Motion sensors

Motion sensors are electronic devices designed to detect physical movement within a specific area and trigger a corresponding action, such as turning on lights or activating an alarm. These sensors utilize various technologies, including infrared, ultrasonic, or microwave detection, to monitor their surroundings continuously. They are widely integrated into modern building management systems to enhance energy efficiency by ensuring lights are only active when a space is occupied. Beyond lighting control, these devices serve as essential components in security systems to monitor unauthorized access to premises. By automating routine tasks, motion sensors provide convenience and contribute to a more responsive environment in both residential and commercial settings.

Use cases of motion sensors

• Automated lighting control in hallways, staircases, and outdoor areas.
• Security and surveillance systems to detect intruders.
• Energy management by turning off HVAC systems in unoccupied rooms.
• Hands-free operation of doors or sanitary equipment in public facilities.

Types of motion sensors

• Passive Infrared (PIR) sensors: Detect heat signatures emitted by moving objects.
• Microwave sensors: Emit microwave pulses and measure the reflection to detect motion.
• Ultrasonic sensors: Use sound waves to detect movement within a space.
• Dual-technology sensors: Combine two or more detection methods to reduce false alarms.

Key features to consider

• Detection range and field of view: Determines the area the sensor can cover.
• Sensitivity settings: Allows adjustment to prevent false triggers from pets or small movements.
• Time delay: Configures how long the device remains active after motion stops.
• Ambient light threshold: Ensures the sensor only activates when natural light is insufficient.

How to choose motion sensors

When selecting a motion sensor, first identify the primary purpose, such as lighting control or security. Consider the installation environment, as outdoor sensors require higher IP ratings for weather resistance compared to indoor models. Evaluate the detection range required for the specific room size to ensure full coverage without blind spots. Check the power source options, choosing between hardwired units for permanent installations or battery-operated versions for flexibility. Finally, verify compatibility with your existing electrical systems or smart home controllers to ensure seamless integration.

Which sensors & detectors are the most popular and affordable in 2026?

The full list of popular models at affordable prices is available on this page. In 2026, the following models show high demand and an excellent price-to-quality ratio:

• TOUCHMEMORY RW1990 Rewritable iButton Chip for 2.99€
• TOUCHMEMORY T5577 Magnetic RFID Chip for 2.99€
• SOMIS Nitrates and Nitrites Test QUANTOFIX 2pc for 4.99€
• SOMIS Aquadur Water Hardness Test Strips (2 pcs) for 4.99€
• Spamel LK293K1 Limit Switch 1NO 1NC Plastic Emergency Stop for 5.49€

Why is it worth buying sensors & detectors at AiO.lv?

At the AiO.lv online store, you can place an order at a great price with delivery across Latvia — to Riga, Daugavpils, Liepaja, Jurmala, Ventspils, and other cities, as well as throughout Europe. We offer products from leading manufacturers: APC, Panasonic, Siemens, LOGILINK, OEM, AXIS, TP-LINK, Bosch, 2N, TECHNISAT, ABUS, Hikvision, SATEL, UBIQUITI, EATON, GTV, DELOCK, QOLTEC, BLOW, Brennenstuhl. When you shop with us, you get:

• official warranty and guaranteed quality;
• convenient payment options (including installment and credit);
• fast and reliable delivery across Latvia and to any EU country.

FAQ

Where can you find a sensors & detectors with cheap prices?

You can buy cheaper at the AiO.lv online store. We offer competitive prices and regular discounts, so you always have the chance to find a great deal.

What is the delivery time for sensors & detectors?

If you place your order today, delivery will take between 1 and 5 business days depending on the chosen method.

How long is the warranty period for sensors & detectors?

Our store provides an official manufacturer’s warranty ranging from 12 to 36 months, depending on the model and brand. If needed, you can always contact our customer service department or the manufacturer’s authorized service center for support.

Are sensors & detectors purchasable with leasing?

Yes, if the selected product costs more than €50. You can learn more about installment purchase options and the terms of application on the Payment page.

Can sensors & detectors be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and throughout Europe. All product prices are shown with VAT included. In certain cases, a 0% VAT rate may apply — for example, when purchasing from other EU countries with a valid VAT number. We issue an invoice immediately after the order is placed, support BIS electronic invoices, and automatically generate all required accounting documents. To complete a purchase for a company, simply select the company profile during checkout.