YASONG SLA-PT8020 Laser Vehicle Height Detection System, 10m/20m Range, Auto Calibration, 120dB Alarm, IPX5/IP65 Bike Alarm Siren This model supports built-in tone

This model supports built-in tone mode

Separate sound and light switch for individual control

This model uses a magnetic base installation for quick placement on suitable metal vehicle surfaces

U-shaped and folding base

Less than 0

YASONG SLA-PT8020 Laser Vehicle Height Detection System, 10m/20m Range, Auto Calibration, 120dB Alarm, IPX5/IP65 Bike Alarm Siren This model supports built-in toneThe YASONG SLA PT8020 vehicle height detection system creates an invisible laser safety line across a passage and continuously monitors approaching vehicles or obstacles. When a target enters the preset detection zone, the detector keeps the alarm output active until the target leaves, helping prevent overheight collisions at tunnels, bridges, and industrial entrances. Choose the 0. 510m or 0. 520m detector version. Automatic calibration sets the