Rooms & comfort · STARTING FRESH
See how a room feels over time.
Monitor indoor temperature and humidity in living areas, bedrooms or other dry indoor spaces.
Start here

YoLink Temperature & Humidity Sensor Starter KitHub + 2 Sensors
Models YS1603 + YS8003
Two rooms. One connected hub.
Start monitoring temperature and humidity with two compact sensors and a YoLink Hub.
What’s included & setup
- 1 × YoLink Hub (YS1603)
- 2 × Temperature & Humidity Sensor (YS8003)
Before you chooseKeep indoor sensors dry and away from direct sun, vents and other local heat sources. Choose a display model if you want readings visible in the room.
Rooms & comfort · ADDING TO YOUR SYSTEM
See how a room feels over time.
Monitor indoor temperature and humidity in living areas, bedrooms or other dry indoor spaces.
Build on what you have

Temperature & Humidity Sensor
Model YS8003
Add another room.
A compact temperature and humidity sensor for your existing compatible system.
What’s included & setup
- 1 × Temperature & Humidity Sensor (YS8003)
- 2 × installed AAA batteries
- 1 × Quick Start Guide
A YoLink hub is needed for app monitoring and alerts; sold separately.

YoLink Indoor Hygrometer Thermometer YS8013
Model YS8013
Read conditions at a glance.
An indoor hygrometer thermometer with a display, plus connected app access through your compatible hub.
Before you chooseKeep indoor sensors dry and away from direct sun, vents and other local heat sources. Choose a display model if you want readings visible in the room.
Fridge & freezer · STARTING FRESH
Put the probe where the reading matters.
Use a wired temperature probe to monitor a cold-storage location while choosing a suitable position for the sensor body.
Start here

YoLink Weatherproof Temperature Sensor Starter Kit — SpeakerHub + 2 Sensors with Probe
Models YS1604 + YS8004
Two probe sensors with SpeakerHub.
A starting point for temperature monitoring at two locations. Probe sensors measure temperature, not humidity.
What’s included & setup
- 1 × SpeakerHub (YS1604)
- 2 × Weatherproof Temperature Sensor with probe (YS8004)
The included SpeakerHub requires continuous USB power and an internet connection through 2.4 GHz Wi-Fi. Sensor bodies must not be submerged; place only the probes in liquid.
Before you chooseProbe measurement, sensor-body operating limits and configurable alert limits are different. Check all three on the product page. Route the cable without damage or compromising the door seal; test radio coverage with the door closed.
Fridge & freezer · ADDING TO YOUR SYSTEM
Put the probe where the reading matters.
Use a wired temperature probe to monitor a cold-storage location while choosing a suitable position for the sensor body.
Build on what you have

Weatherproof Temperature Sensor with Probe
Model YS8004
Add a probe sensor.
Place the wired probe at the measurement point and keep the body within its own environmental limits.
What’s included & setup
- 1 × Weatherproof Temperature Sensor with probe (YS8004)
- 2 × installed AAA lithium batteries
- 1 × Quick Start Guide
A YoLink hub is required for app readings and alerts; sold separately.
Before you chooseProbe measurement, sensor-body operating limits and configurable alert limits are different. Check all three on the product page. Route the cable without damage or compromising the door seal; test radio coverage with the door closed.
Outdoor spaces · STARTING FRESH
Check conditions farther from the house.
Monitor temperature and humidity in a suitable outdoor location, greenhouse or outbuilding within your system’s radio coverage.
Start here

YoLink Weatherproof Temperature & Humidity Sensor Starter Kit — SpeakerHub + 2 Sensors
Models YS1604 + YS8005
Two outdoor sensors with SpeakerHub.
Start monitoring temperature and humidity in two suitable outdoor locations.
What’s included & setup
- 1 × SpeakerHub (YS1604)
- 2 × Weatherproof Temperature & Humidity Sensor (YS8005)
Before you chooseWeatherproof does not mean submersible. Follow the model’s mounting and environmental requirements, avoid direct sun for representative air readings, and test radio coverage at the final location.
Outdoor spaces · ADDING TO YOUR SYSTEM
Check conditions farther from the house.
Monitor temperature and humidity in a suitable outdoor location, greenhouse or outbuilding within your system’s radio coverage.
Build on what you have

Weatherproof Temperature & Humidity Sensor
Model YS8005
Add an outdoor sensor.
Extend temperature and humidity monitoring to a suitable outdoor location.
What’s included & setup
- 1 × Weatherproof Temperature & Humidity Sensor (YS8005)
- 2 × installed AAA lithium batteries
- 1 × Quick Start Guide
A YoLink hub is required for app readings and alerts; sold separately.
Before you chooseWeatherproof does not mean submersible. Follow the model’s mounting and environmental requirements, avoid direct sun for representative air readings, and test radio coverage at the final location.
Smoke & rapid changes · STARTING FRESH
Add smoke detection and rapid temperature-change alerts.
Choose YS7A12 for photoelectric smoke detection with rapid-rise and rapid-drop temperature notifications.
Start here

YoLink Photoelectric Smoke Alarm
Model YS7A12
Smoke alerts, plus rapid temperature changes.
Photoelectric smoke detection with configurable rapid-rise and rapid-drop temperature notifications.

YoLink Hub
Model YS1603
Connect your first devices
Add this separately for app access and remote notifications. Requires continuous power and an internet connection.
What’s included & setup
- 1 × YoLink Hub
- 1 × USB cable
- 1 × AC/DC power adapter
- 1 × Ethernet cable
- 1 × quick start guide
Before you chooseFollow the smoke alarm’s installation and test instructions for placement. App notifications and remote functions require a connected YoLink hub and internet. Use the Rooms & comfort options for routine temperature and humidity monitoring.
Smoke & rapid changes · ADDING TO YOUR SYSTEM
Add smoke detection and rapid temperature-change alerts.
Choose YS7A12 for photoelectric smoke detection with rapid-rise and rapid-drop temperature notifications.
Build on what you have

YoLink Photoelectric Smoke Alarm
Model YS7A12
Smoke alerts, plus rapid temperature changes.
Photoelectric smoke detection with configurable rapid-rise and rapid-drop temperature notifications.
Before you chooseFollow the smoke alarm’s installation and test instructions for placement. App notifications and remote functions require a connected YoLink hub and internet. Use the Rooms & comfort options for routine temperature and humidity monitoring.