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Setu – Single-Channel WiFi Data Logger

Setu is a single-channel WiFi data logger for refrigerators, freezers, cold rooms and storage areas. It records temperature at the interval you set, syncs readings over Wi-Fi and alerts your team the moment a limit is crossed.

Setu WiFi data logger
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Measures
Temperature
Temperature range
−30 to +70 °C
Sensor
Internal
Battery
3000 mAh

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The name

Why We Call It Setu

Sanskrit "Setu" means bridge: the bridge from offline logging to live monitoring.

Key features

Setu: WiFi Data Logger Features

Best for: Refrigerators, freezers and single storage points.

  • Single-channel temperature logging with live Wi-Fi sync
  • Internal sensor for −30 to +70 °C, or an external probe on a 1 m cable for −100 to +200 °C (X models)
  • Pro models carry a high-capacity 7000 + 7000 mAh battery
  • ±0.5 °C accuracy with 0.1 °C resolution
  • Stores up to 1,00,000 records, with offline download via PC software

Specifications

Setu Specifications

Each variant side by side, followed by the specifications shared by every Prithvi logger.

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SpecificationSetuSetu XSetu ProSetu Pro X
MeasuresTemperatureTemperatureTemperatureTemperature
Temperature range−30 to +70 °C−100 to +200 °C−30 to +70 °C−100 to +200 °C
SensorInternalExternal probeInternalExternal probe
Probe / cable—1 m external probe—1 m external probe
Battery3000 mAh3000 mAh7000 + 7000 mAh7000 + 7000 mAh
Common to all variants
Accuracy±0.5 °C (±2 %RH on RH models)
Resolution0.1 °C (0.1 %RH)
StorageUp to 1,00,000 records
Logging interval1–60 min (configurable)
Cloud sync interval1–60 min (configurable)
Battery lifeAbout 3 months at a 10-minute logging interval
ChargingUniversal USB Type-C; rechargeable Li-ion battery
ConnectivityWi-Fi, plus offline data download via PC software. GSM and LoRa versions available on request.

Loggers can be calibrated by our parent lab through our Calibration service.

Applications

Where Setu Is Used

Industries where we recommend this series, and what it typically monitors there.

Monitoring

Cloud Monitoring Dashboard & Mobile Alerts

Every Setu works with the monitoring dashboard, so readings, alerts and reports are in one place.

  • Real-time alerts via email, SMS, mobile app and dashboard
  • Multi-level escalation (Level 1 → 2 → 3) if an alert isn't acknowledged
  • Alert acknowledgement with root-cause and corrective-action notes
  • Role-based user access and a complete audit trail (supports 21 CFR Part 11, GMP and GDP compliance)
  • Location hierarchy for multi-site monitoring (organisation → site → room → device)
  • Reports as graph, table or both; export to PDF, Excel and CSV
  • Calibration and mapping reports stored against each device and room, ready for audits
  • Substitute device while a logger is away for calibration, with its data merged back so there are no gaps
  • Consignment (in-transit) monitoring with journey reports
  • Door-open monitoring and hooter alarms

Accessories

Accessories

Accessory compatibility is confirmed by our team when we prepare your quote.

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  • External Hooter with Door Sensor

    Wi-Fi hooter giving instant audible alarms on any excursion. Supports up to 4 door sensors, with an alarm if a door stays open beyond the set time. One hooter can serve multiple loggers. Cable length configurable. 12 V DC adapter, 12 V external hooter. Logs door open/close and excursion events.

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  • Charging Dock

    Charges replaceable logger batteries so a charged spare is always ready, minimising downtime.

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FAQ

Setu Questions

Answers to what buyers ask most about this series.

Which Setu should I use for a deep freezer?

Choose Setu X or Setu Pro X. Their external probe is rated from −100 to +200 °C, so the probe sits inside the freezer while the logger stays outside.

What is the difference between Setu and Setu Pro?

The battery. Setu has a 3000 mAh battery; Setu Pro has a high-capacity 7000 + 7000 mAh battery. Temperature range and accuracy are the same.

Does Setu measure humidity?

No. Setu measures temperature only. For temperature and humidity together, choose the Nakshatra series.

How is Setu charged?

Through a universal USB Type-C port. The rechargeable Li-ion battery lasts about 3 months at a 10-minute logging interval.

Is Setu a WiFi data logger I can use for a vaccine fridge or cold room?

Yes. Setu X and Setu Pro X have an external probe on a 1 m cable, so the probe sits inside the fridge or cold room while the logger stays outside and syncs over your Wi-Fi. See the vaccine temperature data logger guide.

Related

Compare with Other Series

  • Rajmudra – 2-Channel WiFi Logger for Validation Studies
    2 channels

    Rajmudra

    2 × temperature, or 2 × temperature + humidity (Pro)

    Two-channel WiFi logger for temperature, or temperature and humidity, at two points.

    Range
    −100 to +200 °C · Pro: −30 to +70 °C, 0–100 %RH
    Get Solution
  • Dhruva – 4-Channel WiFi Logger for Multi-Point Monitoring
    4 channels

    Dhruva

    4 × temperature, or 4 × temperature + humidity (Pro)

    Four-channel WiFi logger for multi-point temperature or temperature and humidity.

    Range
    −100 to +200 °C · Pro: −30 to +70 °C, 0–100 %RH
    Get Solution
  • Veer – 10-Channel WiFi Logger for Warehouses
    10 channels

    Veer

    10 × temperature, or 10 × temperature + humidity (Pro)

    Ten-channel WiFi logger for warehouses and multi-zone facilities.

    Range
    −100 to +200 °C · Pro: −30 to +70 °C, 0–100 %RH
    Get Solution

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Ask About Setu

Tell us where it will be used and how many you need. We'll confirm the right variant and send you a clear, itemised quote.

WhatsApp us+91 98702 92760

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Industry
Connectivity