Can i use wh32 for wh31? and 8 sensor max. for one gateway?

Hi, you can't use the WH32 for WH31. Here are the differences between the two sensors: 1. Only the WH32 sensor data can display "Outdoor Temperature and Humidity" on the WS View app when work with GW1000. 2. The WH31 sensor data will display "Multi-channel Temperature and Humidity" on the WS View app when work with GW1000. 3. One GW1000 can only receive one WH32 sensor data. 4. One GW1000 can receive up to 8 WH31 sensor data. 5. The WH32 sensor data can be uploaded to weather underground, while the WH31 could not. 6. Both the WH32 and WH31 data can be uploaded to ecowitt.net. 7.The WH31 can work with HP2551/HP3500/HP3501 Any other question, please let us know at support@ecowitt.com.

Is this sensor ok for outdoor use?

Eccowitt has a sensor for outdoor use that you should buy. (WH32) The WH31 will take channel 1 to 8, while the WH32 is independent and has it own channel assignment so leaving channel 1 to 8 open for other temp/humidity sensors. Physically WH31 and WH32 are the same case.

Has anyone had success with a WH31 in a freezer or refrigerator?

Hi, you can place the WH31 in a freezer or refrigerator, since the working temperature for it is -40C to 60C(-40F to 140F). Any other question, please contact us at support@ecowitt.com

Can this sensor be calibrated? Thanks!

Hi, yes, you can calibrate it on the WS View app: On Live Data press More - select Calibration - select Multi CH T&H Calibration Then you can set the value you want. Any question, please contact us at support@ecowitt.com.

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WN31 Wireless Multi-Channels Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Dip Switches to Switch ℃/℉(Not use as Outdoor temperautre and Humidity Sensor)

Product ID: 102369162

Details

Brand
ECOWITT
Color
1X WH31 Multi
Connectivity Technology
Wi-Fi 915 MHz
Material
Plastic
Number of Batteries
2 AA batteries
Power Source
Battery

📊LCD real-time display

📡8 wireless channels

🔋1+ year battery life

£38.44

Duties & taxes included

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Sold byAmazon Isle of ManDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Stay ahead indoors with precision multi-zone climate control!

LONG LASTING POWER - Runs on 2 AA batteries with over a year of uninterrupted performance.
INTUITIVE LCD DISPLAY - Clear, easy-to-read screen with quick ℃/℉ toggle via dip switches.
MULTI CHANNEL MASTERY - Track temperature & humidity across 8 customizable indoor zones effortlessly.
SEAMLESS WIRELESS SYNC - Connects via 915 MHz frequency to Ecowitt Wi-Fi gateways for real-time app monitoring.
SMART ALERTS HISTORY - Set email notifications and review detailed historical data through Ecowitt’s free weather server.

The ECOWITT WN31 is a wireless indoor thermometer and hygrometer sensor supporting up to 8 channels, delivering accurate temperature (±1°C) and humidity readings on a crisp LCD. It operates on 915 MHz frequency, pairs with Ecowitt Wi-Fi gateways for remote app monitoring, and offers customizable channel settings and °C/°F switching. Powered by 2 AA batteries, it boasts over a year of battery life, making it ideal for comprehensive indoor climate tracking across multiple rooms.

Specifications

ASIN	B07JLRJRLM
Additional Features	8 Channels, Temperature and Humidity
Best Sellers Rank	#43,985 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #70 in Weather Stations #567 in Scanners & Testers
Brand Name	ECOWITT
Color	1X WH31 Multi Channel Temp & Humidity Sensor
Connectivity Technology	Wi-Fi, 915 MHz
Customer Reviews	4.6 4.6 out of 5 stars (885)
Display Type	LCD
Frequency	915 MHz
Included Components	Instruction Manual
Is Used Where	Indoor
Item Dimensions D x W x H	0.55"D x 4.84"W x 0.55"H
Manufacturer	ECOWITT
Material Type	Plastic
Model	WN31
Number of Batteries	2 AA batteries required.
Number of Items	1
Number of Packs	1
Part Number	FG-WH37BN-ECO1
Power Source	Battery Powered
Recommended Uses For Product	Home
Sensor Technology	Wireless
Specific Uses For Product	Humidity, Temperature
Style Name	WN31
Temperature Accuracy	± 1°C
Temperature Reading Accuracy	plus_minus_1_degree_celsius
UPC	711639641228
Unit Count	1 Count
Upper Temperature Range	140 °F

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