The USB-LP-2 is a dual-channel loop detector with a USB interface, letting installers change and monitor settings in real time. With four relay outputs, direction detection and interference suppression, the detector suits applications with separate inbound and outbound traffic.
Model: USB-LP-2
Type: Loop detector, dual-channel, low-voltage
Communication: USB interface for configuration and monitoring
Relay outputs: 4 (2 per channel)
Power supply: 12-30 VDC or 12-24 VAC
Sensitivity levels: 10, adjustable
Features: AB Logic direction detection, DETECT-ON-STOP, ULTRAMETER diagnostics
Housing: anodized aluminium
Operating temperature: -40°C to +82°C
During the installation and maintenance of a loop detection system, a recurring bottleneck is that settings like sensitivity, frequency, and relay configuration are often only adjustable via small pushbuttons on the housing itself, with no direct insight into what the detector is actually registering. When something goes wrong, this usually means guesswork: is sensitivity too low, is there crosstalk between two loops, or does the issue lie elsewhere. The USB-LP-2 is built to simplify this process by connecting the detector directly to a computer.
The USB-LP-2 monitors two vehicle detection loops simultaneously, with separate presence indication per loop and two configurable relay outputs per channel, four in total. For applications where both an entry and exit need to be detected, for example, this means one detector suffices where previously two separate units were needed.
Through the USB interface, an installer can change detector settings while simultaneously watching live how the detector responds to vehicles, rather than relying on a single LED indicator. That makes fine-tuning sensitivity and troubleshooting considerably more direct: the technician sees in real time what's happening, instead of having to conclude afterwards what likely went wrong.
The AB Logic function allows the detector to determine a vehicle's direction of travel based on the order in which two loops are activated, relevant for applications where inbound and outbound traffic need to be registered separately. The DETECT-ON-STOP function ensures the detector only responds once a vehicle has actually come to a stop on the loop, ignoring cross traffic in a tight layout rather than triggering incorrectly.
In loop detection, the optimal sensitivity level varies significantly by vehicle type and loop size: a truck on a large loop calls for somewhat different settings than a passenger car on a smaller loop. The USB-LP-2 offers ten adjustable sensitivity levels and compatibility with a wide range of loop inductances, giving installers room to find the right balance between reliable detection and avoiding false triggers on a per-project basis.
The USB-LP-2 is mainly used at parking systems and access gates with two separate traffic flows, such as a combined entry and exit, or two separate lanes controlled by the same control panel. For installation companies that regularly configure loop systems, the USB connection is a practical tool at handover: settings can be documented and easily retrieved later during maintenance.
Secumatic supplies the USB-LP-2 as part of the complete loop detector range, with support on specification and project advice for installers and technical service providers. Get in touch for advice on the right detector for your project.
