Monitor your cold chain logistics

Cold chain logistics is the temperature-controlled supply chain for products requiring refrigeration or freezing throughout storage and transport to maintain quality, safety, and regulatory compliance. In India, industries dependent on cold chain logistics include: food and beverages (dairy, meat, seafood, fresh fruits and vegetables, processed foods, confectionery); pharmaceuticals (vaccines, biologics, temperature-sensitive APIs and finished products with typically 2°C to 8°C or 15°C to 25°C requirements); chemicals (certain industrial and agricultural chemicals requiring temperature stability); and floriculture (cut flowers for domestic and export markets). India's cold chain infrastructure has grown significantly but remains under-developed relative to the country's food production scale, resulting in significant post-harvest losses.

Indian cold chain logistics faces several interconnected challenges. Infrastructure gaps — cold storage capacity, particularly pre-cooling facilities at farm level, is insufficient relative to perishable production volumes. Power reliability — cold chain integrity depends on uninterrupted power; frequent outages in many regions require diesel backup, adding cost and creating failure risk. Last-mile challenges — refrigerated vehicle availability at the sub-district level for farm-to-warehouse and warehouse-to-retail movements is limited, and smaller operators often use non-refrigerated vehicles for short distances, breaking the cold chain. Regulatory compliance complexity — food safety regulations under FSSAI and pharma cold chain guidelines under Schedule M require documentation, monitoring, and audit trails that many small operators cannot manage systematically. And high cost — cold chain logistics costs two to three times more than ambient logistics, limiting adoption for lower-value perishables.

Temperature monitoring in cold chain vehicles uses electronic sensors placed inside the refrigerated cargo compartment (typically at multiple positions — near the evaporator, at mid-load, and near the door — to detect temperature gradients). Sensors continuously measure and log temperature at configurable intervals (typically every 5 to 15 minutes). Data is transmitted to the fleet management platform over cellular connectivity, enabling real-time temperature visibility alongside vehicle GPS location. Alerts are generated immediately when temperature readings fall outside the specified range — both below minimum (freezer failure in a dairy chain causing partial thaw-and-refreeze) and above maximum (refrigeration unit failure or door left open). Data is logged with timestamps for regulatory compliance records.

FSSAI (Food Safety and Standards Authority of India) regulations for food cold chain operations require: maintenance of specified temperatures for different food categories throughout storage and transport; temperature monitoring records at all stages; personnel training in food hygiene; vehicle hygiene and sanitisation protocols; and traceability records linking each batch of food to its cold chain journey documentation. For pharmaceutical cold chain, Schedule M of the Drugs and Cosmetics Act requires validated cold chain equipment with calibrated temperature monitoring, documented temperature excursion management procedures, risk assessment for any excursions, and data retention for specified periods for audit. Both frameworks require automated, tamper-evident temperature logging rather than manual records — making digital monitoring a compliance requirement rather than optional.

Fleetx integrates temperature sensor data from refrigerated vehicles alongside standard GPS tracking, driver behaviour monitoring, and consignment management in a single platform. Temperature readings are displayed on the same dashboard as vehicle location, enabling operations teams to see at a glance which vehicles are maintaining specified temperature ranges. Automated temperature alerts fire immediately when readings go out of range. Temperature logs are stored with GPS location and timestamp for every reading, creating the tamper-evident compliance documentation required by FSSAI and Schedule M. Trip-level temperature reports can be generated and shared with customers or regulatory inspectors. For multi-compartment vehicles serving multiple temperature requirements in a single trip, Fleetx tracks each compartment independently.

Indian cold chain operations use several vehicle categories. Small insulated vans and three-wheelers without active refrigeration are used for short-duration last-mile deliveries where passive insulation maintains temperature adequately. Medium refrigerated vans (1 to 3 tonne payload) serve urban distribution for dairy, bakery, and pharmaceutical deliveries requiring door-to-door service in congested areas. Large refrigerated trucks (5 to 10 tonne) handle intercity primary distribution from cold storage hubs to regional distribution centres. Multi-axle refrigerated trailers transport bulk temperature-sensitive cargo on long-haul lanes — for example, bulk dairy from processing plants to distant markets. Reefer containers transported by truck provide flexibility for high-value pharmaceutical and export-quality food cargo where precise temperature control, data logging, and container integrity are paramount.