LoggFi Logo

Product catalogue · 2026

Sensing the unseen,
protecting what matters.

LoggFi is a family of cloud-connected data loggers built for cold chains, pharma, industry and critical infrastructure — from a −200°C cryogenic probe to a hooter that will wake a warehouse.

16
Models
7
Product families
−200→400°C
Sensing range
Featured LoggFi WiFi temperature data logger
FeaturedLoggFi
Cloud connected
Always in the knowInstant alerts.

The lineup

Seven families, one platform.

Every LoggFi device shares the same cloud dashboard, OTA firmware and alerting engine — pick the sensor and comms that fit the job.

01 / 07LoggFi device
WiFiGSMOLED

The core cloud temperature logger

LoggFi

The flagship LoggFi logger delivers reliable NTC-based temperature monitoring with cloud connectivity, offline logging and instant alerts — the foundation of the LoggFi platform.

  • NTC sensor
  • Cloud dashboard
  • Offline logging
  • OTA updates
Range
−40°C to +50°C
Sensor
NTC
Accuracy
±0.5°C
Alerts
Call, SMS & Email

4 models

  • SMD102GSM · OLED Display
  • SM102GSM · Compact
  • WTD102WiFi · OLED Display
  • WT102WiFi · Compact
02 / 07LoggFi+ PT100 device
WiFiGSMOLED

Wide-range industrial precision

LoggFi+ PT100

For cryogenic storage, autoclaves and industrial processes. PT-100 sensing extends the range from −200°C all the way to +400°C without giving up cloud alerts.

  • PT-100 probe
  • −200°C to +400°C
  • Industrial grade
  • Cloud alerts
Range
−200°C to +400°C
Sensor
PT-100
Accuracy
±0.5°C
Alerts
Call, SMS & Email

4 models

  • SMD102PTGSM · OLED Display
  • SM102PTGSM · Compact
  • WTD102PTWiFi · OLED Display
  • WT102PTWiFi · Compact
03 / 07LoggFi Hygro device
WiFiGSMOLED

Temperature + humidity in one

LoggFi Hygro

Dual-sensor monitoring for pharma, cold storage and cleanrooms. Combines NTC temperature with SHT20 humidity sensing to protect moisture-sensitive stock.

  • NTC + SHT20
  • 0–90% RH
  • OLED on both variants
  • Compliance-ready
Range
−40°C to +50°C
Humidity
0% to 90% RH
Sensor
NTC & SHT20
Accuracy
±0.5°C
Alerts
Call / SMS / Email

2 models

  • SMD102HMGSM · OLED Display
  • WTD102HMWiFi · OLED Display
04 / 07LoggFi SonicGuard+ device
WiFiGSMSiren

Loud, unmistakable on-site alerts

LoggFi SonicGuard+

A logger paired with a hooter for immediate on-site alerting when thresholds are breached — because a phone notification isn’t always enough.

  • Integrated siren
  • On-site + cloud alerts
  • GSM or WiFi
  • Optional display
Range
−40°C to +50°C
Sensor
NTC
Accuracy
±0.5°C
Alerts
Siren + Call, SMS & Email

2 models

  • SM102A / SMD102AGSM · Hooter
  • WT102A / WTD102AWiFi · Hooter
05 / 07LoggFi SonicGuard AC device
GSMSirenPower-fail

Hooter with A/C controller

LoggFi SonicGuard AC

Everything SonicGuard offers plus an A/C controller and power-failure detection — ideal for server rooms and temperature-critical cabins.

  • A/C controller
  • Power-failure detect
  • Siren
  • GSM connected
Range
N/A (controller unit)
Sensor
Accuracy
Alerts
Siren + Call, SMS & Email

1 model

  • SM102BGSM · Hooter + A/C control
06 / 07LoggFi Pulse device
GSMPower-fail

Power-failure sentinel

LoggFi Pulse

A dedicated GSM device that watches over your mains supply and calls, SMSs and emails the moment power drops or is restored.

  • Power-failure detect
  • GSM connected
  • Instant alerts
  • Battery backup
Range
N/A
Sensor
Accuracy
Alerts
Call, SMS & Email

1 model

  • SM102PGSM · Power monitor
07 / 07LoggFi Sentinel device
WiFiGSMOLEDSiren

On-site hooter guardian with display

LoggFi Sentinel

A loud on-site hooter paired with an OLED display — perfect for cold rooms, pharma cabinets and secured storage where instant, unmissable alerts matter.

  • Loud siren
  • Built-in display
  • Cloud alerts
  • GSM or WiFi
Range
N/A
Sensor
Accuracy
Alerts
Siren + SMS & Email

2 models

  • SMD102SLGSM · Hooter + Display
  • WTD102SLWiFi · Hooter + Display

One platform

Common ground
across the range.

Every LoggFi device shares the same hardware backbone — rechargeable Li-ion, over-the-air firmware, IP4X ABS enclosure and NABL-calibrated precision.

NABL-calibrated · OTA-upgradable
Logging interval
1 – 40 minutes
Input / charging
5V USB
Battery
3.7V Li-ion · 1000 mAh
Battery backup
20 – 30 hrs typical
Protection
Overcharge / Overdischarge
OTA support
Yes — over the air firmware
Enclosure
ABS Plastic · IP4X
Mounting
Wall mount / Peel-and-stick
Operating env.
10 – 40°C · 30 – 70% RH
Calibration
Internal / NABL

Side by side

Find your perfect fit.

All 16 models at a glance. Compare connectivity, displays and sensing ranges to choose your LoggFi.

Scroll horizontally to see all specifications

LoggFi model specifications and connectivity comparison
ModelFamilyVariantCommsDisplayOffline logRange
SMD102
LoggFiGSM · OLED DisplayGSM / GPRS (2G)OLED500 readings−40°C to +50°C
SM102
LoggFiGSM · CompactGSM / GPRS (2G)500 readings−40°C to +50°C
WTD102
LoggFiWiFi · OLED DisplayWiFiOLED2000 readings−40°C to +50°C
WT102
LoggFiWiFi · CompactWiFi2000 readings−40°C to +50°C
SMD102PT
LoggFi+ PT100GSM · OLED DisplayGSM / GPRS (2G)OLED500 readings−200°C to +400°C
SM102PT
LoggFi+ PT100GSM · CompactGSM / GPRS (2G)500 readings−200°C to +400°C
WTD102PT
LoggFi+ PT100WiFi · OLED DisplayWiFiOLED2000 readings−200°C to +400°C
WT102PT
LoggFi+ PT100WiFi · CompactWiFi2000 readings−200°C to +400°C
SMD102HM
LoggFi HygroGSM · OLED DisplayGSM / GPRS (2G)OLED500 readings−40°C to +50°C
WTD102HM
LoggFi HygroWiFi · OLED DisplayWiFiOLED2000 readings−40°C to +50°C
SM102A / SMD102A
LoggFi SonicGuard+GSM · HooterGSM / GPRS (2G)500 readings−40°C to +50°C
WT102A / WTD102A
LoggFi SonicGuard+WiFi · HooterWiFi2000 readings−40°C to +50°C
SM102B
LoggFi SonicGuard ACGSM · Hooter + A/C controlGSM / GPRS (2G)N/A (controller unit)
SM102P
LoggFi PulseGSM · Power monitorGSM / GPRS (2G)N/A
SMD102SL
LoggFi SentinelGSM · Hooter + DisplayGSM / GPRS (2G)OLEDN/A
WTD102SL
LoggFi SentinelWiFi · Hooter + DisplayWiFiOLEDN/A
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