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  3. WH46D 7-in-1 Air Quality Sensor with LCD Display, NDIR CO2 / PM1.0 / PM2.5 / PM4.0 / PM10 / Temperature / Humidity Sensor

WH46D 7-in-1 Air Quality Sensor with LCD Display, NDIR CO2 / PM1.0 / PM2.5 / PM4.0 / PM10 / Temperature / Humidity Sensor

15% OFF Code: DAD2025 (June 10 ~ June 25 PST)

$139.99 USD
$139.99 USD $139.99 USD
Shipping is calculated at checkout. (For EU customers: For parcels shipped via [Standard], VAT is included.)
Radio Frequency: North America MHz 915
How to choose frequency
$139.99 USD
$139.99 USD $139.99 USD

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.

Comparison of different models

Model WH41 WH43 WH45 WH46 WH46D
LCD Display √
CO₂ √ √ √
PM1.0 √ √
PM2.5 √ √ √ √ √
PM4.0 √ √
PM10 √ √ √
Temperature & Humidity √ √ √
Solar power supply √
Power cord supply √ √ √ √ √
Battery backup √ √ √ √ √
Sensor ID Name 4 CH PM2.5 AQIN


Specifications

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

Parts List

1 x WH46D Air Quality Monitor
1 x USB to Type-C Cable
1 x Manual

Manual & Firmware Download

Compatibility Instructions

for all ecowitt network consoles

Please follow the table to make sure you choose the right sensors and concoles before check out.
Note: The "1/4/8/16" means 1 console supports 1/4/8/16 sensors
( excluding accessories )

Customer Reviews

Based on 7 reviews
71%
(5)
29%
(2)
0%
(0)
0%
(0)
0%
(0)
D
Dario Fortini

works great

d
dietrichbecker
Seems to work

The sensor connected quickly to the station, and all values ​​are displayed; they are within the expected range. An exact comparison is not possible, because I don't have calibrated measuring devices.

M
Mike
It's OK

Hard to say how accurate it is. Nothing to compare it too. But it seems to work OK. The Temp/Humidity sensor seems within reason and matches my base line measurement sensor within the acceptable ranges, BUT ... you CANNOT Calibrate offsets for Temp and Humidity with this WH46D inside the app or WebUI. Very Odd. This needs to be a future Update.

M
Martin Sýkora
great but unfortunately only inside

When ordering, I didn't notice that it wasn't for the outdoors. That's why I'm ordering another wh41. Otherwise, I was pleasantly surprised by the speed of its response. Just blow on it or call it and your CO2 will go above 2000. I'm happy with all the sensors I bought and I praise the amazing feature that I put batteries in the sensors and everything works without any adjustments.

P
Peter
Gutes Meßgerät für die Raumluft

Als Fan von Ecowitt habe ich mir den Luftqualitätsmesser WH46D mit Display gekauft. Er zeigt viele Raumluftwerte an, die ich aber nicht kontrollieren kann.
Weil wir einen Ethanolofen betreiben, wollte ich gerne die Raumluft monitoren.
Nicht ganz billig, aber wichtig. Der Sensor muß mit USB-Spannung betrieben werden und hat zwei AA-Batterien als Ausfallsicherung. Ein USB-Netzteil ist nicht dabei. Die Anzeige über die Ecowitt-App oder die Konsole 2560c reicht eigentlich aus. Das LCD-Display des Sensors ist nicht unbedingt nötig. Von mir eine Kaufempfehlung.

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