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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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Description
WSD400H WiFi Temperature Humidity Sensor Abnormal Alarm Real Time Monitor Compatible with Alexa / Google Assistant (No Battery)Real time Temperature and Humidity MonitoringView accurate temperature and humidity data in real time, ensuring optimal environmental conditions. Customizable AlertsSet upper and lower limits for temperature and humidity, receiving instant notifications when thresholds are exceeded. Smart Home IntegrationCompatible with Alexa and Google Assistant for seamless integration into your smart home ecosystem. Audible AlarmFeatures a built in alarm with sound
- 【Real-time Temperature and Humidity Monitoring】View accurate temperature and humidity data in real-time, ensuring optimal environmental conditions.
- 【Customizable Alerts】Set upper and lower limits for temperature and humidity, receiving instant notifications when thresholds are exceeded.
- 【Smart Home Integration】Compatible with Alexa and Google Assistant for seamless integration into your smart home ecosystem.
- 【Audible Alarm】Features a built-in alarm with sound levels exceeding 55dB/1M for clear, attention-grabbing alerts.
- 【App Connectivity】Receive push notifications through the Tuya app, allowing remote monitoring and control.
- 【Historical Data Access】Review past temperature and humidity records for trend analysis and long-term monitoring.
Specifications:
- USB input: DC5V
- Battery: DC3V LR03 AAA battery*2 (not included)
- Quiescent current: ≤75uA
- Alarm current: ≤135mA
- Low power undervoltage: ≤2.4V
- WiFi: 2.4GHz, 802.11 b/g/n
- Detection temperature: -10℃-60℃
- Detection humidity: 0-100%RH
- Alarm sound pressure: ≤55db/1m
- Installation method: wall-mounted/desktop placement
- Working temperature: -10℃-60℃
- Working humidity: ≤90%RH
Package included
- 1 x WiFi Temperature Humidity Sensor
- 1 x English and Chinese User Manual
Specifications
| Brand | N/A |
| Certificate | CE |
| Color | As Shown |
| Packaging Type | Colored Box |
| Plug Type (For Supply) | N/A |
| User Manual (Language) | English and Chinese |
| Gross Weight | 0.123kg |
| Volume Weight | 0.066kg |
| Package Length | 7.800cm |
| Package Width | 7.600cm |
| Package Height | 5.000cm |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Good enough
Color: Oak, Size: 24" W x 7" D x 1.5" H (2 pieces)
It’s a cheap shelf but it works for a starter apartment
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
★★★★★ 5
Easy and good looking.
Color: Black, Size: 24" W x 7" D x 1.5" H (2 pieces)
Installation is pretty straight forward. Small level is included to make sure they are put up correctly. They look good up on the wall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
★★★★★ 1
Shelf wobbles and sits at an inclined angle after mounted.
Color: Oak, Size: 28" W x 7" D x 1.5" H (2 pieces)
While the shelf looks nice, it didn't work as it should. I anchored and screwed in the black metal bracket pretty well, and it stays perpendicular to the wall and doesn't wiggle or wobble one bit. But as soon as I slide in the wooden shelf, the whole shelf wiggles and settles at an inclined angle. Putting in the two screws down on the shelf did nothing to help with the wobbliness. I may have to glue down certain big decoration in fear of it sliding down the shelf, though that may be a bit overcautious and exaggerating.
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Reviewed in the United States on November 20, 2025
★★★★★ 5
Very good quality
Color: Black, Size: 24" W x 7" D x 1.5" H (2 pieces), Color: Black, Size: 24" W x 7" D x 1.5" H (2 pieces)
Very good quality
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Reviewed in the United States on February 4, 2026
★★★★★ 5
Easy install.
Color: Black, Size: 32" W x 7" D x 1.5" H (2 pieces)
Easy install, and very pretty. Can't go wrong with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
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