YoLink Smart Wireless Thermometer Hygrometer 3-Pack with Hub Long-Range LoRa & 5-Year Battery

YoLink Smart Wireless Thermometer Hygrometer 3-Pack with hub monitors temperature and humidity across long distances and sends app, email, and SMS alerts while delivering multi-year battery life.

Keep precise environmental control in fridges, freezers, greenhouses, pet enclosures, closets, or anywhere WiFi is weak. This kit includes one YoLink Hub plus three battery-powered sensors that use a long-range LoRa-based protocol instead of your home WiFi, extending coverage up to a quarter mile in open air and reducing network congestion. The sensors report temperature and humidity regularly to the YoLink app and trigger customizable notifications when conditions cross your set thresholds.

How does this system stay connected when WiFi won’t reach?

The YoLink sensors communicate over a LoRa-derived, low-power radio network that links through the included YoLink Hub to the cloud. That means you can place sensors in basements, garages, freezers, or distant outbuildings without burdening your home router. The hub translates sensor signals to the internet so alerts and logs appear quickly in the app.

• LoRa-based long-range wireless protocol for extended coverage.
• Hub converts sensor data to cloud access for remote monitoring.
• Works in locations beyond typical WiFi or Bluetooth range.

What accuracy and ranges can I expect for temperature and humidity?

These sensors provide commercial-grade measurement accuracy suitable for many monitoring needs. Temperature accuracy is ±0.36°F (0°C to 54°C) and ±0.72°F (-20°C to 0°C); humidity accuracy is ±3% across the 10%–90% range. The device operates from -4°F to 129°F (-20°C to 54°C) and measures humidity from 0% to 100%.

• Temperature range: -4°F to 129°F (-20°C to 54°C).
• Humidity range: 0%–100%; ±3% accuracy in typical ranges.
• Calibration-grade performance for consumer and light-commercial tasks.

How are alerts, battery life, and integrations handled?

Set custom alert thresholds in the YoLink app to receive push notifications, emails, and text messages when readings exceed your limits. Each sensor runs on two AA batteries and is designed for up to five years of operation under normal usage, with low-battery warnings sent via the app. The system supports IFTTT triggers and basic Alexa temperature queries to fit into automations.

• Push, email, and SMS alerts with configurable thresholds and limits.
• Up to 5 years battery life per sensor; app notifies when replacement is needed.
• IFTTT and Alexa integration for simple automations and voice queries.

What’s included and how many devices can I expect to manage?

The package contains one YoLink Hub plus three Thermometer Hygrometer sensors (four items total). The hub connects the sensors to the YoLink cloud and mobile app, where you can view history, set notifications, and manage devices. SMS alerts are limited per device and package; the hub with a sensor provides free SMS credits that refresh monthly.

• 1 YoLink Hub and 3 sensors—four physical items in the box.
• App-based history logging and threshold configuration for each sensor.
• SMS quota and notification options managed through your YoLink account.

Who this is for: Homeowners, small business operators, and hobbyists who need dependable environmental monitoring where WiFi is unreliable or unavailable. Ideal for monitoring refrigerators, freezers, greenhouses, workshops, pet enclosures, storage areas, and remote rooms that require long battery life and long-range connectivity. Choose this kit when you want accurate temperature and humidity readings, flexible alerts, and an off-WiFi radio backbone for broad coverage.