Heat Safety Guardian

WBGT (Wet Bulb Globe Temperature) is an index that takes into account environmental factors such as air temperature, humidity, wind speed, and radiant heat to assess the risk of heat stress that hot environments pose to the human body. It is also the heat stress assessment index adopted by the ISO 7243 international standard. Heat Safety Guardian calculates WBGT in real time from air temperature, humidity, and globe temperature, and proactively issues alarms when readings become abnormal.

The US has no federal standard specific to work in high heat. OSHA enforces against heat hazards under the General Duty Clause of the Occupational Safety and Health Act, and under its National Emphasis Program on Outdoor and Indoor Heat-Related Hazards it steps up inspections on days when the forecast heat index reaches 80°F (26.7°C). OSHA's proposed Heat Injury and Illness Prevention standard, issued in 2024, uses heat index triggers of 80°F and 90°F (26.7°C and 32.2°C) and also allows WBGT as an alternative; as of October 2026 it is still under review and has not been finalized. Several states have their own laws. For example, California requires shade to be available when outdoor temperatures exceed 80°F, starts high-heat procedures at 95°F (35°C) and above, and requires employers to measure, record and control heat hazards indoors when the temperature or heat index reaches 87°F (30.6°C); Maryland requires at least a 10-minute rest break every 2 hours when the heat index exceeds 90°F (32.2°C), and at least 15 minutes every hour when it exceeds 100°F (37.8°C). Rules vary by state, so please follow the current regulations in your state.

Heat Safety Guardian uses a three-tier synchronized alarm mechanism: on site, high-decibel, high-brightness audible and visual alarms alert workers immediately; at the same time, the system sends alarm notifications to managers via SMS, Email and App push notifications (LINE is also supported, and other messaging apps are coming online progressively) so they can keep track of site conditions remotely; and in the cloud, environmental data and event records from before and after each alarm are retained for later review and auditing.

The standard kit includes a solar power module and an NB-IoT communication module, so no additional power or network cabling is required. Installation is quick and easy, making it ideal for temporary construction sites or work areas where equipment is frequently relocated.

Yes. Alert thresholds can be customized to local regulations, guidelines or site needs. When a reading reaches a threshold, on-site alarms and real-time push notifications (LINE, SMS, Email, App) are triggered at the same time.

Yes. Besides outdoor work such as construction sites, road paving, and elevated rooftops, it is also suitable for high-temperature workplaces such as steel mills and high-temperature industrial plants.

The system automatically retains environmental data and event records from before and after each alert for later review, tracking, and auditing.

It comes with a one-year warranty, and an extended warranty is available. If the product fails during the warranty period, there's no need to send it in and wait for repairs: we ship you a replacement right away so your heat hazard monitoring is back up and running as quickly as possible. After the warranty expires, units can be returned to our factory for repair. Actual warranty terms are subject to your quotation.

Connection frequency bands, local telecom networks, and certification requirements vary by country. Please tell us the country and site where the product will be used, and we will confirm the suitable communication version and supply arrangements.