Temperature & Humidity Monitoring System for Storage, Labs and Production

Many products fail on moisture before they fail on heat. A tablet labelled "store below 25°C, protect from moisture" is out of specification in a monsoon warehouse at 24°C and 85% RH, and a paper-based record will rarely show it. Monitoring both values from the same point, on the same timeline, is what lets a QA team prove storage conditions rather than assume them.

The model number tells you where the sensor sits. The "50" models (WTH50, MTH50) have a built-in sensor for ambient rooms between 0°C and +50°C: mount the unit on the wall and it measures the air around it. The "70" models use an external probe from about -20°C to +70°C, and the "120" models (WTH120, MTH120, ETH120) use an external probe from -40°C to +120°C, so the logger and its display stay outside a cold room or chamber while the probe sits inside.

Where a room needs more than temperature and RH, for example CO2 or differential pressure, the Wi-Fi WC-X and 4G MC-X customised room-parameter systems log and alert on sensors chosen for that site.

Pick the link that suits the building. Wi-Fi models join the site network; 4G models carry a built-in M2M SIM and need no IT approval or router; Ethernet models suit plants that prefer wired devices; the offline OTH70 records locally where there is no network at all. Connected loggers raise app and email alerts, with SMS as an option, when a reading crosses its limit, and reports can be exported as PDF, CSV or Excel with the audit trail an inspector expects under 21 CFR Part 11.

As a starting guide, a small store room with one rack line can often be covered by one logger at the product position, with a second near the door if it is opened frequently. Larger warehouses, rooms with high racking and anything regulated should be mapped first: a mapping study shows the hot, cold and humid spots across heights and seasons, and the continuous monitoring points are then placed at the worst-case positions. Our team can help size the number of points from a floor plan.

Ideabytes loggers are designed and manufactured in India, supported by India-based engineers and available through the Government e-Marketplace (GeM). Temperature and humidity loggers carry HSN code 90258090. NABL-traceable calibration certificates are available on request, and our Expert Check service reviews your rooms before you order.