The Crane Sentry® Jr. model is manufactured and marketed by Laser-View Technologies for anti collision detection and zone control in 1 axis. Typical usages for the Crane Sentry® are to detect bridge-to-wall and bridge-to-bridge collisions. This is an entry level product. Crane Sentry® is designed and manufactured in the USA and utilizes laser distance sensors.
Crane Sentry® Junior

Competitive Advantages
- This is a MEASURING system, not a PROXIMITY device
- Competitive difference: You see what you are measuring- no guesswork!
- Manufactured in USA by Laser-View Technologies using long range laser distance sensors
- Modular, easily configurable; teachable color touchscreen display
- Economical approach to monitoring crane position, detecting potential collisions, and controlling zone activity.
- Monitor bays up to 1640 ft long
- Simple integration with your drive via our built in relay outputs
What does a Crane Sentry® Jr. do?
This is our entry level product, which shares some of the same unique features and usability characteristics of the Original Crane Sentry®.
- Crane to Crane – collision detection
- Increases workplace safety as an anti collision sensor for cranes
- Provide up 6 programmable relay outputs for functions like slow and stop
- Crane to Wall – collision detection
- Combine with crane to crane protection to detect end stops
- This unit accepts up to (2) laser distance sensors that can be configured to monitor several user selectable conditions with up to (6) programmable outputs
- 164 ft (50m) measuring range


Crane Sentry® Jr. package
Crane Sentry® Jr. model Laser Anti-Collision Monitor controller
- Connects to up to (2) laser distance sensors
- Simple and intuitive color touchscreen controls show set point and live readings
- Program set points with simple TEACH button or key in values
- (6) Mechanical relay alarm outputs with (3) settable distance alarms (collision monitoring) per laser
- 110 VAC/220 VAC single phase power required; control box self-powers the connected laser sensors
- Polycarbonate wall mount sealed enclosure with clear window
Laser distance sensor
- Measures .05-50 m (164 ft) on natural surfaces
- 3 Hz. max measurement rate
- +/-3 mm accuracy
- Class II laser for safe use
- 24 VDC powered from crane sentry® controller
- IP65 environmental rating
- Our most compact, yet rugged package with a single M12 Euro style industrial connector
- -10 to +50°C operating temperature
- Includes lase cabling and mounting bracket

Core features | Core benefits |
---|---|
Complete modular system supports up to 2 lasers | Quick aim & set installation, versatile application |
Simple color touchscreen data entry & display | Intuitive operation, simple troubleshooting |
Rugged industrial package | Low maintenance |
IP 65/66 polycarbonate windowed enclosure | Indoor/outdoor operation |
Non-contact class 2 laser distance sensor | Accurate, long range, eye safe, competitive cost |
Available operating modes:
CRANE SENTRY® SYSTEM | CRANE SENTRY JR. | CRANE SENTRY® | CRANE SENTRY® ZONE MANAGER |
---|---|---|---|
Typical Specifications | |||
Max number of lasers | 2 | 2 | 2 |
Detection | Crane to wall, crane to crane | Crane to wall, crane to crane, Skew, Zone control in 1 axis |
Zone management in 2 axis |
Best Accuracy | < 1 inch | 0.125 inch | 0.125 inch |
Max distance | 164 ft (50m) | 1640 ft (500m) | 1640 ft (500m) |
Operating temperature | -10…+50°C | -10…+50°C | -10…+50°C |
Degree of protection | IP65 | IP65 | IP65 |
Power supply | 110 VAC | 110 VAC | 110 VAC |
INTERFACES | |||
---|---|---|---|
Connection | M12 for lasers | M12 for lasers | M12 for lasers |
Number of Relay contacts | 8, 6 are programmable by user | 8, 6 are programmable by user | 8 preset |
Relay contact type | 8A, NO/NC | 8A, NO/NC | 8A, NO/NC |
User Interface | Color touchscreen | Color touchscreen | Color touchscreen |