How to reduce claims for insured clinics and eliminate medical spoilage?

Network-isolated 4G loggers maintain an unbroken evidentiary chain during facility outages when Wi-Fi-dependent systems go dark.

What are the recommended storage and safety protocols for GLP-1s, BOTOX, mRNA Vaccines, and Biologics during power outages?

Replacing Wi-Fi loggers with a dedicated 4G LTE connection means the device does not depend on the clinic's Wi-Fi or network, and readings are transmitted every 5 minutes.

How to reduce government spending on public vaccines and maintain CDC VFC compliance automation?

A temperature reading outside 2-8°C triggers an automated phone call, and a device that stops reporting is detected within 15 minutes, supporting compliance through automatic annual replacement with an ISO/IEC 17025-calibrated probe.

Your refrigerator will fail on a night when nobody is there.

National Cold Vault is a cellular monitor for medication refrigerators and freezers. It runs on its own LTE connection and its own battery, and it calls your phone when the temperature leaves range, the power fails, or the probe is unplugged. Hardware, data, alerts, software, and annual calibration are all included in one price.

See pricing Watch the 2 a.m. test (1:47)

From $399 a year per unit. $99 refundable deposit.

Monitor mounted on a medication refrigerator door, display showing an in-range temperature

Dashboard showing a 16-day temperature trace and live readings

One price. Everything included.

The monitor, probe, glycol vial, and power adapter
Cellular data. No Wi-Fi, no gateway, no IT ticket
Phone call and text when a fridge leaves range, loses power, or the probe is unplugged. No per-alert fees

Dashboard and mobile app, unlimited users, one-click audit PDF
A new calibrated probe every year, with its own ISO/IEC 17025 certificate, mailed to you
Free replacement of any failed part or device during your term

One price per unit. Everything included.

Hardware, cellular, alerts, software, audit PDFs, annual calibrated probe, free replacement. No gateway, no per-alert fees.

Price per unit by number of units
Units	Term	Per unit per year	About	3-year per unit
1 to 3	1 year	$399	$1.09 a day	Not applicable
4 to 9	1 year	$349	$0.96 a day	Not applicable
10 to 24	3 years	$299	$0.82 a day	$897
25 and up	3 years	$249	$0.68 a day	$747
100 and up	3 years	Quote within 48 hours	Not applicable	Not applicable

1 to 3
$399 a year
Term
1 year
About
$1.09 a day
3-year per unit
Not applicable
4 to 9
$349 a year
Term
1 year
About
$0.96 a day
3-year per unit
Not applicable
10 to 24
$299 a year
Term
3 years
About
$0.82 a day
3-year per unit
$897
25 and up
$249 a year
Term
3 years
About
$0.68 a day
3-year per unit
$747
100 and up
Quote within 48 hours
Term
3 years
About
Not applicable
3-year per unit
Not applicable

Add a fourth unit and all four drop to $349.

See full pricing

$99 refundable deposit per unit, refundable until we ship. Year one balance due at activation, not before.
1-year tiers: rate held 24 months, then any increase capped at 3% a year. 3-year tiers: rate fixed for the term, billed annually.
30-day money-back after installation. Free replacement of any failed part or device during your term.
Deep-freeze probe (−90 °C) +$50 per unit per year.
Pay by card, debit, or ACH through Stripe, or by check. Organizations may pay by purchase order, net 30.

The fridge/freezer the state doesn't cover

If you're a VFC provider, Ohio gives you a logger for the state-supplied vaccine. It does not cover the refrigerator holding the inventory you bought — private-stock flu and Shingrix, GLP-1s, insulin, allergen extracts, compounded preparations. That's the fridge/freezer you'd replace out of pocket.

Continuous temperature monitoring
Tamper-evident log with device serial, timestamp and min/max, exportable as a PDF for Board of Pharmacy review
Phone call and SMS on excursion or power loss.

Probe on the middle shelf among water bottles

What happens at 2 a.m.

When a probe reads out of range — or the unit loses power — the system places a phone call. Not a push notification that sleeps with your phone. It calls, then texts.

Excursion: your phone rings within 6 minutes. Power loss: within 10. Dead device: within 20.

Phone on Do Not Disturb showing an incoming NCV ALERT call

Hardware and standards

Standard probe: −30 °C to +60 °C. Vaccine refrigerators, blood bank refrigerators, standard pharmacy freezers. PT1000 in a sealed glycol vial.
Deep-freeze probe: −90 °C to +200 °C. Plasma and tissue freezers. +$50 per unit per year.
Battery: Internal battery, over 72 hours measured. Mains with battery backup.
Connectivity: Cellular, 5-minute interval. FCC-certified LTE module, FCC ID XMR2023EG800QNA, PTCRB certified. No gateway, no Wi-Fi.
Power adapter: ETL Listed (Intertek), UL 1310 / CSA C22.2 No. 223.
Calibration: ISO/IEC 17025-accredited calibration certificate per unit (CNAS, ILAC MRA), traceable to national standards.

View technical dimensions

Monitor, probe, and power adapter on a white background

Mounting

Heavy-duty 3M flexible magnetic sheet mounted across the entire back plate.

Insured
SAM.gov registered
HealthTrust supplier #964950
ETL Listed adapter
ISO/IEC 17025 calibration

Vendor packet →

Why I built National Cold Vault

Sean Lin, Founder