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

$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

[WH46D Manual](https://s.ecowitt.com/F9VBJC)

Compatibility Instructions

for all ecowitt network consoles

Please refer to the table to choose the correct sensors and consoles before checkout.
Note:
1) "1/4/8/16" = max number of sensors supported per console (excluding accessories).
2) Upload only = sensor readings shown only in the Ecowitt app and cloud (www.ecowitt.net).
3) Firmware (e.g. V1.9.6 / V2.0.2) = gateway/console must run this version or newer.