LoggFi · India
GSM temperature data logger for sites without WiFi
A GSM data logger records temperature and sends readings over a cellular connection using a SIM card. LoggFi GSM models provide cloud temperature monitoring for locations where facility WiFi is unavailable or unsuitable.
When to choose a GSM logger
Choose GSM when you need connectivity independent of the site’s WiFi. The models in this catalogue use GSM/GPRS (2G), so confirm compatible operator coverage at the installation point before ordering.
LoggFi is offered by Bagmo Private Limited in Kochi, Kerala. Discuss your facility, sensor requirements and deployment location in India with our team before selecting a model.
Compare WiFi data loggersGSM data logger models and specifications
Select the sensor first, then the display and alarm options. Temperature ranges refer to the sensor; the electronics have a separate operating environment.
| Model | Sensor / family | Temperature range | Accuracy | Display | Offline readings |
|---|---|---|---|---|---|
| SMD102 | LoggFi NTC | −40°C to +50°C | ±0.5°C | OLED | 500 |
| SM102 | LoggFi NTC | −40°C to +50°C | ±0.5°C | None | 500 |
| SMD102PT | LoggFi+ PT100 PT-100 | −200°C to +400°C | ±0.5°C | OLED | 500 |
| SM102PT | LoggFi+ PT100 PT-100 | −200°C to +400°C | ±0.5°C | None | 500 |
| SMD102HM | LoggFi Hygro NTC & SHT20 | −40°C to +50°C | ±0.5°C | OLED | 500 |
| SM102A / SMD102A | LoggFi SonicGuard+ NTC | −40°C to +50°C | ±0.5°C | Optional | 500 |
Hygro models also monitor 0–90% RH. Call, SMS and email alerts are listed in the catalogue; confirm the service configuration and any recurring charges in your quotation.
- Logging interval
- 1 – 40 minutes
- Input / charging
- 5V USB
- Battery backup
- 20 – 30 hrs typical
- Enclosure
- ABS Plastic · IP4X
- Operating env.
- 10 – 40°C · 30 – 70% RH
- Calibration
- Internal / NABL
Confirm the probe-specific accuracy, calibration points and certificate scope for your application. Battery backup is typical and depends on operating conditions.
Plan your installation
- Confirm GSM/GPRS (2G) service and signal at the actual monitoring location with your intended SIM operator.
- Confirm the SIM and data plan, recurring charges and responsibility for maintaining service.
- Select an NTC or PT100 probe for the required temperature range and plan the power supply and mounting.
- Test cloud uploads, configured call/SMS/email alerts and reconnection behaviour at the site.
GSM data logger questions
Does a GSM temperature data logger work without WiFi?
Yes. It uses a SIM-based cellular connection instead of WiFi. Compatible cellular coverage and an active service plan are still required for cloud uploads and remote alerts.
Are these LoggFi GSM models 4G or 5G devices?
The models listed in the current LoggFi catalogue use GSM/GPRS (2G). Do not assume 4G or 5G compatibility. Confirm the required network technology and local operator support with LoggFi before purchase.
Can the GSM logger store readings without a mobile signal?
The listed LoggFi GSM temperature logger models store 500 offline readings. Cloud updates require cellular connectivity. The time covered by local storage depends on the selected logging interval.
What is the price of a GSM data logger in India?
Pricing depends on the sensor, display, number of devices and service requirements. Request a quote that identifies the device price, SIM/data charges, cloud service, calibration and installation costs.
Discuss your monitoring requirement
Tell us your temperature range, number of monitoring points, facility location and calibration needs.