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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
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Radio Frequency: North America MHz 915
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ecowittWH0295 Air Quality Monitor, with WH45 PM2.5/ PM10/ CO₂/ Temperature/Humidity 5-in-1 Indoor Air Quality Sensor and Display
WH0295 - ecowitt (7593188425890)
$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

 

Compatible gateways / consoles (Wi-Fi and/or Cellular): GW1100/GW1200/GW2000/GW3000/WS6210/HP2550/HP2560/HP3500/WS3800/WS3820/WS3900/WS3910/WN1920/WN1980/WN1820/WN1821/WN1900/WN1910/WN1700

Note:
1. The sensor may share the same channels with other sensors of the same type.

2. Some data is cloud-only and not available on compatible consoles.

3. Compatibility may change with product updates. Please refer to the latest compatibility table(at the bottom of the product page) or contact us for confirmation.

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.