Orders placed after 4pm on weekdays will not ship until the next business day. Orders placed after 12pm Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
The Smart LineSL-350QFR Battery Powered Quad-Beam Photoelectric Detector from Optex offers detection up to a distance of 350' without requiring any trenching or wiring. The unit includes a multi-functional backbox that accepts most manufacturers wireless transmitters, and comes with four batteries per set, with the option of expanding to eight for up to 10 years of battery life. In addition, the SL-350QFR is compatible with the AX-TW200 line of beam towers for a clean, concealed, wireless mounting option. The SL-350QFR is well suited for perimeter protection where labor costs or trenching is an issue.
The sniper viewfinder telescope lens allows a high level of visibility and magnification for optical alignment work. Even at maximum installation distance, the viewfinder increases the probability of optimal alignment. Also, the IP65 weather protection allows the SF-QFR beam to be protected from interruption caused by insects, dirt, sand or humidity.
Quad beam detection
4-channel selectable beam frequency
Long battery life (2 batteries per transmitter and receiver included)
Compatible with most major wireless transmitters
Triple tamper function
Beam interruption adjustment function
Sniper viewfinder for easy alignment
High grade aspherical lens
IP65-rated weather protection
Intermittent output function
5 to 10 years battery life operation for detector
Battery saving function
Suitable for commercial, industrial, or residential applications, both indoors and outdoors
Transmitter: approximately 4 years Receiver: approximately 5 years
Alarm output: From C-Solid state switch: 3.6 VDC, 0.01 A Alarm period: 2 seconds (+/-1) nominal D.Q Output: From C-Solid state switch: 3.6 VDC Low battery: Receiver only N.C Mechanical switch: 3.6 VDC, 0.01 A (Transmitter and receiver) Tamper output: N.C (contact output): 3.6 VDC, 0.01 A opens when cover, main unit or back box is removed (Receiver only)
Alarm indicator (Receiver): Alarm: On, Light receiving: Off Level indicator: No light receiving: Off, Light receiving: Flickering or Off Power Indicator: Power On: On, Power Off: Off Low Voltage Indicator: Voltage reduction: Flickering
+/- 90° Horizontal, +/- 10° Vertical
-4 to +140°F (-20 to +60°C)
Dimensions (H x W x D)
17.9 x 3.3 x 5.4" (45.4 x 8.3 x 13.7 cm)
7.25 lb (3.28 kg), Total weight of transmitter and receiver excluding the accessories