SwitchBot Hygrometer Thermometer 3-Pack — IP65 Weatherproof, 2‑Year Data Storage

SwitchBot IP65 Hygrometer Thermometer 3-Pack is a compact, weatherproof wireless sensor set that monitors temperature, humidity, dew point, VPD and absolute humidity with long battery life and cloud-ready data logging.

This trio of SwitchBot sensors combines an IP65-rated shell with a Swiss Sensirion sensing core to deliver fast, accurate environmental readings both indoors and outdoors. Each sensor samples every 4 seconds, connects up to 394 ft (line of sight) via Bluetooth, and stores up to 68 days locally while offering extended two-year in-app storage—plus unlimited cloud storage when paired with a SwitchBot Hub. They’re designed to be lightweight, portable, and simple to mount or hang using the included lanyard.

How accurate and responsive are these SwitchBot sensors?

The built-in industrial Swiss Sensirion sensor provides reliable readings with tight tolerances and a fast sampling cadence. Expect improved responsiveness for quickly changing environments compared with typical consumer sensors.

• Humidity accuracy up to ±1.8% RH
• Temperature accuracy up to ±0.36 °F
• Sampling interval: ~4 seconds for near real-time updates
• Measures dew point, VPD and absolute humidity in addition to temp/humidity

Can I use these outside, in fridges, or in humid spaces?

Yes—the sensor housing is IP65-rated so it resists dust and water spray, making it suitable for patios, greenhouses, bathrooms and more. Its compact form and removable battery design also make it convenient for enclosed spaces like refrigerators, humidors, and instrument cases.

• IP65 dustproof and water-resistant enclosure
• Small, lightweight body with lanyard for hanging or mounting
• Safe for refrigerators, wine cabinets, guitar cases, and humidors
• Durable for attics, basements, crawlspaces and outdoor covered areas

How does data logging and connectivity work with these devices?

Each sensor connects via Bluetooth up to about 394 feet line-of-sight and keeps local readings on-board for 68 days. When you pair them with the SwitchBot app you get two years of in-app storage and the option to export CSV files; adding a SwitchBot Hub unlocks unlimited cloud storage and push alerts.

• Bluetooth range: up to 394 ft without obstacles
• On-board storage: up to 68 days of readings
• In-app historical storage: up to 2 years (longer with Hub)
• Export data as CSV for deeper analysis; supports manual calibration

What smart notifications and integrations are available?

When used with a SwitchBot Hub, the sensors can trigger app notifications and be used as condition triggers in automations. You can set thresholds for temperature, humidity, dew point or VPD to receive alerts when conditions move outside your preferred ranges.

• Push notifications for preset threshold breaches (Hub required)
• Use sensor values as Scene conditions within the SwitchBot ecosystem
• Exportable readings for external analysis and monitoring systems
• Supports multiple calibration methods for customized accuracy

Who is this for? The SwitchBot IP65 Hygrometer Thermometer 3-Pack fits home hobbyists, gardeners, wine and instrument collectors, appliance monitors, and small-farm or greenhouse operators who need accurate, portable environmental monitoring with robust data logging. It’s a practical choice if you want durable outdoor-capable sensors, quick sampling, easy data export, and smarter alerts when paired with a SwitchBot Hub.