---
product_id: 441289942
title: "WH41A PM 2.5 Air Quality Outdoor Sensor 868MHz"
brand: "aercus instruments"
price: "KSh2661"
currency: KES
in_stock: true
reviews_count: 1
url: https://www.desertcart.co.ke/products/441289942-wh41a-pm-2-5-air-quality-outdoor-sensor-868mhz
store_origin: KE
region: Kenya
---

# 868MHz wireless range up to 100m Solar + USB rechargeable power PM2.5 detection 0-999µg/m³ with ±10µg/m³ accuracy WH41A PM 2.5 Air Quality Outdoor Sensor 868MHz

**Brand:** aercus instruments
**Price:** KSh2661
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live better — stay ahead of the air quality curve!

## Quick Answers

- **What is this?** WH41A PM 2.5 Air Quality Outdoor Sensor 868MHz by aercus instruments
- **How much does it cost?** KSh2661 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/441289942-wh41a-pm-2-5-air-quality-outdoor-sensor-868mhz)

## Best For

- aercus instruments enthusiasts

## Why This Product

- Trusted aercus instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Power Flexibility:** Solar panel and USB recharge keep your sensor powered without hassle.
- • **Seamless Wireless Connectivity:** 868MHz frequency ensures reliable data transmission up to 100 meters.
- • **Precision Air Quality Monitoring:** Track PM2.5 levels with industry-grade accuracy for healthier spaces.
- • **Multi-Zone Environmental Insights:** Add up to 8 sensors for comprehensive air quality mapping across your home or office.
- • **Real-Time Data at Your Fingertips:** View live air quality updates on WeatherMaster console or WS-View app anytime, anywhere.

## Overview

The WH41A PM 2.5 Air Quality Outdoor Sensor by Aercus Instruments offers precise particulate matter detection (0-999µg/m³) with ±10µg/m³ accuracy, transmitting data wirelessly at 868MHz up to 100 meters. Powered by rechargeable AA batteries with solar and USB options, it integrates seamlessly with WeatherMaster or Ecowitt systems, enabling multi-zone monitoring for proactive environmental awareness.

## Description

The Aercus Instrument Particulate Matter (PM2.5) Air Quality sensor can be added to as Aercus Instruments WeatherMaster (cannot be used on its own) and measures the quantity of particles 2.5 micrometres or smaller in the air. Up to 8 sensors can be added giving you a great picture of external conditions in different zones of your home, office or industrial unit. Data can be viewed on your WeatherMaster console or using the WS-View App. This can also be used with a 868MHz Ecowitt GW1000 (sold separately). This device is powered with 2x AA 1.2V Ni-MH rechargeable batteries (not included), and requires recharging every 2 weeks.

## Features

- Air Quality Index shows six levels on WeatherMaster or Ecowitt console or App
- Battery level indicator
- Solar panel and USB recharge port
- PM2.5 range: 0-999µg/m3
- PM2.5 resolution: 1µg/m3
- PM2.5 accuracy: 0-100 µg/m3 ±10 µg/m3 or 100-500 µg/m3 ±10% µg/m3
- Sensor reporting interval: 10 minutes
- Range: Up to 100m (line of sight), 30-40m in real-world conditions
- Frequency: 868MHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Aercus Instruments |
| Part number | WH41AUK |
| Item Weight | 250 g |
| Package Dimensions | 11.3 x 8.7 x 7.5 cm; 250 g |
| Batteries | 2 AA batteries required. |
| Manufacturer reference | WH41AUK |
| Colour | gray |
| Style | Modern |
| Power source type | Battery Powered, Solar Powered |
| Display style | LCD |
| Special Features | Lightweight |
| Included components | WH41A PM 2.5 Outdoor Sensor |
| Batteries included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** Aercus Instruments
- **Recommended uses for product:** Garden
- **Power source:** Battery Powered, Solar Powered
- **Special feature:** Lightweight
- **Connectivity technology:** USB
- **Number of batteries:** 2 AA batteries required.
- **Style:** Modern
- **Colour:** gray
- **Included components:** WH41A PM 2.5 Outdoor Sensor
- **Are batteries included:** No

## Images

![WH41A PM 2.5 Air Quality Outdoor Sensor 868MHz - Image 1](https://m.media-amazon.com/images/I/41j8ef7EP3S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Quality product.
*by I***E on 19 January 2025*

Does the job well. A great addition to my Ecowitt devices.

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**Shop now:** [https://www.desertcart.co.ke/products/441289942-wh41a-pm-2-5-air-quality-outdoor-sensor-868mhz](https://www.desertcart.co.ke/products/441289942-wh41a-pm-2-5-air-quality-outdoor-sensor-868mhz)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-21*