24GHz True Presence Sensor & Smart Office Automation | Trueisense

Author : Trueisense 764 | Published On : 27 Jul 2026

24GHz True Presence Sensor & Smart Office Automation | Trueisense

Quick Answer

A true presence sensor is an advanced 24GHz FMCW radar sensing device that detects real human presence—even in the total absence of physical movement—by identifying micro-movements, breathing, and posture shifts. Unlike conventional motion sensors that trigger false off-switches when employees sit quietly at computer desks or in meeting rooms, true presence sensors ensure uninterrupted illumination and climate control as long as an occupant is in the room. Engineered specifically for commercial offices, healthcare wards, and luxury hospitality spaces, TRUEiSENSE true presence sensors deliver verified energy savings between 40% and 80%, with capital payback achieved in 18 to 24 months. TRUEiSENSE provides standalone 24GHz radar detectors from Rs. 3,260.00 to Rs. 4,299.00 and presence-integrated LED luminaires starting at Rs. 1,449.00.

Product Overview

TRUEiSENSE Crux Detector (24GHz FMCW Radar Sensor):

Technology & Capabilities: Operates on 24GHz radar frequency to capture micro-vibrations and human chest breathing movements. Built with programmable LUX thresholding, variable time delays, and a 360° detection envelope.
Target Application: Executive cabins, private workstations, IT server centers, and high-security zones.
Pricing: Rs. 4,299.00.

TRUEiSENSE 2x2 Presence Sensor Panel (Auto-Dimmable LED):

Technology & Capabilities: Recessed grid luminaire featuring built-in high-frequency radar presence detection. Provides dynamic multi-stage dimming (100% full light to 10–20% standby) and automatic shutoff during vacancy.
Target Application: Open-plan corporate offices, boardrooms, and institutional lecture halls.
Pricing: Rs. 3,699.00.

TRUEiSENSE Wave Detector (24GHz Ultra-Precision Sensor):

Technology & Capabilities: Delivers tiered sensing zones—10-meter motion detection, 5-meter micro-presence detection, and 3-meter true presence breathing detection.
Target Application: Research laboratories, healthcare wards, libraries, and university study halls.
Pricing: Rs. 3,499.00.

TRUEiSENSE OCT DELTA (360° Ultra-Precision True Presence Sensor):

Technology & Capabilities: Compact 360° ceiling-mounted radar sensor engineered for zero false triggers caused by pets, curtains, or HVAC air currents.
Target Application: Enclosed office cabins, consultation rooms, and residential smart spaces.
Pricing: Rs. 3,260.00.

TRUEiSENSE OCT X LUO PRO (18W IP65 Presence Bulkhead Light):

Technology & Capabilities: Fully automatic, weather-resistant IP65 bulkhead fixture equipped with an integrated presence detector for reliable indoor and outdoor performance.
Target Application: Restrooms, wet utility corridors, perimeter stairwells, and industrial passages.
Pricing: Rs. 1,499.00 – Rs. 1,599.00.

Introduction

In modern corporate environments and commercial institutions, early-generation motion detection systems frequently fail user expectations. Traditional Passive Infrared (PIR) and basic microwave sensors only detect major physical movement, such as walking down a hallway. When employees sit still at computer desks, review documents, or conduct virtual meetings, these older sensors assume the space is empty—plunging rooms into darkness and forcing occupants to wave their arms to restore lighting.

Upgrading to a true presence sensor network eliminates these false off-triggers permanently. Powered by 24GHz millimeter-wave FMCW radar algorithms, true presence sensing monitors micro-vibrations—including human breathing and subtle posture shifts—to confirm actual room occupancy.

At TRUEiSENSE, we build true presence detection systems designed to meet demanding commercial operational standards. This guide details how 24GHz radar presence sensors operate, where they maximize energy performance, and how facility managers can select the appropriate devices for their properties.

Key Benefits of True Presence Sensor Automation

Zero Premature Shut-offs: True presence sensing monitors continuous human occupancy by tracking breathing and micro-movements, ensuring lights stay active during long desk sessions or presentations.
Significant Energy Cost Reduction (40–80%): Ensures energy is consumed exclusively when humans are in the room, eliminating power draw in vacant office cabins, healthcare wards, and meeting spaces.
Elimination of Environmental False Triggers: Unlike standard motion detectors, 24GHz FMCW radar algorithms filter out non-human motion caused by ceiling fans, moving curtains, or HVAC airflow.
Extended Luminaire & Driver Longevity: Modulating light levels through automatic dimming reduces thermal build-up in LED drivers, extending component lifespan beyond 50,000 operational hours.
Multi-System Automation (Lighting, HVAC & Security): Integrates cleanly with IoT and Building Management Systems (BMS) to control lighting, air conditioning, and access control dynamically based on occupancy.

Commercial & Industrial Applications

1. Smart Corporate Office Cabins & Workstations

Corporate cabins experience variable occupancy throughout the day. TRUEiSENSE Crux Detectors and ZENSOR units maintain steady illumination and HVAC airflow during desk work without requiring physical motion to keep systems active.

2. Healthcare Facilities, ICUs & Patient Wards

Hospital patient rooms and diagnostic suites require continuous monitoring without intrusive optical cameras. TRUEiSENSE Wave Detectors track patient presence silently, regulating night lights and climate controls automatically.

3. Hotels, Hospitality & Conference Halls

Hotel guest rooms and conference spaces frequently suffer from energy waste when guests leave climate systems or lights running. Integrating true presence sensors allows hotel operators to automate room power based on guest presence.

4. Educational Facilities, Libraries & Study Cabins

University classrooms and libraries experience extended periods where students read or take notes quietly. 24GHz radar presence sensors maintain illumination across study bays while ensuring empty aisles power down automatically.

Technology Comparison: Motion vs. Presence vs. True Presence

Selecting the right sensing technology requires matching device capabilities to occupant activity levels.

Standard Motion Sensors (PIR / Optical):

Sensing Principle: Measures thermal infrared differential across physical movement paths.
Best For: Corridors, stairwells, and transient walkways.
Limitation: Fails when occupants remain seated or motionless; requires direct line of sight.

Conventional Presence Sensors (5.8GHz Microwave):

Sensing Principle: Transmits low-frequency microwave signals to detect general area movement.
Best For: High-ceiling warehouses, open parking bays, and large logistics floors.
Limitation: High sensitivity can cause false triggers from vibrating pipes or thin partition walls.

True Presence Sensors (24GHz FMCW Radar):

Sensing Principle: Transmits 24GHz millimeter-wave radar to detect micro-movements, breathing, and heartbeat displacement up to 10 meters.
Best For: Executive cabins, conference rooms, patient wards, and quiet work environments.
TRUEiSENSE Range: Crux Detector (Rs. 4,299), Wave Detector (Rs. 3,499), OCT DELTA (Rs. 3,260).

Frequently Asked Questions (FAQ)

Q: How does a true presence sensor detect a person who is sitting completely still?

A: True presence sensors utilize 24GHz FMCW millimeter-wave radar technology that measures microscopic movement and chest displacement caused by human breathing, keeping systems active without requiring overt physical motion.

Q: Can TRUEiSENSE true presence sensors control HVAC systems alongside lighting?

A: Yes. TRUEiSENSE sensors provide relay outputs and IoT connectivity that allow simultaneous control over lighting fixtures, air conditioning units, and ventilation fans based on room occupancy.

Q: Will a true presence sensor penetrate glass or office partition walls?

A: 24GHz radar signals can pass through light materials like glass enclosures, thin plastic, and drywall partitions. Sensitivity settings can be adjusted via onboard controls to define precise detection radiuses and avoid detecting hallway traffic.

Q: Are TRUEiSENSE presence sensors safe for healthcare and residential environments?

A: Absolutely. TRUEiSENSE radar presence sensors operate at low power levels well within international safety limits, making them safe for continuous use in hospital wards, ICUs, and office spaces.

Q: How can facility managers estimate payback timelines for presence sensing upgrades?

A: Payback periods typically range between 18 and 24 months. Facility managers can use the TRUEiSENSE Free Energy Savings Assessment tool to calculate project ROI based on current electricity tariffs and burn hours.

Conclusion

Deploying 24GHz true presence sensor technology across your facility resolves the operational limitations of traditional motion lighting. By tracking human presence accurately through micro-movement and breathing detection, commercial facilities can optimize energy consumption in office cabins, conference rooms, and patient care areas.

To evaluate your building's energy wastage and receive a detailed payback roadmap, book a Free Energy Savings Assessment with TRUEiSENSE today. For outdoor lighting automation, explore our CCMS Sensor Street Lighting Solutions.

Written from direct product testing and specification verification by the TRUEiSENSE Editorial Team. Product specifications, pricing, and model references are cross-verified against official brand listings and verified product pages on trueisense.in. Last updated: July 2026.