
Setu
Temperature
Single-channel WiFi temperature logger with an internal sensor or external probe.
- Range
- −30 to +70 °C · −100 to +200 °C with external probe
Sa'dah Governorate, Yemen
WiFi temperature & humidity monitoring for Sa'dah's pharma, cold chain and industrial sites.
Sa'dah · Sa'dah Governorate


About monitoring here
A logger in Sa'dah is arranged case by case, whether for food and beverage or hospital and blood bank sites. Sa'dah is a walled town in the high mountains of northern Yemen, set on a plain among terraced slopes, and a temperature data logger here serves a market town of old mud-brick houses in a cold, dry climate. The old city's walls and gates still frame the central market, where traders sell fruit, grain, spices, leather goods and household supplies to the valleys around. Growers on the terraces produce grapes, pomegranates and grain, and clinics and hospitals serve a wide mountain district. Winter nights are very cold, summer days are bright and warm, and rain falls mainly in a short season. The loggers hold readings in memory on battery power when no network is present. We review each request from Sa'dah case by case.
The air is thin, dry and bright, winter nights fall well below freezing at times, and summer afternoons can be warm, so fruit stores and clinic refrigerators swing between frost and warmth. Thick mud-brick walls even out the day but are slow to warm after a cold night, and a store room may hold winter chill into the afternoon before the sun reaches it. Rains in summer bring brief damp into rooms that are otherwise very dry.
Areas
Traders in the old market sell fruit, grain, spices, leather goods and household supplies from small shops and back rooms in thick-walled buildings.
Growers keep grapes, pomegranates and grain in sheds and cellars near the terraces, where frost and warmth both threaten the harvest.
Hospitals and clinics serve a wide mountain district and keep vaccines, insulin and samples in refrigerators that must hold their range through every interruption of power.
Wholesalers hold medicines and packaged food in rooms that chill on clear nights and warm in the afternoon sun.
Industries
Sa'dah fruit dealers, grain merchants and grocers hold goods that suffer from frost and from warmth, and a log from each store shows a buyer how a lot was kept after harvest.
Sa'dah hospitals and clinics hold vaccines and blood products for mountain villages, and a phone alert reaches the person on duty if a refrigerator drifts in the small hours.
Medicine wholesalers and pharmacies in Sa'dah keep stock to labelled ranges, and a dated record shows how a room behaved from a frosty dawn to a warm afternoon.
Goods reach Sa'dah over mountain roads, and a logger placed in a load shows how long it stood in a cold or sunny vehicle before reaching a small store.
Recommended products
A starting point for the sites above. Our team will help you choose.

Temperature
Single-channel WiFi temperature logger with an internal sensor or external probe.
Setu in Sa'dah: One probe on a short cable fits a ward or pharmacy refrigerator in Sa'dah and leaves the way staff use the unit unchanged.

4 × temperature, or 4 × temperature + humidity (Pro)
Four-channel WiFi logger for multi-point temperature or temperature and humidity.
Dhruva in Sa'dah: Four channels follow a fruit cellar at several heights and beside the door, showing which shelf is first to chill or warm.

2 × temperature, or 2 × temperature + humidity (Pro)
Two-channel WiFi logger for temperature, or temperature and humidity, at two points.
Rajmudra in Sa'dah: Two channels read a wholesale store at the door end and the far wall, showing whether frost or sunlight reaches the back.
GSM versions are available. Contact us to confirm network compatibility for your country.
These services are delivered by our parent lab, VEGA Calibrations.Ask us how they can be arranged for the loggers you use in Sa'dah.
Process
Tell us what you store, where, and how many points need watching.
We recommend the loggers and quantities for your sites by call, WhatsApp or video.
Your enquiry is handled remotely from India, and the agreed loggers are registered to your dashboard.
We set up alert rules and user access with your team remotely and stay available as sites change.
Why Prithvi
FAQ
Yes. Grapes and pomegranates can be damaged by frost as easily as by warmth, so a continuous log shows swings that a single spot reading would miss. See how a Prithvi temperature data logger works.
A single logger with a phone alert is enough for one vaccine refrigerator when a router is nearby, and the account can take further points later.
Pass on the town, what you keep and a contact using the enquiry form or WhatsApp. Requests from Yemen are looked at case by case, and we reply with what seems practical.
VEGA Calibrations, our parent company, looks after calibration of loggers and probes for Sa'dah sites; tell us the model and range and we outline the options.
Locations
Tell us what you need to monitor and where in Sa'dah. We will recommend the right loggers.