TWIG Beacon Ex SRD ATEX Indoor Location Beacon for Lone Worker Alarms
TWIG SRD beacons provide location information where satellite-based positioning is unavailable or unreliable, indoors and underground. Beacon information is transmitted to the alarm receiving centre as part of the alarm message.
The TST90EX is the ATEX-certified model for potentially explosive atmospheres such as oil and gas, chemical processing and energy production sites. Standard-range or reduced-range versions allow larger cells or more precise, floor-separating cells.
Key features
- ATEX version: II 2 G Ex ib IIC T4 Gb, Zone 1, Category II gas, intrinsically safe
- Operational immediately after installation, no location server required
- Over-the-air configuration with TWIG Beacon Configuration Adapter and PC application
- Integrated 19 Ah lithium primary battery, up to 4 years typical operation
- Scalable coverage up to 20 000 m2 per beacon (depends on building and device)
- Standard or reduced range models; EU or AU frequency
Technical data
| Ex marking | II 2 G Ex ib IIC T4 Gb |
|---|---|
| Temperature class | T4 |
| Operating temperature | -20°C to +60°C |
| Ingress protection | IP67 |
| Power supply | Lithium primary battery 19 Ah (integrated) |
| Operating time | Up to 4 years typical |
| Operating frequency | 869.675 MHz (EU), 918.675 MHz (AU) |
| Transmitting cycle | 4-99 s adjustable |
| Transmitting power | -30 dBm to +5 dBm |
| Typical range | Standard range 5-80 m, reduced range 1-20 m depending on TX level |
| Compatibility | TWIG personal alarms with SRD or SRD3 option |
| Dimensions | 80 x 82 x 56 mm |
| Weight | 305 g with battery |
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
