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YoLink YS1603 Freezer Temperature Sensor Kit with Hub1 / 6
Product guide

YoLink YS1603 Freezer Temperature Sensor Kit with Hub

The YoLink YS1603 Freezer Temperature Sensor Kit pairs one temperature sensor with a hub for app-based monitoring and threshold alerts. Its LoRa connection and claimed long open-air range may help monitor locations beyond typical Wi-Fi reach, while the kit requires the hub for the stated setup.

At a glance

  • Hub and one sensor are identified as the two products in the kit, not two sensors.
  • The listing describes customizable high- and low-temperature thresholds with app, text or email notifications.
  • The sensor uses two AA batteries. The listing claims up to five years of continuous operation, depending on use and environmental conditions.
  • Alexa temperature queries and IFTTT applets are listed. Alexa routines are not supported.
Price
$33.99Save 23%

Reference price: $43.99

Price checked: Nov 12, 2026

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Often bought together

Pros and cons

Pros

  • LoRa connectivity is intended for placements beyond Wi-Fi reach, with an advertised range of 2034 feet in open air.
  • App monitoring and configurable threshold alerts offer remote temperature awareness for a freezer or other monitored space.
  • Two AA batteries are stated as included, and the listing describes low-battery alerts through the app.

Technical specifications

14 specifications
Identity
BrandYoLink
ModelYS1603
Temperature monitoring
Measurement range-4°F to 122°F (-20°C to 50°C)
Accuracy, 32°F to 129°F±0.36°F (32°F to 129°F)
Accuracy, -20°F to 32°F±0.72°F (-20°F to 32°F)
Listed upper temperature range122 °F
Connectivity and controls
Wireless connection listedLoRa
Open-air range claim2034 feet
Power and construction
Battery requirement2 AA batteries required. (included)
Listed materialPlastic
Listed colorwhite
Listed reusabilityReusable
Display and compliance
Screen technology listedAnalog
Specification metFCC

What to know before buying

Listing details to confirm

The listing contains contradictory or inconsistent details: its title and kit contents specify one sensor plus a hub, while a detail field says “Detector,” and the model fields give YS1603 and YS1603+YS8017. It also lists an analog display although the main use described is app monitoring. Confirm the selected listing's exact kit and model before purchase. The claimed 2034-foot range is for open air, and battery life depends on use and conditions.

What’s in the box

Included
  • YoLink hub
  • Temperature sensor
  • 2 AA batteries

Who is it for?

A good fit for

  • People who want remote alerts for a freezer, refrigerator or other temperature-monitored space.
  • Buyers who need a sensor connection beyond Wi-Fi reach and can use the included YoLink hub.
  • Existing YoLink users who want another temperature-monitoring point.

Less suited to

  • Buyers seeking a two-sensor bundle. The stated kit is one sensor and one hub.
  • Buyers who need Alexa routines triggered by temperature, which the listing says are not supported.
  • Anyone who requires a stated temperature reading below -4°F or above 122°F.
YoLink YS1603 Freezer Temperature Sensor Kit with Hub · photo 2
Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 687 ratings
  • 5 stars84%84%
  • 4 stars6%6%
  • 3 stars3%3%
  • 2 stars1%1%
  • 1 star6%6%

Customer feedback describes straightforward smartphone setup, useful freezer monitoring and alerts, and positive experiences with connectivity and perceived accuracy. These reports are relevant for buyers who want remote checks through the listed app, but they do not establish measurement performance or guarantee connectivity in a particular home. The overall rating distribution is mostly five-star, with a smaller one-star share, so experiences are not uniformly positive.

Positive themes

  • Customers report easy smartphone setup and useful temperature alerts.
  • The feedback summary describes positive experiences with connectivity and temperature monitoring.

Frequently asked questions

Does this kit include two sensors?

No. The kit description says it includes one YoLink hub and one sensor, two items total. “2 Pack” refers to those two products, not two sensors.

What temperature range does the listing specify?

It states a measurement range of -4°F to 122°F (-20°C to 50°C). The listing also gives separate accuracy claims for stated temperature bands.

How does the sensor send readings and alerts?

The listed connection is LoRa, and the feature description says monitoring and threshold alerts are available through the YoLink app, with text and email options also described.

Can it trigger Alexa routines?

No. The listing says users can query Alexa for the temperature but that Alexa routine triggering is not supported.

YoLink YS1603 Freezer Temperature Sensor Kit with Hub · photo 3
Additional product photo 3

Alternative options

Product details in Markdown