No WiFi? Power out? Your freezer still calls you.
EDGE Thermo Cellular Fridge & Freezer Alarm
Its own cellular link and up to 2 years on 4 AA batteries keep it watching with no WiFi and no power. Keep it on USB-C power and within minutes of a power cut, everyone on your list gets an alert by push, email and text. 2 probes, a loud buzzer, year one of cellular included.
- Calls + texts to unlimited people with Premium
- Power-outage alert
- Up to 2 years on AA batteries
- Loud buzzer on the unit
SELECT NETWORK
- Cellular: no WiFi or router needed. Runs up to 2 years on AA batteries, and on USB-C power it alerts everyone within minutes of a power cut.
- WiFi is for places where the router never goes down. Empty buildings and power cuts? Cellular is the safe pick.
- Calls + texts to unlimited people with Premium
- Power-outage alert
- Up to 2 years on AA batteries
- Loud buzzer on the unit
- Cellular: no WiFi or router needed. Runs up to 2 years on AA batteries, and on USB-C power it alerts everyone within minutes of a power cut.
- WiFi is for places where the router never goes down. Empty buildings and power cuts? Cellular is the safe pick.
Will it get signal? It connects to cellular networks in Canada, the US and 170+ countries, with no roaming charges. Not sure about your spot? Call a real person at 1-888-365-8880 before you order.
Specs, manual & datasheet
What It Measures
Ambient Temperature
-20°C to +70°C (-4°F to 158°F)
Relative Humidity
1% to 99% RH
External Temperature (Probe 1)
-55°C to +125°C (-67°F to +257°F)
External Temperature (Probe 2)
-55°C to +125°C (-67°F to +257°F)
Flood Detector (Optional)
Water Leak Sensing
Dry Contact Input (Cloud Autodialer)
Dry-contact input (e.g. door switch or alarm relay) that triggers call, text and email alerts
Mold Index
Predicts mold-growth risk from temperature and humidity
Power-Outage Alert
Alert within minutes when the USB-C power drops; the AA batteries keep it running
About EDGE Thermo Cellular Dual-Probe Fridge & Freezer Temperature Data Logger & Alarm
Cellular fridge and freezer alarm and temperature data logger with two external probes, a built-in SIM and text, call, email and push alerts. For sites with no WiFi, plus an on-device buzzer. Probes read -55 to +125 °C (-67 to +257 °F), with readings logged for HACCP records and up to 2 years on 4 AA batteries, depending on settings and signal (USB-C optional). Cellular plan: first year included, then about $26.67/year (about $2.22/month) per device, billed annually.
Not a quiet notification. A phone call.
Your phone rings, a text lands with the reading, and email and push follow, for every person on your list, again and again until the reading is back in range.
Sunday
3:07
Incoming call
MaxLinc Alarm
MaxLinc
ALARM: Cottage is at 3 °C (37 °F). Your limit: 5 °C (41 °F). Alerts repeat until it's back in range.
Cottage: low temperature
Also sent to Dana and the neighbour by text, call and email.
MaxLinc Alarm
Cottage: low temperature
What customers say
4.7 / 5 (3)“The cellular connection works perfectly even where WiFi coverage is limited. Alerts arrive by text, email, and phone call exactly as promised.”
“Excellent monitoring for our restaurant refrigerators. Cellular communication ensures we never miss critical alarms.”
“Reliable and easy to deploy. Great option for remote food service locations.”
Year one of cellular included.
Included in year one
- Cellular data, unlimited
- Premium: full history + PDF reports
- ~$3.70 alert credit: about 250 texts or 100 calls
From year two
- ~$26.67/yr (~$2.22/mo) per device, billed annually, unlimited data
- No contract, cancel anytime
- Email and push alerts stay free; texts about 1.5¢, calls about 3.7¢
Example: a text and a call to 4 people costs about 21¢ in total.
You add a card when you register the device. Nothing is charged before year two.
Power out? WiFi down? EDGE Cellular still alerts you.
When the building loses power, the WiFi router goes down with it - and unless it's on backup power, a WiFi-only sensor goes silent. EDGE Cellular doesn't need the router.
01
Power drops
Everything plugged in goes dark - the WiFi router included.
02
Batteries take over
4 AA batteries keep EDGE logging and alarming. No outlet needed.
03
Cellular gets it out
Its built-in cellular link sends the alert. No WiFi or internet needed.
04
Your whole team is told
Push, email and text - to everyone on your list.
The outage alert fires when EDGE runs on USB-C power and that power drops. It goes out at the next recording: within 10 minutes at the default 10-minute interval, about a minute if it records every minute. The AA batteries keep it running through the outage.
A power cut takes the WiFi down too. EDGE Cellular still gets through.
When the power cuts
WiFi-only sensor: The router dies too, so it goes quiet (unless your router has backup power)
EDGE Cellular: Keeps watching on AA batteries and gets the alarm out over its own cellular link
No WiFi on site
WiFi-only sensor: Can't connect at all
EDGE Cellular: Built-in cellular, 170+ countries
How you find out
WiFi-only sensor: Many send only an app notification or email
EDGE Cellular: A phone call + text to unlimited people
For the freezers WiFi can't reach.
Garage, barn & cottage freezers
No router out there? It brings its own cellular link. If the freezer warms up, your phone rings. On USB-C power, if the power drops, you get a push, email and text at its next recording.
Food trucks & remote sites
Anywhere with cellular coverage, it watches your fridge and freezer and texts the whole crew.
Kitchens with shaky WiFi
A dead router can't silence it. Every reading is logged for your HACCP records.
Ready when you are
No WiFi? Power out? Your freezer still calls you.
- 30-Day Money-Back Guarantee
- Free shipping over $100
- 2-year limited warranty
- Ships within 3 business days
- Set up in under 5 minutes
EDGE Thermo Cellular Fridge & Freezer Alarm
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Questions before you buy
What happens in a power outage?
Keep it on USB-C power with the AA batteries in. When the power drops, everyone on your list gets a power-outage alert by push, email and text (each person on the channels turned on in their own profile) at its next recording (within 10 minutes at the default 10-minute recording interval, about a minute if it records every minute), over its own cellular link, so a dead router can't stop it. The batteries take over and keep it logging and alarming through the outage. Running on batteries only? It still watches the temperature and calls you if it goes out of range.
What does the cellular plan cost?
Nothing in year one: cellular data is included. After that it's about $26.67/year (about $2.22/month) per device, billed annually, with unlimited data, no contract, cancel anytime. You add a card when you register the device, and nothing is charged before year two.
What do phone calls and texts cost?
Email and push alerts are free and unlimited. Texts and calls run on prepaid alert credit. Your device comes with about $3.70 of credit, enough for 250 texts or 100 calls. After that a text is about 1.5¢ and a call about 3.7¢ (a text and a call to 4 people: about 21¢), and you top up anytime from your profile. If the credit ever runs out, email and push alerts keep going.
Will it work at my property?
It connects to cellular networks in Canada, the US and 170+ countries, with no roaming charges. Not sure about signal at your place? Call a real person at 1-888-365-8880 before you order and we'll talk it through.
How many people can get the alarm?
As many as you want: your partner, your staff, the neighbour. Everyone gets the call or text at once, the alerts repeat until the reading is back in range, and the log shows who acknowledged it.
Does it really work without WiFi?
Yes. A built-in global eSIM connects to cellular networks in 170+ countries. No router, no internet. It can also use WiFi if you have it.
How long do the batteries last?
Up to 2 years on 4 AA batteries on cellular, depending on settings and signal. The cloud emails you when they run low, and a no-connection alarm tells you if the device ever stops reporting. On USB-C power you also get the power-outage alert, within minutes of a cut.