Seguro 150
A sealed, reusable NFC temperature logger built for everyday shipments.
Simple, straightforward temperature logging for shipments that don't require IEC 17025 traceable calibration certificates. Just fast, accurate, tap-to-read temperature data.
Shipping regulated pharma or need NIST-traceable calibration on file? The Seguro 160 is built for that.
Simple, straightforward temperature logging
No app, no cables, no calibration paperwork — just a tap and a temperature history.
Half a business card, 4mm thick
Fits into packaging that a USB logger never could — labs, kits, and last-mile parcels alike.
Tap-and-go NFC
No app required. Any smartphone reads the full temperature history in one tap.
Automatic delivery confirmation
The person who started the session is notified the moment it's read — no chasing status.
Seguro 150 vs 160
Seguro 150
Seguro 160
Calibration certificate
Not included
NIST-traceable, downloadable, digitally signed
Best for
Internal, non-regulated shipments, lane validation
Regulated pharma and perishable shipments, clinical trials, audit-ready chains of custody
Reusable
Yes, 3+ years
Yes, 3+ years
Cloud-connected
Yes
Yes
Tap-and-go NFC
Yes
Yes
Volume pricing
$15 USD
$25 USD
Seguro vs Other Technologies
Feature
USB Loggers
Temp Strips
Seguro Smart Loggers
App Required
Often
No
No
USB Connection Required
Yes
No
No
Cloud Access
Manual
None
Automatic
Ease of Use for Recipient
Low
High
High
Full Temperature History
Yes After Upload
No
Yes
Chain of Custody Proof
Manual, Delayed
No
Automatic
Enriched Recording Data
None
None
Location, Photos, Notes, Scans
Reusable
Sometimes
No
Yes
Cost
Medium
Low
Medium
Tech Specs
Communication
Power
Enclosure
Measurements
Environmental
Protocol
NFC, Type 4 NDEF
SOURCE
3.0V LiMnO₂, 220mAh
Dimensions
62 x 43 x 4mm
Accuracy
± 0.1°C (typical)
Temperature Range
-30°C to +50 °C
Range
5mm
Battery Life
3+ years
Weight
20g
Measurement Buffer
5040 Samples
Ingress
IP 65
Communication
Protocol
NFC, Type 4 NDEF
Range
5mm
Power
SOURCE
3.0V LiMnO₂, 220mAh
Battery Life
3+ years
Enclosure
Dimensions
62 x 43 x 4mm
Weight
20g
Measurements
Accuracy
± 0.1°C (typical)
Measurement Buffer
5040 Samples
Environmental
Temperature Range
-30°C to +50 °C
Ingress
IP 65
Questions People Actually Ask
Does the Seguro 150 include a calibration certificate?
No — that's the point. The 150 is built for shipments where you need accurate, reliable temperature data but don't need a NIST-traceable certificate on file. If you do need one, the Seguro 160 includes it standard.
Is the 150 accurate enough for regulated shipments?
The sensor is exactly the same one used across the Seguro line. What the 150 lacks isn't accuracy — it's the paper trail. For audit-ready, regulated and produce shipments, we recommend the 160.
Do I need an app to read it?
No. Tap it with any NFC-enabled smartphone and the temperature history opens instantly in your browser.
Can I switch to the 160 later if my requirements change?
Yes. Both tags work on the same Seguro platform, so switching doesn't mean switching workflows.