YoLink Freezer Thermometer Hygrometer 3-Pack YS8007 — Long-Range LoRa, Commercial Accuracy

The YoLink Freezer Thermometer Hygrometer 3-Pack (YS8007) are long-range, battery-powered sensors that monitor temperature and humidity in fridges, freezers and other out-of-reach spaces while sending instant alerts through the YoLink system.

These compact sensors use YoLink's LoRa-based wireless link to report precise temperature and humidity readings to the YoLink app without depending on home WiFi. With commercial-grade accuracy, extended battery life, and customizable notifications, the pack of three is designed for continuous environmental tracking where network coverage or power access is limited. A YoLink Hub is required to connect the sensors to the cloud and enable app alerts, integrations, and remote viewing.

How accurate and wide-ranging are the temperature and humidity readings?

The sensors provide laboratory-grade precision across a broad operating range, suitable for cold storage and ambient rooms alike. Accuracy tightens in common use ranges and remains reliable even at subfreezing temperatures.

• Temperature range: -4°F to 129°F (-20°C to 54°C).
• Temperature accuracy: ±0.36°F between 0°C and 54°C, ±0.72°F for -20°C to 0°C.
• Humidity range: 0% to 100% RH with ±3% accuracy across 10%–90% RH.
• Stable readings for freezers, fridges, greenhouses and indoor spaces.

What network does the YoLink sensor use and why does that matter?

Instead of relying on household WiFi, these sensors use YoLink’s LoRa-style long-range, low-power wireless protocol. That keeps your WiFi bandwidth free and extends connectivity to areas WiFi can't reach.

• Operational range up to about 2,034 feet in open air.
• Ideal for basements, outbuildings, inside refrigerators or remote rooms.
• Less interference and reduced risk of flooding a home network with IoT devices.
• Requires a YoLink Hub to relay data between sensors and the cloud app.

How do alerts, battery life, and integrations work?

Set temperature and humidity thresholds in the YoLink app and receive push, email, or limited SMS notifications when conditions cross those limits. The sensor runs on two AA batteries designed for long deployment and notifies you before power runs out.

• Custom alerts via push, email, and limited SMS; Apple Critical Alerts supported.
• Typical battery life up to several years depending on reporting frequency and environment.
• Low-battery warnings sent through the app so you can swap cells before failure.
• Works with IFTTT and offers Alexa temperature queries (humidity not available via Alexa).

What do I need to get this working right away?

You’ll need a YoLink Hub (sold separately) to connect these sensors to the YoLink cloud and mobile app. Once paired, the app provides history graphs, alerts, and device settings for each sensor.

• Hub required for remote monitoring, alerts, and cloud history.
• Hub choices include the SpeakerHub, original Hub, and X3 Hub (check compatibility codes).
• Sensor ships in a 3-pack for monitoring multiple locations or redundancy.
• No home WiFi configuration required for the sensors themselves.

Who is this for: The YoLink YS8007 3-pack is aimed at homeowners, small business operators, and hobbyists who need dependable environmental monitoring where WiFi is weak or unavailable. It's suited for monitoring freezers, refrigerators, pantries, greenhouses, pet areas, workshops, and any location where long battery life and dependable alerts matter. If you need full remote control, historical logs, and third-party triggers, pair these sensors with a YoLink Hub and the YoLink app.