SIAC Twilight
Every year, many orienteers look forward to our new special edition – and for 2027, we have created something truly exceptional. The SIAC Twilight captures that magical moment when the sun sets after crossing the finish line and the sky glows in deep violet and gold.
A unique golden design unfolds across the dark violet casing, combining a compass rose, stars and orienteering control markings. Together, these elements make the Twilight a true highlight for everyone who loves orienteering.
The deep violet casing is made from 100% recycled material. The individual structure of the recycled material makes every SIAC truly one of a kind.
The SIAC Twilight is strictly limited to just 500 pieces worldwide. It will be available from 2 November 2026 – whilst stocks last.
The SIAC adapts to your needs and preferences, as it has a wide range of applications (Running, Mountain biking, Orienteering races etc.) Be sure that it won’t stop operating in the middle of the race, as SIAC is energy-efficient and will work for years with one battery. Whether you are an athlete or an event organiser — The SIAC is an amazing solution because it does half of the job for you.
For added security and to prevent the card from being lost during an intense run or a fall - even when using an Elastic finger band - we recommend using a Safety Cord.
Strap is included.
| Specifications | |
| Model type | Finger stick |
| Number range | 8.000.001 ... 8.999.999 |
| Typical application | Orienteering, MTB, Enduro, Triatlon, Trial and other outdoor sports |
| Data exchange time | 60 ms |
| Time resolution | 4 ms / 50 ms depending on operation mode |
| Clear time | < 0.5 s |
| Readout time | RFID < 4 s, SRR < 1 s |
| Frequency RFID | 125 kHz |
| Frequency Funk | 2.4 GHz (Short range radio) |
| Registration feedback signal | Optical (red LED) and acoustical (piezo buzzer), user configurable |
| Turn ON AIR+ | By CHECK or SIAC-ON, slowly flashing green LED indicates ON state |
| Turn OFF AIR+ | By FINISH or SIAC-OFF |
| Intermediate times | 128 |
| Special records | CLEAR, CHECK, START, FINISH |
| Time format | 24h-format, day of week, counter for up to 4 weeks |
| Firmware Card | RFID V4.0 and higher, SRR V4.0 and higher, not user configurable |
| SI-System compatibility, Firmware stations | SI-Stations BSF7/8, firmware V6.00 and higher SI-Stations BS11, firmware V2.14 and higher |
| Operating range | -20°C ... +50°C |
| Protection class | IP 67 (DIN EN 60529) – Protection against penetration of dust – Protection against the ingress of water during short-term immersion |
| Battery life time | Up to 4 years |
| Battery exchange | By SPORTident |
| Warranty | 2 years, except battery |
| Weight | 11g |
| Dimensions | 68 mm x 21 mm x 12 mm |
| Colours | 4 basic colours for body, white tip with logo |












