Wet Bulb Globe Temperature Sensor, wet bulb globe temperature monitor, heat stress tracker, WBGT monitor, heat stress prevention

Heat Stress Sensor

HSS-100

Category: Sensors

Protect your workforce from heat-related risks with E4A's advanced Heat Stress Sensor - a cutting-edge device designed to help you manage heat stress with precision. Using Wet Bulb Globe Temperature WBGT), this sensor provides real-time environmental readings that factor in temperature, humidity, and radiant heat. More than just a sensor, it intelligently analyzes work conditions and offers clear guidance on individual cooling periods and recommended break schedules, promoting safe productivity in hot environments.

Ideal for construction sites, correctional facilities, industrial facilities, and warehouse facilities, this device ensures compliance with safety regulations and supports proactive health and performance management.

Optimized Break Planning

Analyzes exposure and workload to recommend personalized cooling period and rest breaks, reducing the risk of heat-related illness.

Real-Time Awareness

Delivers up-to-the-minute status updates and alerts, giving supervisors the insights needed to make fast, informed safety decision.

Productivity Protection

Helps maintain safe work rates without compromising performance by balancing environmental stress with proactive recovery strategies.

Regulatory Compliance

Supports adherence to OSHA, ISO, and industry heat stress guidelines with accurate, timestamped data for reporting and audits.

Simple Integration

Compact and wireless-ready, the WBGT Monitor installs quickly and fits into existing safety systems with minimal setup.

Team Health Insights

Monitors heat stress exposure levels across the work environment to help managers ensure safe conditions and prevent overheating.

Data-Driven Decisions

Empowers organizations with accurate environmental data to support planning,training, and operational risk assessments.

Proactive Risk Reduction

Identifies hazardous heat conditions before they become critical, enabling early intervention and safer work environments.

Brochure

Case Study

Potential Applications

Construction Sites

Athletic Training Centers

Industrial Facilities

Outdoor Event Environs

Measured Parameters

Humidity and Thermal Radiation

Ambient Temperature

Relative Humidity

Technical Specification

Main Power	Internal Battery (3VDC, 1550mAh LiMnO2)
Current Consumption	22uA
Battery Life	3 years @ 5min. reporting interval

Operating Temperature	-20ºC to +70ºC
Storage Temperature	-20ºC to +70ºC (With battery) -20ºC to +70ºC (Without battery)
Permissible Humidity	20-85% (operating and storage)
Ingress Protection Rating	IP30
Pollution Degree	2
Altitude	2000m

Thermal Radiation Sensor	PT100
WBGT Temperature	0°C to +60°C (±0.5ºC accuracy)
Dew Point	-35ºC + 49ºC
Dry Bulb	-40°C to 105°C (±0.1% accuracy)
Temperature Measurement	-30ºC to +75ºC (±0.2ºC accuracy)
Humidity Measurement	0-100% relative humidity (±1.5% accuracy)

Housing Material	Flame Retardant Polycarbonate/ABS
Physical Dimensions	Height: 132mm / 5.2 inches Width: 88mm / 3.5 inches Depth: 36.6mm / 1.4 inches
Weight	250g
Mounting	Magnetic mount (portable or fixed equipment)

Wireless Module	2.4GHz Bluetooth® 5 transceiver
Communication Range	200m line of sight
Reporting Interval	User programmable in 30s increments

Encryption

AES 128-bit crypto accelerator
ECC and RSA public key accelerator (PKA)
SHA2 accelerator (full suite up to SHA-512)
True Random Number Generator (TRNG)

Pushbuttons	1 pushbutton (device reset and pairing)
Status LED	2 status LED’s (red, green)
Alarm Range	User programmable

FCC

2AXVKHSS01

Industry Canada

26661-HSS01

Safety Standards

CSA C22.2 No. 61010-1-12

UPD1: Jul 2015

UPD2: APR 2016

UPD3: Jun 2023 and AMD 1:2018

UL61010-1 3rd Edition: 2023

What It Does

Features

5

24/7 Alarm Notifications:

Continuously monitors conditions and sends instant alerts when heat thresholds are exceeded.

5

Extended Battery Operation:

Ultra-low-power design, delivering over 3 years of continuous use at a 5-minute reporting interval.

5

User-Defined Reporting:

Generate custom reports based on your team’s specific needs, timeframes, and regulatory requirements.

5

Automatic Data Logging:

Securely records all measurements and events for traceability, audits, and long-term trend analysis.

5

Customizable Alarm Limits:

Set heat stress thresholds based on job roles, locations, or compliance standards to tailor alerts.

5

Wireless Data Transmission:

Transmits real-time heat stress data via Bluetooth® 5 to a gateway for live environmental visibility.

5

Work-Rest Recommendations:

Delivers real-time guidance on rest breaks and cooling periods based on current WBGT levels.

5

Fast, Scalable Deployment:

Compact and easy to mount-ready for rapid rollout across enterprise-wide operations.

5

Accessible Data:

Sends data through a secure gateway to a central dashboard for real-time viewing and trend analysis.

Real-Time Heat Monitoring at Your Fingertips

Monitor your facility’s heat conditions with ease using our intuitive E4A IoT Manager Dashboard.

Instant Heat Detection

The E4A IoT Manager provides a powerful way to monitor facility heat conditions in real-time through an intuitive online dashboard.

Sensor Mapping

Wireless WBGT sensors are mapped onto the building’s layout for precise location tracking.

Customizable Maps

Depending on the preference, our team creates either 2D or 3D maps of your facility or work with existing layouts to provide a clear spatial view of your environment.

Sensor Control

Within the E4A IoT Manager, you can enable or disable sensors, adjust reporting intervals, manage the system.

Data Analysis

User can view live and historical data for trend analysis.

Work Schedule Optimization

It allows you to plan work schedules more accurately, optimize work-rest ratios, and reduce the risk of heat-related incidents.

Graphing Capability

The system’s graphing capability allows you to observe trends and identify abnormalities.

System Health Insights

Gain insights into system health even when no alarms are present.

E4A IoT Manager

Unlock the full potential of your sensor network with E4A’s IoT Manager — a centralized platform designed to simplify how you manage, monitor, and analyze your HSS-100 Heat Stress Sensors in real time.

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