SwitchBot Wi‑Fi Humidity Sensor 4‑Pack with Hub 2 — IP65 Outdoor/Indoor Temp & Humidity, Fast 4s Updates

SwitchBot Wi‑Fi Humidity Sensor 4‑Pack with Hub 2 is a Matter‑enabled temperature and humidity monitoring system that delivers fast, accurate environmental readings indoors or outdoors and sends smart alerts to your phone.

Keep tabs on temperature, relative humidity, dew point and VPD across the spaces that matter most — from greenhouses and wine cellars to fridges, attics and outdoor sheds. This bundle includes four compact IP65 sensors that report measurements every four seconds via the included SwitchBot Hub 2, giving you local logging, unlimited cloud history, voice control and automations using Matter, Alexa, Google, Siri Shortcuts and SmartThings.

How precise and reliable are the sensors for everyday monitoring?

The sensors use industrial‑grade Swiss Sensirion elements and deliver regular updates to keep readings current. Typical accuracy is ±1.8% RH for humidity and ±0.2°C (±0.36°F) for temperature, making them suitable for both household and hobbyist applications where consistent tracking is important.

• Sensor accuracy: ±1.8% RH, ±0.2°C / 0.36°F
• Measurement types: temperature, relative humidity, dew point, VPD, absolute humidity
• Refresh rate: every 4 seconds for near‑real‑time data
• Durability: IP65 dustproof and waterproof rating for sheltered outdoor use

What alerts, integrations and storage options are available?

Set thresholds in the SwitchBot app and receive push notifications when temperature, humidity, dew point or VPD cross your presets. Hub 2 acts as the bridge for voice assistants and Matter scenes, while onboard storage and cloud sync keep historical data accessible for trend review.

• Smart alerts for exceeded presets and scene triggers
• Voice queries and controls via Alexa, Google Home and Siri Shortcuts
• Local data: up to 68 days; unlimited cloud storage when synced
• Matter compatibility for HomeKit and cross‑ecosystem automations

Can I use these sensors outdoors or in humid environments?

Yes — the sensors are IP65 rated, so they resist dust and water spray for protected outdoor spots like patios, greenhouse vents or covered sheds. Avoid full immersion; the devices are designed for sheltered exterior placement and a variety of indoor locations.

• IP65 rating for dust and water spray resistance
• Ideal use: greenhouses, porches, garages, basements, bathrooms
• Not intended for submersion or direct water contact
• Compact form suitable for narrow or confined spaces

How do automations and remote controls improve daily routines?

Use sensor readings as scene conditions to automate HVAC, dehumidifiers, humidifiers, fans or other smart devices. With Hub 2 you can create rules that react to environmental shifts, and control appliances remotely or via voice for faster responses to temperature or humidity changes.

• Trigger AC, dehumidifiers or fans from VPD or humidity thresholds
• Combine readings with SwitchBot Bot, Curtains, Lock and Blind Tilts for integrated actions
• Control IR appliances via Hub 2’s smart learning remote feature
• Access sensors remotely through the SwitchBot app and voice assistants

Who this is for: hobbyists, gardeners, wine collectors and homeowners who need reliable environmental data across multiple locations. This 4‑pack with Hub 2 is well suited for people who want a single, connected system to monitor indoor and sheltered outdoor spaces, build automations with Matter, and receive timely alerts to protect plants, instruments, food and stored items.