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    • Home  / Product Manuals & Documentation
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    Optex Virtual Loop 2.0 (OVS-02GT) — Vehicle Presence Sensor Specifications

    August 31, 2026 3 min read

    Technical specifications for the Optex Virtual Loop 2.0 (OVS-02GT) — a radar-based vehicle presence sensor for gates and barriers, eliminating the need for in-ground loops.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Technical specifications for the Optex Virtual Loop 2.0 (Model OVS-02GT) — a vehicle presence sensor for gates and barriers, using Distance Measuring Radar in place of in-ground loops.

    Overview

    The Virtual Loop 2.0 reliably detects vehicles of all sizes while ignoring nearly all human movement, eliminating the hassle of installing and servicing in-ground loops. It provides reliable activation and presence detection for gate applications.

    Key Features

    • 26 ft extended detection range
    • No cutting, coring, or drilling of concrete or asphalt required
    • Presence detection for all types of vehicles
    • Can be programmed to ignore or detect humans, depending on the application
    • Settings configured via smartphone app
    • Direct conduit access or direct installation for a single gang box
    • Flexible 12–24V AC/DC power supply
    • 96° wide-angle adjustment (left/right)
    • Improved built-in heater
    • Visible status indicator
    • IP66 & NEMA4 rated water resistance
    • 2 outputs
    • Improved human cancellation
    • Extremely stable under all weather conditions

    Specifications

    Spec Value
    Model OVS-02GT
    Detection method Microwave (FMCW)
    Frequency Microwave 24GHz; BLE communication 2.4GHz
    Response Min 500ms
    Supply voltage 12 to 24 VAC/DC
    Power consumption Heater enabled: up to 300mA; heater disabled: up to 90mA (at 24V)
    Output — Spec 1 Non-voltage solid state relay output, 30VDC 0.3A or less (resistance load), N.O./N.C.
    Output — Spec 2 Non-voltage mechanical relay output, 30VDC 1A or less (resistance load), N.O./N.C.
    Output delay Off / 0.5 / 1 / 2 / 3 / 4 sec
    Output hold timer Off / 0.5 / 1 / 2 / 3 / 10 / 30 / 60 sec
    Output mode Detection / Pre-detection / Mask
    Output type Holding / Pulse IN / Pulse OUT
    Pulse time duration 150ms / 250ms / 500ms / 1s
    Input spec N.O. contact non-voltage relay input; ON resistance ≤100Ω, OFF resistance ≥200kΩ; internal pull-up voltage ~3.3V
    Input mode Link (OR gate) / Link (AND gate) / Inhibit / Wake
    Applications Barrier (Activation, Protection); Slide gate (Activation, Protection); Swing gate (Activation, Protection, Shadow)
    Detectable vehicle speed 1.2 to 22 mph (2 to 35 km/h)
    Detection range 7 ft (1.5m) to 26 ft (8m), 20 in (0.5m) pitch
    Main / fine-tuning / close-range sensitivity Level 1 to 7 (each)
    Side approach detection Off / On (2.5s)
    Vibration sensitivity Off / Low / Middle / High
    Sensitivity boost Off / Low / Middle / High, with boost timer Off/0.5/1/2/3/4/5/10/20/40 sec
    Relay response time Level 1 to 4
    Presence detection timer 5 / 15 / 60 / 180 min / Infinity
    Slide gate cancellation Off / On
    On/Off switching Via smartphone app or by holding a magnet close to the unit
    Ambient temperature -22°F to 122°F (-30°C to 50°C)
    Operating humidity 95% max, no condensation
    Degree of protection IP66 / NEMA4
    Installation location Indoor / Outdoor
    Installation height 20 in (500mm) from road surface to bottom of unit
    Sensor angle adjustment Left/right ±96° (3° pitch)
    Weight 21oz (600g) including accessories
    Accessories included 4 attached screws (2× M4 x 12 metric coarse thread, 2× 4 x 20 tapping screw), quick reference guide

    Status Indicator Reference

    • Standard operation: Standby = solid green; Detected = solid red; Bad environment = solid purple; Calibration incomplete = solid blue; Wake up = solid blue for 3 seconds; Completed reset = fast blinking blue for 2 seconds.
    • Smartphone App — setting detection: Standby = slow blinking green; Detected = slow blinking yellow; Bad environment = slow blinking purple; Calibration incomplete = slow blinking blue.
    • Smartphone App — area check: Standby = slow blinking green; Pre-detected = slow blinking yellow; Detected = slow blinking red.
    • Calibration: In progress = blinking blue & green; Error unstable = fast blinking red & yellow; Error high reflection = fast blinking red & blue; High reflection = blinking purple for 10 sec.

    Detection Area

    Mounted at 20 in (0.5m) installation height, the microwave beam covers a detection area extending to 26 ft (8m) with a typical width around 3m (9.9ft) at close range. Under real-world conditions, the effective detection area for an actual vehicle may be smaller than the theoretical pattern. Reference test conditions: installation height 0.5m (1.6ft), device activation operation type, sensitivity level 4.

    Dimensions

    Exposed unit: 170mm (6.69") height x 80mm (3.16") width x 78mm (3.07") depth, with 84.5mm ±1.5mm (3.32" ±0.06") mounting pitch. Compatible with a single gang box and OPTEX Mini Posts.

    Sensor Installation Conditions by Gate Type

    • Barrier Gate: Mount with sensor angled 90°/45° relative to the vehicle path.
    • Slide Gate: Mount with sensor angled 90°/15° relative to the vehicle path.
    • Swing Gate: Mount with sensor angled 90°/45°/15° relative to the vehicle path.

    Contact

    Optex America — 800.966.7839, sales@optexamerica.com, www.optexamerica.com

    Specifications are subject to change without notice for improvement.