LD2420 24GHz Human Presence Sensor

Name: LD2420 24GHz Human Presence Sensor
Brand: L D2420
SKU: 106691

Best price from 1 store

£3.50 GBP

Lowest ever

Best price at The Pi Hut

Priced in GBP — no conversion needed

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52-wk Low

£3.50

Average

£3.50

52-wk High

£3.50

Priceino Verdict

A quick read on fit, value and timing.

The LD2420 offers advanced presence detection capabilities for smart home integrations, balancing performance and customizability for tech-savvy users.

Good fit for

Smart home automation projectsOccupancy-based lighting controlSecurity and intrusion detection systems

Avoid if

You need outdoor presence detectionYou prefer simple passive infrared (PIR) sensorsYou have a tight budget and basic motion detection is sufficient

Where to buy

Prices verified within 48 hours

★ The Pi Hut Best price In stock · Price checked 20 hours ago £3.50 GBP Store currency Buy now

30-day price prediction

Price likely to remain stable over the next 30 days

40%

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Price has been relatively stable over the last 30 days

Currently at all-time low — historically tends to rise after

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About this product

The LD2420 is a 24GHz radar-based human presence sensor designed for smart home and automation applications. It detects motion and stationary presence with high precision, making it suitable for energy-saving lighting, security systems, and occupancy monitoring. Key specs include 24GHz frequency operation and support for multiple detection zones.

Key features

24GHz mmWave radar technology for precise presence detection
Detects both moving and stationary human presence
Adjustable detection zones and sensitivity settings
Low power consumption suitable for battery-powered devices

Pros

Accurate detection of stationary humans, not just motion
Works through walls, glass, and non-metallic materials
Compact size for easy integration into various devices
Customizable settings for specific application needs

Cons

May require careful placement to avoid false triggers from pets
Limited to indoor use; not waterproof without enclosure
Requires technical knowledge for full feature utilization

Buying advice

Who should consider this product and what to check before buying.

The LD2420 is best for DIY smart home enthusiasts and professionals seeking reliable presence detection. Consider your installation environment and desired detection range. It offers excellent value for precise occupancy sensing in lighting and security applications.

Price History

Last updated · 1 store

Price Timeline

Key pricing milestones tracked by Priceino.

28 Jul 2026

First tracked

Priceino started monitoring this product

23 Oct 2026

Today — £3.50 · lowest ever

The cheapest we have ever recorded — a great time to buy

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Frequently asked questions

Common questions about buying this product.

Who is this product best for?

It is best for smart home enthusiasts, DIY builders, and professionals who need precise detection of human presence including stationary persons. Ideal for projects like automatic lighting, energy management, and security systems.

What should shoppers check before buying?

Check the detection range and field of view to ensure coverage for your intended space. Also verify voltage requirements and interface compatibility (e.g., UART, I2C) with your microcontroller or hub.

What is the best price for LD2420 24GHz Human Presence Sensor?

The best current price for LD2420 24GHz Human Presence Sensor is £3.50 at The Pi Hut. We track prices daily across multiple stores.

Is now a good time to buy LD2420 24GHz Human Presence Sensor?

The price is around the historical average. Check our price history chart for trends.

How often does the price of LD2420 24GHz Human Presence Sensor change?

We update prices daily. Use our price history chart to see how the price has changed over time and set a price alert to be notified when it drops.