Details
DESCRIPTION
The Ecowitt WH46D Indoor 7-in-1 Air Quality Monitor provides comprehensive monitoring of your indoor environment in one compact device.
It measures CO₂, PM1.0, PM2.5, PM4.0, PM10, temperature, and humidity, with clear readings shown on its built-in LCD display.
Ideal for homes, offices, bedrooms, and other indoor spaces where maintaining good air quality is important.
FEATURES
- Built-in Display: Provides real-time data display.
- 7-in-1 Measurements: Measures CO2, PM1.0, PM2.5, PM4.0, PM10, Temperature, and Humidity.
- CO2 Calibration Support: CO2 calibration available (recommended during DC power mode to conserve battery).
- Dual Power Supply: Operates on both DC and battery power.
- Unit & Display Options: Switchable between Celsius/Fahrenheit; displays air quality and CO2 concentration levels.
- Data Update Interval:
- CO2, Humidity, and Temperature: updated every 30 seconds.
- PM values: updated every 1 minute (DC power) or 10 minutes (battery power).
- Automatic Sensor Cleaning: Auto cleans sensor every 7 days with a fan to maintain clean sampling membrane.
- Environmental Compensation: Automatic compensation for temperature and humidity to stabilize CO2 readings.
- Standalone Functionality：Can be used independently or connected to console & gateway.
TECHNICAL DATA
| Model | WH46D |
| Name | CO₂ and Air Quality Monitor |
| Dimensions | 106×68×69(mm) |
| Screen Size | 63×35(mm) |
| Material of Screen | HTN |
| Material of Plastic Casing | ABS |
| Weight | 144(g) |
| Material of Plastic Casing | ABS |
| PM1.0/PM2.5/PM4.0/PM10 Mass concentration range | 0 ug/m³ to 1000 ug/m³ |
| PM1.0/PM2.5/PM4.0/PM10 Mass concentration resolution | 1 ug/m³ |
| Mass concentration precision for PM1.0 & PM2.5 | ±10ug/m³ (0 ug/m³ to 100 ug/m³); ±10 % (100 ug/m³ to 1000 ug/m³) |
| Mass concentration precision for PM4.0 & PM10 | ±25 ug/m³(0 ug/m³ to 100 ug/m³) ±25 % (100 ug/m³ to 1000 ug/m³) |
| CO₂ measuring range | 0 to 40000 ppm |
| CO₂ measurement resolution | 1 ppm |
| CO₂ measurement accuracy | ±(50 ppm + 5% of reading) when 400 to 2000 ppm |
| CO₂ Accuracy drift per year | ± (5ppm + 5% of reading) |
| Temperature Metering Range | -10°C to 60°C (14°F to 140°F) |
| Temperature Metering Resolution | 0.1°C ( 0.1°F) |
| Temperature Metering Accuracy | ±0.8°C (1.5°F) when 15°C to 35°C (59°F to 95°F); ±1.5°C (2.7°F) when -10°C to 60°C (14°F to 140°F) |
| Tempreature Accuracy drift per year | < 0.03°C |
| Humidity Metering Range | 1%RH to 99%RH |
| Humidity Metering Resolution | 1%RH |
| Humidity Metering Accuracy | ± 6%RH when 15°C to 35°C (59°F to 95°F); ± 9%RH when -10°C to 60°C (14°F to 140°F) |
| Humidity Accuracy drift per year | < 0.25%RH |
| Automatic cleanup interval | 2 days |
| Reading Update Interval | About 1 minute |
| RF Connection Frequency | 920/915/868/433MHz (depending on local regulations) |
| RF Wireless Range | Over 100 meters (in open areas) |
| Operating Temperature Range | -10°C to 50°C(14℉ to 122℉) |
| Power Supply | 2*1.5AA Batteries or USB 5V |
| Battery Life | 2 days |
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