
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
Himachal Pradesh, India
WiFi and GSM temperature & humidity monitoring for Solan's pharma, cold chain and industrial sites.
Solan · Himachal Pradesh


About monitoring here
Solan is the district town on the road up from Kalka to Shimla, set on the first ridges of the hills, and it is known for mushrooms, horticulture and a university campus as much as for factories. A national mushroom research centre sits at Chambaghat, a horticulture and forestry university stands at Nauni, and farmers in the surrounding hills grow tomatoes, capsicum and other off-season vegetables for the plains. An old brewery, small units at Kumarhatti and along the highway, and the hospitals and schools of a busy hill town complete the picture. A temperature data logger in Solan therefore protects cultures and spawn in research cold rooms, vegetables and mushrooms waiting for a truck, medicines in the town's pharmacies and goods held at roadside depots. Prithvi supplies WiFi loggers for rooms and GSM loggers for vehicles and sheds beyond a router.
The air is temperate and damp for much of the year, the monsoon is heavy on the ridges, and winter nights fall cold enough to freeze water in unheated sheds, so stores need a low limit as well as a high one.
Areas
The national mushroom research centre and the growers and spawn makers around it keep cultures, spawn and fresh produce in cold rooms and incubators that must hold a narrow range.
The horticulture and forestry university runs laboratories, seed and sapling stores and fruit-handling rooms that hold samples and produce for long field trials.
Small industrial units, transport yards and godowns beside the national highway hold goods that change vehicles before the climb to Shimla or the descent to the plains.
Farmers bring tomatoes, capsicum and other vegetables from the surrounding hills to collection yards where crates wait for a truck bound for the plains.
Industries
Mushroom growers, vegetable traders and small food makers hold produce that spoils soon after a cooling failure, so a phone alert from a cold room matters most at night and in the picking season.
Research laboratories hold cultures, spawn, seed and samples in cold rooms and incubators, and a logged record shows a supervisor or a funder that conditions held across holidays and field seasons.
The regional hospital and private clinics of a hill town keep vaccines and medicines in refrigerators that must also survive winter power cuts and slow roads for deliveries.
Depots along the highway hold goods between the plains and the hills, and a logger in a consignment records how long it stood in a vehicle in the sun or the cold.
Recommended products
A starting point for the sites above. Our team will help you choose.

2 × temperature, or 2 × temperature + humidity (Pro)
Two-channel WiFi logger for temperature, or temperature and humidity, at two points.
Rajmudra in Solan: Two channels, one at each end of a mushroom cold room, show whether the whole room holds its range or only the part nearest the unit.

Temperature + humidity
Single-channel WiFi temperature and humidity logger, internal or external sensor.
Nakshatra in Solan: Temperature and humidity at one point suit a culture room or a produce store, where moisture in the air matters as much as the thermometer.

Temperature + humidity
SIM-based GSM logger for sites and vehicles without Wi-Fi.
Vayu in Solan: A SIM-based GSM logger rides in a truck on the hill road or reports from a collection yard with no Wi-Fi, which suits produce travelling to the plains.
These services are delivered by our parent lab, VEGA Calibrations.Ask us to plan them for your Solan 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
A temperature and humidity record from the growing and cold rooms shows how a crop was held, and an alert on a drifting reading reaches the grower's phone while the crop can still be saved. See how a Prithvi temperature data logger works.
Loggers are kept away from outer walls and doors where the night cold bites, and a low-limit alert is set next to the high one, so a shed that drops toward freezing is flagged as readily as a warm afternoon.
Send the place, the unit and a contact through the enquiry form, WhatsApp or a call, and we confirm how a visit would be arranged for the units along the national highway around Solan.
A logger stores readings on its battery when the signal drops and sends them when it returns, and a SIM-based Vayu logger can be chosen where the building has no Wi-Fi at all.
Locations
Tell us what you need to monitor and where in Solan. We will recommend the right loggers.