1. Introduction
Thanks for your purchasing of this integrated multifunction indoor air quality monitoring sensor. It measures PM2.5 / PM10 / CO2 / Temperature / Humidity. To ensure the best product performance, please read this manual and retain it for future reference.
2. Unpacking
Open your box and inspect that the contents are intact (nothing broken) and complete (nothing missing). Inside you should find the following:
| QTY | Item Description |
| 1 | Particle Detection Sensor (PM2.5 / PM10 / /CO2 / Temperature / Humidity 5-In-1) |
| 1 | USB Cable |
| 1 | User Manual |
Table: Package content
If any component is missing from the package, or broken, please contact our Customer Service department to resolve the issue.
Features
Particle Detection Sensor
- Measures indoor PM2.5, PM10, CO2 concentration, Temperature and Humidity every 60 seconds when powered with USB or detecting every 10 minutes when powered with batteries only.
- USB connection for indoor use only
- CO2 value calibration function available on the device
- PM2.5 value Calibration function available when paired with GW1000/HP2551/HP3500/HP3501
- Long wireless range, up to 300 feet (100 meters) in open areas
When paired with a GW1000 Wi-Fi Gateway:
- Monitor live sensor data on the Live Data page
of the WS View app (requires the gateway and your phone using the same Wi-Fi network)
- Displays current PM2.5 / PM10 concentration/AQI and 24H AQI and air quality level index on the Live Data page of the WS View app
- Displays current CO2 concentration and 24H average CO2 concentration on the Live Data page of the WS View app
- Displays temperature and humidity data where the sensor located
- Calibration function available for PM2.5 value
Sensor Set Up
Remove the battery door on the base of the air quality sensor as shown in Figure:
| No | Description | No | Description |
| 1 | Red LED Indicator (RF transmission) | 3 | Battery Compartment Cover |
| 2 | AC Adapter USB Power Port | 4 | Battery Compartment |
Insert two AA batteries and close the battery door.
Note: The batteries (not included) are mainly for backup purpose.
- Connect the USB cable between the sensor and an AC adapter(not included).
Note: After inserting the batteries or connecting AC power, the sensor LED indicator will light for 3 seconds – flash once after 20s , and then flash once per 1 minute thereafter (10 minutes if only powered by batteries). Each time it flashes, the sensor is transmitting data.
Sensor Installation
Before install the sensor into its permanent location, you may go to Section 6 to configure with the gateway first. Once the sensor has been confirmed working correctly, then you can go back here.
Place the sensor on a horizontally surface. Note that the vents must be clear of any obstructions, and we recommend placement away from other electronic devices to prevent interference. Do not place on a metal table to prevent RF signal loss.
Note: This sensor is designed for indoor use only.
Wireless communication is susceptible to interference, distance, walls and metal barriers. We recommend the following best practices for trouble free wireless communication.
Electro-Magnetic Interference (EMI). Keep the console several feet away from computer monitors and TVs.
Radio Frequency Interference (RFI). If you have other devices using the same RF frequency and communication is intermittent, try turning off these other devices for troubleshooting purposes. You may need to relocate the transmitters or receivers to avoid intermittent communication.
Line of Sight Rating. This device is rated at 300feet line of sight (no interference, barriers or walls) but typically you will get 100feet maximum under most real-world installations, which include passing through barriers or walls.
Metal Barriers. Radio frequency will not pass through metal barriers such as aluminum siding. If you have metal siding, align the remote and console through a window to get a clear line of sight.
Wi-Fi Configure with gateway:
This Particle Detection Sensor doesn’t has a display function and you need to use our WS View App to view the data on your mobile application after pairing this device with our GW1000 Wi-Fi Gateway or HP2551/HP3500/HP3501/WH0295 console (all sold separately).
Pair with Gateway
If GW1000 has been in operation, and you have never had any WH45 sensor setup before, just power up the sensor and GW1000 will pick sensor data automatically.
If a WH45 sensor has been hooked on GW1000 before, and you have a new sensor to replace the old one, just power off the old sensor and power on the new sensor, open the APP: WS View, tap the device and go to sensor ID page, locate the WH45 sensor, select “Register”, then the gateway will erase the previous registered sensor and have the new sensor paired.
Appendix
Air Quality Index (AQI) for the PM2.5 Concentration (24hr)
| AQI | Air Pollution Level | PM2.5 Concentration ug/m3 |
| 0 – 50 | Good | 0.0-12.0 |
| 51 -100 | Moderate | 12.1-35.4 |
| 101-150 | Poor | 35.5-55.4 |
| 151-200 | Unhealthy | 55.5-150.4 |
| 201-300 | Severe | 150.5-250.4 |
| 300+ | Hazardous | 250.5+ |
Air Quality Index (AQI) for the PM10 Concentration (24hr)
| AQI | Air Pollution Level | PM2.5 Concentration ug/m3 |
| 0 – 50 | Good | 0-54 |
| 51 -100 | Moderate | 55-154 |
| 101-150 | Poor | 155-254 |
| 151-200 | Unhealthy | 255-354 |
| 201-300 | Severe | 355-424 |
| 300+ | Hazardous | 425+ |
Specification
| Measurement | Range | Accuracy | Resolution |
| PM 2.5 | 0~999ug/m3 | >100ug/m3, ±15% <100ug/m3, ±15ug/m3 | 1ug/m3 |
| PM 10 | 0~999ug/m3 | >100ug/m3, ±25% <100ug/m3, ±25ug/m3 | 1ug/m3 |
| CO2 | 0- 40000ppm | 400- 10000ppm ±(30ppm ±3%) | 1ppm |
| Temperature | -40°C – 60°C (-40°F – 140°F) | ± 1°C, or ± 2°F | 0.1°C, or 0.1°F |
| Humidity | 0%~99% | ± 5% | 1% |