Smart city roadside units, traffic signal controllers, and environmental monitoring sensors are often not installed in climate‑controlled indoor equipment rooms, but rather in roadside cabinets, substations, or even on outdoor utility poles. Environmental conditions at these locations are far harsher than commonly imagined. Under direct summer sunlight, temperatures inside sealed protective enclosures can exceed 70 degrees Celsius. During winter cold snaps, outdoor temperatures can drop below minus 30 degrees Celsius. For power supply, voltage drawn from meter sides or solar panels can fluctuate widely due to line length, load variations, or weather conditions. Ordinary commercial gateways under such conditions often freeze due to overheating in their first summer, or fail to start in their first winter due to low temperatures causing crystal oscillator unlock. Tespro's 4G/5G industrial gateway was designed from the ground up with these harsh environments as core use cases, with an operating temperature range covering minus 40 degrees Celsius to plus 75 degrees Celsius — far exceeding ordinary commercial device specifications.
Beyond wide‑temperature design, Tespro gateways also fully consider power supply adaptability. They support 5 to 30 volt DC wide voltage input, working stably whether drawing power from a 12V battery, a 24V solar panel, or a meter‑side voltage transformer. The gateways also feature dual power supply paths, supporting both DC jack and DC terminal block power interfaces, allowing engineers to choose the most convenient wiring method based on site conditions. For equipment installed in roadside cabinets or on outdoor poles, this power supply flexibility means no need for additional voltage regulators or DC‑DC converters, reducing failure points and overall cost. Combined with DIN‑rail mounting design, Tespro gateways mount conveniently on standard rails like other industrial control equipment without screws, greatly simplifying on‑site installation.
Do Tespro industrial gateways require additional cooling or heating devices for outdoor installation, and what are the benefits of wide voltage input?
No. Tespro gateway operating temperature range already covers minus 40 to plus 75 degrees Celsius, requiring no additional cooling fans or heaters within this range. The advantage of wide voltage input is the ability to draw power directly from multiple power sources without additional voltage regulators, reducing failure points and system cost.
Tespro gateway reliability in outdoor deployments is also reflected in physical construction and certifications. Compared to plastic housings, sheet‑metal housings offer better thermal conductivity, quickly transferring internal heat to the exterior and avoiding localized overheating. Additionally, sheet metal does not become brittle in low temperatures like some plastics, offering stronger impact resistance. The gateways have also passed rigorous EMC electromagnetic compatibility testing, resisting electromagnetic interference from nearby power lines and electrical equipment. The products also hold hazardous environment certifications including C1D2, ATEX, and E‑Mark, deployable in oil, gas, chemical, and other locations with stringent equipment safety requirements. For system integrators and municipal departments deploying smart city sensing layers at scale, choosing an industrial gateway truly designed for harsh outdoor environments means lower failure rates, fewer on‑site maintenance visits, and longer equipment service life — advantages that translate into very substantial operational cost savings at the scale of hundreds of sites.
