Compass Personal Voltage & Current Detector – SFG-Compass

Compass Personal Voltage & Current Detector – SFG-Compass

Compass™ is a smart, innovative, life-saving device that detects energized sources and warns users long before they are in danger of being electrocuted. It alerts users of their proximity to a threat and then informs them of the direction of the source. Its intelligent design allows it to be configured to best provide protection within the environment of almost any work situation. It is the first of its kind.

Compass™ is engineered to attach easily to the underside brim of any standard hard hat. Positioned within the user’s peripherals, it provides ease of use and functionality. This strategic placement allows it to provide a 360° detection area around the user. Once a threat is detected, Compass™ immediately provides the user with both audible and visual notifications.

LineStar is the EXCLUSIVE dealer for the compass in Canada.

Part # SFG-Compass


  • Light weight, easy-to-use design
  • A 6th sense for employees around electricity
  • Proximity and directional alerts
  • Adjustable sensitivity settings
  • Rechargeable battery
  • Durable and water-resistant
  • Built-in self-test feature
  • will provide warning distances exceeding 20ft for voltages higher than 35kV.

    Initializes in highest-sensitivity mode. Issues alert based on positive changes in the electric and magnetic field indicating an approaching energized surface. Briefly issues full notifications then adjusts to the current environment to eliminate further redundant nuisance alerts. Regains sensitivity as a ​threat gets farther away from the user.


    The hourly self-test verifies that the sensors are operating correctly and accurately. Tests are done in the background to prevent any nuisance to the user. A heads-up-display will provide notification if the product is defective or is not working correctly.


    The Compass™ comes with a built-in rechargeable lithium-ion battery, and uses a common 5V USB 2.0 Micro B charge point access. Compass™ has a 3-day battery life (non-frequent alerts), 12 hour battery life in rigorous activity (frequent alerts), charges in 1.5 hours, and has an easy-to-check battery life monitor.

    Compass™ comes equipped with power-saving features such as automatically turning off when inactive (no motion) for 5 minutes. When threats are not detected, power functions are reduced to save battery.


    Compass™ is ergonomic and efficient. It’s small, low-profile housing clips underneath the hard hat brim out of direct line-of-sight of the user. The unit weighs 2 ounces and is 90 x 30 x 10 [mm] in dimension.


    Operating Temperature: -29° C to 60° C (-20° F to 140° F)
    Water Resistant: IEC IP6X (safe when exposed to heavy rain)
    Physical Shock Certification
    Military-grade components

    Voltage Detection


    Sensitivity (Lights)

    Field Experience Typical Warning Distance for a Single-Phase Conductor

    (1st Alert)

    2.4 kV (L-N, RMS) 4.6 kV 7.2 kV 12.7 kV 34.5 kV
    HIGH (7) None 12 Feet >12 Feet >12 Feet >12 Feet >12 Feet
    MED (5) Limited 8 Feet >10 Feet >12 Feet >12 Feet >12 Feet
    LOW (3) Extensive 4 Feet >6 Feet >8 Feet >12 Feet >12 Feet
    AUTO* (Oscillating) Extensive 8 Feet* >10 Feet* >12 Feet* >12 Feet* >12 Feet*
    *First alert distances are prior to an adjustment. Auto sensitivity allows users to silence redundant alerts by adjusting COMPASS to the surrounding environment by pressing the center button. Alerts will be re-enabled if the user gets closer to the source.
    Current Detection
    Current Sensitivity (Lights) Current Amperes RMS Typical Warning Distances for a Single-Phase Conductor
    First Alert Max Alert
    • Directional Alerts are not provided with Current Detection.
    • The Current Detection distance will be reduced when around three-phase conductors.
    HIGH (7) 100A 100 Feet 40 Feet
    MED (5) 100A 30 Feet 15 Feet
    LOW (3) 100A 15 Feet 8 Feet
    Compass Specifications
    Size 3.5” x 1.2” x .04” (88.9 mm x 30.48 mm x 10.16 mm)
    Weight 2 oz (56 g)
    Operating Temperature -29° C to 60° C (-20° F to 140° F)
    Water Resistance IEC IP6X (Safe when exposed to heavy rain)
    Power System Rechargeable Lithium-ion battery: 5 day life in rigorous activity (frequent alerts), 10 days for non-rigorous activity.
    Charge Time: 1.5 hours
    Directional Accuracy Detects the direction to a source with a minimum accuracy of +/- 10° heading from 8 feet. Accurate 360° around the user.
    Adjustable Sensitivity Levels Low, Medium, High, Adaptive
    Default Sensitivity Level High
    Operating Frequency 60 Hz
    Operating Voltages: 2400 VAC (Minimum) to 35.4 kVAC RMS Line-to-Neutral
    Case Material

    Flame Retardant Carbotex K-30FR Polycarbonate

    ElectricVolume Resistivity: 1.0E+16 ohms⦁cm, Dielectric Strength: 510 V/mil

    Dielectric Constant: (1 MHz): 2.9, Arc Resistance:110 sec.

    Flame Rating (0.12 in): V-0 tested to UL 94

    Deflection Temperature: 270 °F

    Ports Common 5V USB 2.0 Micro B charge point access
    Warranty and Service 1-Year Limited Warranty and Service included.
    Regional Support Certain services may not be available outside the U.S.
    Included in the Shipment Compass: Personal Voltage and Current Detector, Quick Start Guide, USB Charging Cable, Safeguard Equipment Storage Case.
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