Audio Visual Alert System for Cranes
BlokAlert is a wireless audio and visual warning system designed for rapid and easy installation on a crane's hook block. When activated by the lifting crew, the BlokAlert receiver emits a distinctive audible and visual signal that can be clearly seen and heard by personnel working near the hook block or suspended load.
This early warning alerts workers to the position and movement of the hook block, improving situational awareness and helping to reduce the risk of personnel, equipment, or other assets being struck by the crane's hook block, lifting accessories, or load.
Traditional crane warning systems typically rely on a horn mounted near the operator's cab. Due to the varying distance between the horn and the load, these systems often fail to provide an effective warning to personnel working in the vicinity of the hook block. A similar limitation exists with air horns or whistles used by riggers. In both cases, workers are inclined to look towards the source of the sound rather than the hazard itself.
BlokAlert addresses this issue by positioning the warning system directly on the hook block. Because the warning signal originates from the hazard location, the consistent proximity between the hook block and the load significantly improves the effectiveness of the alert. This ensures that attention is directed towards the hazard, enhancing safety and reducing the likelihood of accidents.
How BlokAlert works
- The handheld fob is activated by the riggers or lifting crew. When operated, the signal is transmitted to the receiver on the hook block of the crane and/or in the operator's cab. The transmitter is activated by a foot switch in the crane cab. When operated, the signal is transmitted to the receiver on the hook block of the crane.
- On the hook block, on receipt of a signal from a transmitter, the Receiver is activated, alerting the workforce to the proximity of the hook block.
Design Overview
- Uses high-powered neodymium magnets.
- Easy to install, remove, and charge.
- Two handheld transmitters per system.
- Easy to use, multifunction operation.
- 2 x 78db – 107db electronic sounders.
- 180° LED beacon.
- Choice of four beacon colours: BLUE, ORANGE, RED or GREEN
- Pair transceivers with the push of a button.
- Built-in Lithium Ion battery with 124-hr battery life.
- Built-in, fold-away carry handles.
- Long-range transmitter and receiver.
- Purpose-built aluminium housing.
- Built-in lanyard anchors.
- A safety lanyard provides secondary security tethering.
- LED power indicator.
- 3.39-inch low-profile design.
- Durable all-weather design, manufactured to an IP67 rating.
- -10°C to 50°C operating temperature.
- Easy access fuse.
- High-quality industrial charge connector.
- Optional cab transmitter.
- CE and FCC approved.
What's included with BlokAlert
BlokAlert Receiver (BA-R2) Part #7370040
Along with the LED Beacon, the BlokAlert Receiver is capable of up to 528 different audible warnings. This audio-visual warning system, combined with great functionality, performance, and design, makes this a must for all lifting operations.
BlokAlert Fob - 4-Button (60009) Part #7360040
The BlokAlert Fob allows the riggers to operate multiple BlokAlert systems across your job site.
- Two four-button fobs per system
- Rugged design complete with neck lanyard
- Eight- and 16-button fobs available on request
BlokAlert Accessories
BlokAlert Transmitter (BA-T3) Part #7370042
Through the use of the Footswitch, the BlokAlert Transmitter gives the crane operator hand-free operation of the BlokAlert system.
BlokAlert Footswitch (FS1) Part #7360017
The Footswitch provides hands-free operation of the BlokAlert Transmitter and is easy to install.
