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Two white wireless thermometers with probes and magnetic backs

WiFi Refrigerator Thermometer 2 Pack White

SKU CH-4G8T-70TZR

Two wireless sensors monitor fridge or freezer temperatures from -40 °F to 158 °F with ±0.5 °C accuracy, sending app alerts, emails and an 80 dB buzzer alarm when limits are exceeded

  • Product colorWhite
  • Instant app, email & buzzer alerts protect food 24/7
  • ±0.5 °C precision with 2-second response from -40 °C to 70 °C
  • 80 dB buzzer demands attention, silenced by side button
  • One gateway manages up to 10 sensors within 70 m range
  • Magnetic or hanging mount with ultra-thin cable installs in minutes

Smart 3-Way Alert Thermometer

This WiFi refrigerator thermometer comes as a two-pack of white wireless sensors with a gateway for remote temperature monitoring. Each unit uses a 2.7mm NTC probe delivering ±0.5°C accuracy across a -40°C to 70°C range. The system sends instant app notifications, email alerts and an 80dB buzzer alarm when temperatures exceed your preset limits.

Home Kitchen and Multi-Fridge Users

The kit suits households wanting whole-home coverage because one gateway handles up to 10 sensors within 70m. It is not for buyers who need 5GHz Wi-Fi compatibility, as the gateway only supports 2.4GHz networks. Installations requiring hard-wired Ethernet connectivity or local-only operation without cloud services should look elsewhere.

Capacity and Temperature Headroom

The operating range covers deep-freeze storage down to -40°C and ambient monitoring up to 70°C, handling typical fridge, freezer and hot-tub duties comfortably. Battery-backed sensors continue logging during brief network drops, but the gateway must stay within 100m of the router in open air for cloud alerts to function.

How it compares

Measured against everything we stock in Digital Thermometers & Hygrometers, at today’s prices. Recalculated every night.

Price $35.99
Pricier than about 80% of the 925 comparable items (median $23.99).

Specifications

Product
Product colorWhite

Questions about this item

What Wi-Fi network does the H5151 gateway need to connect the sensors?

The gateway only works with a 2.4GHz Wi-Fi network; 5GHz is not supported.

How many sensors can I add to one gateway if I keep my older units?

A single gateway supports up to 10 sensors within a 230ft range for centralized monitoring.

How do I confirm the probe is reading correctly after installation?

The NTC probe delivers ±0.5°C precision with a 2-second response time across the -40°C to 70°C range.

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