural light variance between window-side and wall-side areas.
• Smart Security: Provides real-time awareness and instant alerts for any abnormalities or unauthorized presence during unoccupied periods.

Detection Range

When ceiling-mounted at a height of 3.2 meters:
Motion Detection Ø 8.0 meters, Static Detection Ø 6.0 meters.

Specifications

Various Installation Accessories (Universal for Mini Series)

• Frameless Embedded Parts: For pre-installed suspended ceilings, allowing the sensor to sit flush with the ceiling surface.
• Wall Panel Cover: Standard 86-type box panel for wall-mounted installations.
• Surface Mount Sleeve: For exposed external mounting; features a magnetic back for easy attachment.
• Angle-Adjustable Universal Mount: Used with surface mount accessories to provide a wide range of detection angle adjustments.
• Large Aperture Adapter Ring: For use when the ceiling hole is too large or when replacing legacy devices.
• 90° Bracket: For scenarios requiring horizontal detection, such as under desks or bed frames.

Multi-Protocol Versions

Mini Embedded Version
Version / Model / Part Number	Product Image	Order Now
Dry Contact Mini-24G-REL [60.99.2101]
RS485 Mini-24G-485 [60.99.2108]
UART Mini-24G-UART [60.99.2181]
KNX Mini-24G-KNX V2 [60.99.2113]
AC Light Control 300W Mini-24G-S1 [60.99.2111.F20]
AC Light Control 1KW Mini-24G-S1+ [60.99.2111.F21]
Dual-Channel AC Light Control Mini-24G-S2 [60.99.2111.F22]
Tuya ZigBee Mini-24G-TYZ/AC [60.99.2216.F10]
Tuya WiFi Mini-24G-TYW/AC [60.99.2226.F10]
Tuya ZigBee/S1 Mini-24G-TYZ/S1 [60.99.2216.F20]
Tuya WiFi/S1 Mini-24G-TYW/S1 [60.99.2226.F20]
Tuya ZigBee/S1+ Mini-24G-TYZ/S1+ [60.99.2216.F21]
Tuya WiFi/S1+ Mini-24G-TYW/S1+ [60.99.2226.F21]
0-10V Mini-24G-10V [60.99.2104.F42]
DALI Mini-24G-DALI/LTC [60.99.2105.F51]
DALI Mini-24G-DALI/STD [60.99.2115]

Version Descriptions

Tuya Version

The sensor integrates into the global Tuya IoT ecosystem via ZigBee/WiFi. Users can easily manage devices, configure scenes, and enable remote control through the Tuya App. Its flexible deployment and seamless automation with massive Tuya-compatible devices (lights, sockets, curtains) make it ideal for smart homes, hotels, and commercial projects.

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

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. The Creatrol Sensor KNX version maintains ultra-low power consumption (only 10mA) even with Radar, PIR, and Lux sensors fully active. It requires no auxiliary power, significantly reducing installation complexity and costs.

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

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.

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

The sensor outputs a wealth of detection data via RS485—including presence status, illuminance (Lux), switch status, real-time distance measurements, approach/departure triggers, and zone occupancy triggers—enabling the master control system to perform precise logic judgments and data analytics. Options include the universal Modbus-RTU protocol or the high-real-time Unified Active Transmit Protocol.

RS485 Modbus

RS485 Unified Active Transmit Protocol

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

DALI Version

Native support for the DALI-2 standard. Connects directly to existing DALI lighting systems as a smart input device, requiring no additional gateways or complex configurations.

Wiring Reference: DALI Power -> Sensor -> DALI Driver -> Lamp

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.

AC Power Version

Simplifies lighting control with 220V mains power. The sensor directly controls lights (On when occupied, Delay Off when vacant). Connects to 300W or 1kW Light Control BOX.