
Nakshatra
Temperature + humidity
Single-channel WiFi temperature and humidity logger, internal or external sensor.
- Range
- −30 to +70 °C · 0–100 %RH
West Bengal, India
WiFi and GSM temperature & humidity monitoring for Kolkata's pharma, cold chain and industrial sites.
Kolkata · West Bengal


About monitoring here
Kolkata is an old port city on the Hooghly, and its storage follows the river and the railway: warehouses on the Howrah side, the industrial township at Kalyani to the north, the logistics belt around Dankuni and the port-side godowns that handle goods bound inland and overseas. A temperature data logger in Kolkata is as often watching a medicine distributor's back room or a cold store for fish, dairy and sweets as it is a plant floor. The air is hot and humid for most of the year and the monsoon is long, so cold rooms fight condensation and cartons absorb moisture in every godown. Wireless loggers with alerts to phones and email, and a record that continues through a cut, give distributors, hospitals and cold stores a dated account of how a room really behaved.
Hot, humid air and a long monsoon keep condensation on cold-room doors and moisture in cartons for most months, and pre-monsoon storms are a frequent cause of sudden power cuts.
Areas
An older industrial and warehouse district across the river, with engineering works, godowns and wholesale trade packed along roads that feed the railway and the bridges.
A planned industrial township to the north with pharmaceutical, engineering and food plants on regular plots, more spread out than the older districts.
A logistics and manufacturing belt to the north-west beside the highway, with distribution warehouses and consumer-goods and food units on large plots.
Godowns near the river port hold goods that wait for a vessel or a rake, with long dwell times in warm, damp air.
Industries
Distributors who supply chemists across eastern India hold medicines in crowded back rooms, and a log with a time for each excursion answers a buyer's query about a storage lapse.
Cold stores for fish, dairy and sweets run chambers that are opened through the day in humid air, so a reading every few minutes shows what each loading did to the room.
Hospitals and diagnostic centres keep blood storage and vaccine fridges that depend on a steady supply, and an alert to the duty staff covers the minutes when the mains and the generator are both out.
Port and rail-linked godowns hold goods for long periods before they move, and a record for each bay shows how a lot fared while it waited.
Recommended products
A starting point for the sites above. Our team will help you choose.

Temperature + humidity
Single-channel WiFi temperature and humidity logger, internal or external sensor.
Nakshatra in Kolkata: Reads humidity along with temperature, which tells a godown or a chilled store when damp air has overcome its dehumidifier or a door seal.

16 × temperature, or 16 × temperature + humidity (Pro)
Sixteen-channel WiFi logger for large facilities.
Virat in Kolkata: Sixteen channels cover a long port-side shed or a Dankuni distribution hall across racks and dock doors, so one report shows the whole building.

Temperature + humidity
SIM-based GSM logger for sites and vehicles without Wi-Fi.
Vayu in Kolkata: A GSM logger with an external probe rides in a van or a railway wagon, reporting from places a building's Wi-Fi never reaches.
These services are delivered by our parent lab, VEGA Calibrations.Ask us to plan them for your Kolkata site alongside your loggers.
Process
Tell us what you store, where, and how many points need watching.
We look at the layout and conditions, by call or on a site visit, and recommend the right loggers.
Loggers are supplied and installed, then connected to your dashboard and alert recipients.
We stay available for alert rules, user access and calibration planning as your sites change.
Why Prithvi
FAQ
We plan them in a sequence that follows the roads, since the three lie in different directions from the city. Send the sites, the rooms and a contact at each and we propose an order. See how a Prithvi temperature data logger works.
Probes sit away from the door seal and the evaporator, and an alert on a door left open catches the usual cause of icing and fog before it builds up on the shelves.
Loggers keep recording on their batteries through the cut and send stored readings when the network returns, and an alert for a lost mains supply goes to the named person.
Loggers and probes used in a Kolkata hospital or cold store can be calibrated by VEGA Calibrations, our parent company, and we time the work so the certificates are current when an inspector is due.
Locations
Tell us what you need to monitor and where in Kolkata. We will recommend the right loggers.