# PIR motion sensor HEIMAN WS3MS Wi‑Fi Tuya compatible — passive infrared occupancy detector

**URL:** https://aio.lv/en/product--heiman-ws3ms--11006163
**Data updated:** 2025-12-03 17:02 (EET)
**Category:** Smart Sensors
**Manufacturer:** HEIMAN
**Manufacturer code:** WS3MS
**EAN:** 5906168433498
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--heiman-ws3ms--11006163

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

HEIMAN WS3MS is a PIR motion sensor with Wi‑Fi and Tuya compatibility for detecting human movement using a passive infrared detector. Designed for integration with smart home platforms that support Tuya, it provides presence detection for lighting, security automation and energy saving. Easy to install and suitable for residential and small commercial spaces.

## Long description

Heiman WS3MS Tuya smart PIR WiFi motion sensor is a compact indoor motion detector that connects via 2.4 GHz WiFi and sends instant notifications to your mobile device. The sensor uses an infrared PIR element with automatic threshold adjustment and automatic temperature compensation to maintain stable detection performance over a wide temperature range. It supports pet immunity for animals up to 11 kg and has a detection range up to 9 m with a 90° coverage angle. Powered by one CR123A battery (DC 3V), the WS3MS is intended for simple, tool-free installation and blends into modern interiors.
Advantages
The Heiman WS3MS provides real-time motion alerts over WiFi and keeps sensitivity stable through automatic threshold adjustment and temperature compensation. Its pet immunity reduces false alarms from small animals, while the 9 m detection distance and 90° angle allow monitoring of larger indoor areas. Installation is straightforward with stick-and-play mounting, and the sensor’s compact design fits most interiors.
Key specifications
Manufacturer: Heiman
Model: WS3MS
Operating voltage: DC 3V (1× CR123A battery)
Detection distance: ≤9 m (at 25°C)
Detection angle: 90°
Sensor type: Infrared sensor (PIR)
Network: WiFi 2.4 GHz
WiFi protocol: IEEE 802.11 b/g/n
Operating temperature: -10°C to +50°C
Operating humidity: ≤95% RH (non-condensing)
Pet immunity: up to 11 kg
Dimensions: 80 mm × 28.5 mm
How to use
Place the Heiman WS3MS on a stable surface or mount it using the supplied stick-and-play adhesive in the area you want to monitor, at a height and angle that provide unobstructed coverage of the target zone. Insert one CR123A battery (DC 3V) following polarity marks, power the device, and complete WiFi setup using the compatible Tuya app or an integrated smart home platform over 2.4 GHz. After connecting, test detection by walking through the monitored area to confirm notifications and adjust position if necessary.
Recommendations
For reliable operation, install the sensor away from direct air flows (vents, fans) and strong heat sources, and avoid placing it behind glass or objects that obstruct the infrared path. Use the Tuya-compatible app for firmware updates and sensitivity settings, and replace the CR123A battery when low battery notifications appear.

## FAQ

### How much does the HEIMAN WS3MS PIR motion sensor Wi‑Fi Tuya cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HEIMAN products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HEIMAN service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11006163/61653187_large.webp