The SL-3 is a legacy RBtec product and is no longer supplied for new installations.
This page is kept for reference and for sites with SL-3 systems already in the field. For new perimeter projects, IRONCLAD or RaySense are the current RBtec fence-mounted vibration sensors. The alternatives are listed below — or get in touch and we will help you specify a replacement.
Current RBtec alternatives to the SL-3 Shaker Sensor
The direct successor. A fence-mounted vibration detection system with an armored sensor cable attached directly to the fence, detecting cutting, climbing, lifting and jump-over attempts.
RBtec’s microphonic sensor cable for fence-mounted perimeter detection.
RBtec’s fiber optic perimeter fence security system.
The SL-3 Vibration Perimeter Alarm System
The SL-3 was a fence-mounted sensor line combining detection ability, reliability and price. The SL-3 electronic shock vibration fence sensor cable provided 32 levels of sensitivity and accurate response to vibration frequencies on the fence caused by cutting, climbing or lifting — 360 degrees around the sensor, in three axes.
The SL-3 shaker sensor was supplied tested and pre-assembled in 3 m / 10 ft intervals, ready to mount on any new or existing perimeter fence: wire, chain link, welded mesh, razor coil or barbed wire. The sensor was maintenance free thanks to 10 gold-plated contact points, and was self-cleaning, allowing a very low false alarm rate.
- 32 levels of sensitivity
- Self-adjusting, no calibration needed
- Automatic contact cleaning
- 10-year sensor cable warranty, over 20-year lifespan
Specifications
Sensor cable
| Operating temperature | −45 °C (−49 °F) to +70 °C (+158 °F) |
| Capsule enclosure | Injection-moulded high-resistance plastic |
| Capsule size | 69 × 42 × 30 mm (2.7″ × 1.65″ × 1.18″) |
| Weight | 50 g |
| Comm cable | Shielded AWG six-wire cable |
| Life expectancy | 15 years field operation |
SPU signal processing unit
| Includes | SPU-2004 transponder card, LP-05 lightning protection card, E-Clips 6, E-Clips 10 |
| Input voltage | 8.5–32 VDC |
| Current consumption | 10–35 mA at 15 VDC |
| Transponder card internal voltage | 5 VDC |
| “No alarm” input voltage | 2.5 VDC |
| Open circuit “alarm” | 4.5–5 VDC |
| Short circuit “alarm” | 0–1.5 VDC |
| Communications | RS-485 channel |
| Processing | Alarm yes/no decision, 8-zone signal processing |
| Size | 100 × 250 × 190 mm (4″ × 10″ × 7.5″) |
| Weight | 1 kg (2 lb) |
