TWIG One Ex ATEX Lone Worker Device with Man-Down Alarm
TWIG One Ex is an ATEX/IECEx-certified lone worker alarm designed for hazardous industrial environments. Its intrinsically safe design makes it suitable for areas where explosive gases or non-conductive combustible dust may be present, within its approved classifications.
A dedicated SOS button triggers immediate manual alarms, while automatic Man-Down detection raises alerts after a fall, abnormal device orientation or prolonged inactivity. Amber alert provides enhanced monitoring when entering higher-risk situations. A high-power speakerphone with dual microphones and strong vibration alerts support communication in noisy areas.
The device integrates with compatible alarm receiving centres (MPTP over SMS and GPRS/IP) and with the TWIG Point cloud service for alarm monitoring, location tracking and remote device management.
Key features
- Intrinsically safe for Zone 1/2 gas and Zone 21/22 non-conductive dust areas
- Dedicated tactile SOS key with changeable key colour
- Man-Down alarm: device orientation, non-motion, free fall and impact
- Amber alert and geofence functions
- Hands-free two-way voice calls, speakerphone with 2 microphones, powerful vibration alert
- GNSS (GPS, GLONASS, Galileo) with AGNSS; optional SRD, Wi-Fi and BLE indoor location incl. floor-level identification
- Optional NFC reader (13.56 MHz) for attendance monitoring
- Remote configuration and firmware updates over the air (FOTA), SSL/TLS secured server connection
- IP67-rated, shock-resistant housing with tactile silicone keypad and LCD display
Technical data
| Ex marking (gas) | II 2 G Ex ib IIC T4 Gb |
|---|---|
| Ex marking (dust) | II 2 D Ex ib IIIB T130°C Db |
| Certificates | EESF 20 ATEX 045X / IECEx EESF 19.0020X |
| Ambient temperature | Ta -20°C to +60°C (recommended use -10°C to +50°C) |
| Ingress protection | IP67, shock resistant |
| Cellular | 2G/3G/4G; GSM 900/1800; WCDMA Bd 1/3/5/8; LTE-FDD Bd 1/3/5/7/8/20/28; LTE-TDD Bd 38/40 |
| Other radio | Optional SRD, Wi-Fi, BLE, NFC; Wi-Fi-only variant available |
| Location | GNSS GPS/GLONASS/Galileo, warm start <10 s, cold start <35 s; TWIG Point hybrid location |
| Battery | Rechargeable 1200 mAh Li-ion |
| Operating time (typical) | 8 days at 1 report/hour; 4 days at 1 report/10 min; 30 h at 1 report/min; 9 h at 1 report/5 s |
| Charging | < 4 h for 95 %; only outside hazardous areas using TWIG Ex safety cable/box FME92EU with 5-6 V DC USB charger |
| Dimensions | 102.1 x 48.9 x 24.6 mm |
| Weight | 130 g |
| Standard package | TWIG One Ex with integrated battery, TWIG Ex USB cable and charger, AU/EU/UK adapter, user and safety documents |
Supply in Saudi Arabia
TWIG products are supplied in Saudi Arabia by West Velocity Company, Al Khobar - quotation, delivery across the Kingdom and the manufacturer's documentation and certificates on request. Ask for a quotation by email (info@west-velocity.com) or WhatsApp.
Manufacturer information: www.twigcom.com
Datasheet / brochure: PDF
