The ultimate smart safety helmet that integrates real‑time 4G communication, a 13MP live‑streaming camera, GPS tracking, and life‑saving environmental alerts — all in a rugged IP66 shell. Designed for construction, mining, utilities, and industrial workers who need to stay connected, safe, and productive in the most dangerous environments.
| Model | Stele ST-H400 |
| Type | Smart Connected Safety Helmet |
| Shell Material | High‑impact ABS with reinforced top ribs |
| Camera | 13 MP, 1080p Full HD video; infrared night vision |
| Field of View | 130° wide‑angle lens |
| Audio | 2W loud front‑facing speaker with AI noise cancellation; dual‑mic array |
| Push‑to‑Talk (PTT) | Dedicated hardware PTT button on helmet rim |
| SOS / Emergency | Dedicated SOS button; automatic man‑down, impact, and high‑voltage alerts |
| Cellular | 4G LTE (FDD/TDD), 3G, 2G — global bands |
| Wi‑Fi | 802.11 b/g/n/ac, 2.4 GHz & 5 GHz |
| Bluetooth | 5.0 BLE for sensors and accessories |
| GNSS | GPS, GLONASS, BeiDou, Galileo – real‑time tracking |
| Geo‑Fencing | Yes – configurable zones with entry/exit alerts |
| Storage | 64 GB onboard; optional cloud backup |
| Battery | 4000 mAh rechargeable Li‑Ion; 8–10 hours continuous streaming |
| Charging | USB Type‑C; magnetic charging port (optional) |
| Ingress Protection | IP66 dust‑tight & water‑resistant |
| Certifications | ISI, CE, ANSI Z89.1, MIL‑STD‑810G (vibration/shock) |
| Weight | ~580 g (with battery) |
| Operating Temperature | -20°C to +60°C |
| Accessories Included | USB cable, charger, spare padding, reflective sticker set |
| Warranty | 1 Year Manufacturer Warranty |
Make voice calls, send PTT messages, and stream live video directly from the helmet — no separate radio or phone needed. Keeps both hands free for work.
The front‑facing camera captures crisp 1080p video with IR night vision. Command centres can see exactly what the worker sees in real time.
Three large, tactile buttons on the helmet rim allow instant push‑to‑talk, emergency alert broadcast, and video recording — even with heavy gloves.
Loud, clear audio even next to heavy machinery. Dual microphones with AI noise suppression ensure your voice is heard without background clamour.
Stay connected on private LTE, Wi‑Fi networks, or public cellular. Bluetooth pairs with gas sensors, heart rate monitors, and other wearables.
Real‑time location tracking with multi‑constellation GNSS. Set virtual boundaries and instantly receive alerts when workers enter or leave a zone.
Dust‑tight and resistant to powerful water jets. The ABS shell meets ANSI Z89.1 and MIL‑STD‑810G standards for impact, shock, and vibration.
Automatic man‑down detection (no movement), impact (sudden acceleration), and high‑voltage proximity alerts. Each triggers an immediate SOS to the control room.
Stele ST-H400 is not just a safety helmet — it is a complete wearable communication and safety platform. Designed for the toughest industrial environments, it combines mandatory head protection with an integrated 4G smart device that keeps workers connected, visible, and protected around the clock. Construction supervisors, mining crews, utility linemen, and oil & gas field operators can now communicate, stream, and be tracked without carrying any additional devices.
Stay Connected, Hands‑Free: The ST‑H400 brings together voice calling, push‑to‑talk (PTT) group communication, live video streaming, and GNSS location tracking into a single head‑mounted unit. The 2‑watt speaker and dual‑microphone array with AI noise cancellation ensure crystal‑clear conversations even in the loudest environments. Large, glove‑friendly buttons on the helmet rim control PTT, video recording, and emergency SOS — no need to ever remove the helmet or touch a phone.
Live Vision for the Control Room: The built‑in 13‑megapixel camera with 130° wide‑angle lens streams 1080p Full HD video over 4G or Wi‑Fi, giving supervisors a real‑time view of the worker's perspective. Infrared night vision ensures clear footage even in dark tunnels, tanks, or night shifts. Footage is recorded locally on 64 GB of onboard storage and can be automatically uploaded to a secure cloud server for later review.
Safety Beyond Compliance: The ST‑H400 actively protects the worker. Built‑in sensors continuously monitor the helmet’s orientation and acceleration. If a fall is detected (man‑down), a sudden impact occurs, or the worker approaches a high‑voltage source, the helmet instantly transmits an SOS alert with the worker’s exact GPS location to the designated emergency centre. Geo‑fencing adds another layer of safety by alerting supervisors when personnel enter restricted or hazardous zones.
Rugged & Certified: The high‑impact ABS shell meets ISI, CE, and ANSI Z89.1 standards for industrial head protection. The entire electronic subsystem is sealed to IP66, protecting it from dust and powerful water jets. Tested to MIL‑STD‑810G for vibration and shock, the ST‑H400 operates reliably from -20°C to +60°C. A 4000 mAh battery provides up to 10 hours of continuous video streaming, and the USB Type‑C port allows convenient charging.
Why Choose Stele ST-H400? Because it replaces a helmet, a two‑way radio, a body camera, a GPS tracker, and a lone‑worker alarm — all with one integrated device that your teams already wear every day. Backed by a 1‑year manufacturer warranty and Electro Creators’ expert support across Maharashtra, Madhya Pradesh, and Chhattisgarh. We provide deployment planning, SIM integration, fleet management software setup, and user training. For a personalised quote or on‑site demonstration, contact our team today.