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Crosby BlokCam BlokAlert

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Original price $4,348.00
Current price $4,200.00
SKU 7370003
MPN 7370003

This product is eligible for FREE Shipping

Typically ships in 2-3 working days

Crosby BlokAlert is a wireless, audio-visual warning system that can be quickly and easily deployed to the hook block of a crane.

Once activated by the lifting crew, the BlokAlert receiver emits a recognisable audio-visual signal that can be seen and heard by site personnel in proximity to the hook block or load.

This alerts the workforce to the position and movements of the hook block, it increases awareness and reduces the risk of being struck by the crane’s hook block, lifting accessories or load.

In many work sites the distance between the horn, often located near the operator’s cab, and the load, is inconsistent and does not efficiently warn site personnel to the position of the hook block or load. The same can be said for airhorns or whistles when used by riggers. In both scenarios, the attention of the work force is diverted to where the sound is coming from, as opposed to the hazard.

System comprises:

  • 1 x BlokAlert receiver
  • 1 x Hard shell transport case
  • 2 x Operator telemetry remotes

This product is eligible for FREE Shipping

Typically ships in 2-3 working days
Specification Video Downloads Features Configuration
Crosby BlokCam BlokAlert


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 make this a must for all lifting operations.

SIZE AND WEIGHT (excluding Antenna)

HEIGHT: 173mm (6.82in)

WIDTH: 210mm (8.27in)

DEPTH: 86mm (3.39in)

WEIGHT: 3,400g (7.5lbs)

Crosby BlokCam BlokAlert


The BlokAlert Fob allows the riggers to operate multiple BlokAlert systems across your site.

  • Two x 4 Button Fobs per system
  • Rugged Design complete with neck lanyard
  • 8 and 16 button Fobs available on request
  • Uses high powered neodymium magnets
  • Easy to install, remove and charge
  • Two hand-held transmitters per system
  • Easy to use, multifunction operation
  • 2 x 78db – 107db Electronic Sounders
  • 180° LED Beacon
  • Choice of 4 Beacon Colours
  • Pair transceivers with the push of a button
  • Built in Lithium Ion battery with 124-hour battery life (1)
  • Built in, fold away carry handles
  • Long range transmitter and receiver (2)
  • Purpose built aluminium housing
  • Built in lanyard anchors
  • Safety lanyard provides secondary security tethering
  • LED power indicator
  • 86mm low profile design
  • Durable all-weather design, manufactured to IP67 (3) rating
  • -10°C to 50°C (14°F to 122°F) operating temperature
  • Easy Access Fuse
  • High quality industrial charge connector
  • Optional cab transmitter
  • CE and FCC Approved

1. Battery life varies by use and configuration.
2. Transmission distance may vary depending on environment.
3. IP67 rating excludes IP65 audio sensor.


The Lifting Crew/Rigger
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.

In the Operator’s Cab
The transmitter is activated by a footswitch 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.