Includes all taxes

Wireless Multi-channel Thermometer Hygrometer
Ecowitt WN31 Thermometer & Hygrometer measures temperature & humidity and can view the current temperature and humidity on the LCD display. The data can be streamed by Ecowitt GW1100 Wi-Fi Gateway, HP2551...( These devices are all sold separately ) and can be viewed on our WS View Plus/ Ecowitt APP after the Wi-Fi configuration done.

Remote APP Monitoring & Email Alerts
If you want to view the multi-channel sensors' data on your mobile application, you need to pair this WN31 thermo-hygrometer sensor with Ecowitt GW1100 Wi-Fi Gateway, or HP2550, HP2560, WS3800, WS3900, WN1980 etc consoles(These Devices are sold separately) after Wi-Fi configuration. Supports uploading the data to free Ecowitt Weather Server(ecowitt.net) to view all the data graph / download history records / set e-mail alerts for all the sensors on the website.


Supports up to 8 channels & 100M Transmission Range
Ecowitt WN31 thermo-hygrometer gauge allows you to track temperature and humidity at up to 8 locations (additional sensors are sold separately). They can be placed at your living room/bedrooms/bathroom/basement/garage/guitar room/baby room and etc; each channel number can be customized on your practical requirements by dialing the dip switches.
The wireless transmission range is up to 100m/328ft in the open field, allowing you to use it in different places. If you want to install the sensor outside, it's recommended to install it inside a solar radiation shield to obtain best accuracy and protection. The sensor data will be transmitted every 60 seconds.
Note: WN31's temp & humidity can't be used as "outdoor temp & humidity", only sensor array & WN32 can.


Easy to Use
2 pcs AA batteries(NOT included) powered. Dialing the 1st to 3rd dip switches to customize the channel number; while dialing the 4th dip switch to freely switch between β and β. If you want to pair this device with GW1100 wi-fi gateway(sold separately), please refer to the GW1100 quick start to get the wi-fi configuration procedures.


Specifications:
Temperature Range |
(Probe) -40°C β 60°C (-40°F β 140°F); (LCD Display) -10°C β 60°C (14°F β 140°F) |
Temperature Resolution |
0.1°C or 0.1°F |
Temperature Accuracy |
± 1°C ( ±33.8°F ) |
Humidity Range |
10% ~ 99% |
Humidity Resolution |
1% |
Humidity Accuracy |
± 5% |
Sensor Reporting Interval |
about 60 seconds |
Sensor Size |
123 x 42 x 14 mm |
Power |
2 x AA batteries ( NOT included ) |
Frequency |
North America:915MHz; Europe: 868MHz; Other areas: 433MHz |
Note:
The sensor actually can measure from -40β~140β(-40β~60β οΌand send the data to receiver. However the screen display of the sensor might not work below 14β(-10βοΌ.
Package List:
1 x WN31(AKA WH31) Multi-channel Temperature and Humidity sensor
1 x User Manual
FAQ:
Q1: What if I purchased the wrong frequency?
A: For example, if you are in Europe and have already mistakenly purchased the 915 MHz products.
Although the products sold in European are 868 MHz, it is ok for you to use them in Europe as long as the sensors and the gateway/receivers are the same frequency(for example, they are 915 MHz).
However, the hiding problem is that once you mistakenly purchased 1 device with 915 MHz frequency at first, when you need to purchase other ecowitt devices, you need to purchase them with the same frequency too. Only in this way can make sure the sensors and the receivers work together.
Q2: What are the differences between WN31 and WH31?
A: They are the same products and there is no difference in terms of functionality.
Q3: What are the differences between WN31 and WN32?
A: One WiFi gateway/receiver can only pair with one WN32 sensor, while can pair with up to 8 WN31 sensors.
The WN31 sensor data will display "Multi-channel Temperature and Humidity" on the WS View Plus/ Ecowitt APP app when work with WiFi gateway, while the WN32 sensor data can display "Outdoor Temperature and Humidity".
Q4: Can the WN31 sensor freely switch β/β?
A: Of course, the WN31 sensor is equipped with 4-digit dip switch and the last dip switch is to switch between β and β.
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1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
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Estimated delivery times vary depending on your location:
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International Shipping: 7–15 business days
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1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
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Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
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To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
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