Can this connect with smart humidifier on its own or does it need the wifi gateway?

It can be used as a stand-alone Bluetooth humidity sensor. And it can be connected to the Govee humidifier.

why they stopped working one by one

The single AAA battery typically only last 4 months per the manual. Mine barely made it to 3 months and the battery level displayed in the app was not accurate.

Do we need to purcahse the cloud service?

I've been using mine for over a month just about 24/7 in a grow tent. At the moment im not using any app (alexa). Im just plug n use. So long story short i would say no cloud necessary...lol

What is the battery life? i installed 3 of these end of november and 2 of the 3 died end of december. not great for remote rental property.

The temperature sensor's battery life is about 4 months. Low temperature will shorten the battery life. We promise a 12-month warranty. Need any help, feel free to contact us via Amazon message center.

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Govee Hygrometer Thermometer 3 Pack H5100, Mini Bluetooth Humidity Sensor

Govee Hygrometer Thermometer 3 Pack H5100, Mini Bluetooth Humidity Sensor

Product ID: 625386773

Details

Battery Description
Alkaline
Brand
Govee
Colour
White
Item Weight
0.04 Kilograms
Product Dimensions
24W x 56H

📏±0.54°F accuracy

📶Bluetooth + Wi-Fi ready

🗄️2-year data export

$U5231

Duties & taxes included

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Stay ahead of the curve—monitor your world with pinpoint precision!

PRECISION SWISS SENSORS - Experience industry-leading accuracy with ±0.54°F and ±3%RH measurements, ensuring your environment is always perfectly tracked.
COMPACT DISCREET DESIGN - Miniature size fits effortlessly in tight spaces—from potted plants to freezers—blending functionality with subtlety.
SEAMLESS REMOTE MONITORING - Connect via Bluetooth or Wi-Fi Gateway for real-time temp & humidity updates anywhere—never miss a critical change.
SMART ALERTS ON YOUR PHONE - Set custom temperature and humidity thresholds and get instant notifications to prevent costly spoilage or discomfort.
ROBUST DATA STORAGE EXPORT - Access 20 days of cloud-stored data and export up to 2 years of historic records for deep insights and trend analysis.

The Govee Hygrometer Thermometer 3 Pack H5100 combines compact Swiss-made sensors with Bluetooth and optional Wi-Fi connectivity to deliver highly accurate temperature and humidity monitoring. Designed for versatile use in homes, freezers, and small spaces, it offers smart alert notifications, 20-day cloud data storage, and 2-year export capabilities, empowering professionals to safeguard sensitive environments effortlessly.

Specifications

ASIN	B09DPCW47P
Battery Description	Alkaline
Best Sellers Rank	#209,516 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #281 in Indoor Thermometers
Brand Name	Govee
Colour	White
Customer Reviews	4.4 4.4 out of 5 stars (1,250)
EU Spare Part Availability Duration	2 Years
Item Dimensions W x H	24W x 56H Millimeters
Item Weight	0.04 Kilograms
Manufacturer	Govee
Model Number	H5100
Mounting Type	Tabletop
Number of Items	3
Number of Packs	3
Operating Humidity	0%-99%RH
Part Number	B5100001
Temperature Accuracy	±0.54 Degrees Fahrenheit
Temperature Reading Accuracy	plus_minus_0_point_3_degrees_celsius
Upper Temperature Rating	140 Degrees Fahrenheit

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