Milesight WS202: the LoRaWAN® PIR & Light sensor that slashes wasted energy in smart buildings

If you want lights and HVAC to respond only when people are actually there (and only when it’s dark), the Milesight WS202 is the simple, battery-powered way to do it. It combines PIR occupancy detection with lux measurement, sends data over LoRaWAN®, and installs in minutes on walls or ceilings — perfect for offices, classrooms, corridors and plant rooms. Milesightindiott.com

Why facilities and IoT teams choose WS202

• Accurate presence + brightness in one device: detect motion up to 8 m, with 120° (H) / 100° (V) coverage and lux 1–60000 with 1-lux resolution. That means you can turn lights on only when it’s dark and occupied. Milesight ResourceMilesight

• Real-world battery life: powered by a 1650 mAh Li-SOCl₂ cell; typical life is ~4 years depending on reporting interval and spreading factor. No mains, no fuss. Milesight Resource

• Fast commissioning: tap-to-configure via NFC (iOS/Android). Set thresholds, intervals and join in minutes. Milesight Resource

• Low-latency local control: supports Milesight D2D so it can trigger wall switches/controllers directly without a gateway for instant lighting response. Milesight Resource

• Long-range, robust radio: LoRaWAN® Class A (OTAA/ABP) with line-of-sight range up to 15 km; EU868 regional profile for the UK. Milesight Resource+1

Buy in the UK: Order the WS202 PIR & Light Sensor from INDIOTT — check live pricing and delivery on the product page. indiott.com

Key specifications at a glance

• Detection area: 120° (H) / 100° (V); max 8 m range

• Light sensing: 1–60000 lux (1-lux resolution) with custom “Bright/Dark” threshold

• Radio: LoRaWAN® Class A (OTAA/ABP); EU868; internal antenna

• Battery: 1× 1650 mAh ER14335 Li-SOCl₂; ~4.2 yrs @ SF7 EU868 (typical)

• Operating environment: –20…+60 °C, 0–90% RH (non-condensing), IP30

• Size/weight: 50×50×23.8 mm, 40 g; screws or 3M tape mounting

• Extras: NFC configuration, Milesight D2D control, threshold alarms
  (See the official datasheet for the full table.) Milesight Resource+1

Best-fit UK applications (and how to deploy fast)

1) Automatic lighting control that actually saves money

Use WS202 to trigger lights when motion is detected and lux is below your threshold. Pair with Milesight WS50x/WS558 controllers for instant on/off or scenes. Result: fewer lights left burning, happier auditors. Milesight

2) Space utilisation & cleaning on demand

Publish “occupied/vacant” to your FM dashboard. Cleaners visit only used areas; energy teams spot under-used rooms and adjust schedules.

3) Security & after-hours alerts

Out-of-hours motion events can notify security or switch lights on locally via D2D for deterrence — without waking the whole BMS. Milesight Resource

Quick deployment checklist

1. Join method: Use OTAA on your LoRaWAN® network (EU868). Milesight Resource

2. Mounting height & angle: Aim for clear line-of-sight into the space; avoid pointing at HVAC vents or windows to reduce false triggers.

3. Lux threshold: Start at 200–300 lux for corridors; adjust per site policy.

4. Intervals: Balance reporting interval and battery life (e.g., 30 mins + event-based uplinks). Milesight Resource

5. Local control: If you need zero-lag switching, enable Milesight D2D to talk directly to compatible switches/controllers. Milesight Resource

Frequently asked questions

How long does the battery last?
Around 4 years at a 30-minute interval with typical daily triggers (varies with radio settings and environment). Milesight Resource

What’s the detection range?
Up to 8 metres with a wide 120°/100° field of view. Milesight Resource

Can it work without a LoRaWAN gateway for instant switching?
Yes — via Milesight D2D it can control compatible devices directly for ultra-low latency. Milesight Resource