Temperature, Humidity & Toxic Gas Monitoring for Plastics Factories with iNut: Protecting Workers, Threshold Alerts

In a plastics factory, the working environment is far harsher than it looks. Injection and extrusion machines run at 180–300°C, radiating intense heat around the die area; molten plastic and pelletizing release volatile organic compounds (VOCs), styrene, formaldehyde, CO gas and fine plastic dust. Machine operators stand in that air for hours — yet the most dangerous part is colorless, with no obvious smell, and the harm accumulates silently.

The old approach is manual spot checks a few times per shift, logged by hand, then... hoping for the best. But toxic gas doesn't wait for the next reading to cross the limit: a leaking valve, a scorched batch of plastic, or a failed exhaust fan is enough to send concentrations spiking within minutes — and by the time a handwritten log catches it, workers have already breathed it in. iNut flips that around: let sensors stand watch instead of people, let data drive decisions, and let the system act on its own the instant the air turns bad.

Plant safety starts with measuring the right things. iNut connects dedicated sensors for every hazard specific to the plastics industry: temperature & humidity around the machines, VOC / styrene / formaldehyde (vapors from hot plastic), CO gas (incomplete combustion), and fine PM dust from grinding and pelletizing. Everything flows into one standardized, real-time data stream — independent of memory or shift handovers.

Plastics plants are large, packed with machines, full of electrical noise, and frequently rearranged — running signal cable is both costly and hard to maintain. iNut RS485 reads sensors right at the machine and transmits over WiFi Mesh: nodes relay signal to each other, reaching even blind spots behind production lines. Outdoor stations (storage tanks, exhaust treatment areas) can run on solar power, so power supply is never a worry.

Measuring alone isn't enough — what matters is a system that acts on its own. Set the thresholds once: VOC or CO exceeds the safe level → exhaust fans and ventilation automatically speed up; machine-area temperature runs too high → cooling fans, relief valves open; a dangerous threshold is breached → relay cuts material feed / stops the machine. iNut PC runs the control logic right on site (at the edge), with no need to wait on the network — reacting in an instant.

When something's abnormal, people need to know right away. iNut PC pushes alerts via Email and Telegram to the shift supervisor, safety team and on-duty staff within seconds — including the machine location, the exceeded reading, and the timestamp. If the Internet drops, the 4G uplink keeps the alert channel open. No more "found out at the end of the shift" — every toxic-gas incident gets noticed and handled right away.

All data converges into the iNut Platform — a self-hosted cloud with an intuitive SCADA dashboard: plant floor layout, temperature – humidity – toxic-gas readings by zone, trend charts and alert history. Managers can open the iNut app on their phone to see the status of every machine, change thresholds, and turn devices on/off remotely. Data is fully archived by iNut Datalogger for traceability and occupational-safety reporting.

Plastics plants rarely start from a blank slate: PLCs, VFDs, weighing scales and compressed-air systems are already in place. iNut doesn't force you to replace anything — iNut OPC talks to PLCs and industrial equipment over OPC UA / Modbus / XML-DA, pulling machine data into the same place as the environmental sensors. That's how the safety monitoring system plugs directly into your existing line, rolled out zone by zone without stopping production.

// Quick specs