logo   High Voltage Power Line Warning Systems
Sigalarm Products List
Sigalarm High Voltage Power Line Warning Device - Models 110, 110 side boom, 110 excavator, 210, 410, & 510
Wireless High Voltage Power Line Warning Devices
Hirtzer High Voltage Power Line Insulated Links
Downloads and  Resources


Looking to purchase back an original early 1960s model Sigalarm as shown below:

Please contact us for more information 407 321-0722 or email

Send Us Your Comments
Distributors List

Become a Distributor

Watch our  promotional videos, click here
Sigalarm on Twitter
Examples of Sigalarm applications.

5224 W State Rd. 46 PMB 405
Sanford FL 32771
Phone: (407) 321-0722
Fax:(407) 321-0723  
We are in the business of saving lives
For over 50 years Sigalarm manufactures high voltage power line WARNING SYSTEMS (such as Proximity Alarms, Range Control Warning Devices and Devices that Limit Range as described by OSHA 29 CFR 1926 subpart CC) which save lives.

Welcome to Sigalarm

Our high voltage power line encroachment and warning systems including (proximity alarms, range control warning devices, and range limiting devices). We also are a Hirtzer Insulated Link Premier dealer with over 20 years of experience.

OSHA has published online at the new crane and derricks standard. This regulation recognizes that overhead high voltage power lines represent a potential hazard to both operators and ground personnel working near equipment with booms, mast, or any other types of extensions that have the capability of reaching these high voltage power lines. The effective date for this regulation will be around November 10th of 2010.

Virtually all fatal electrocutions are a direct result of equipment being unintentionally brought into contact with a high voltage power line. We believe that most of these accidents could have been avoided by additional operator training and the installation and proper use of our products. Our line of power line warning devices, range control warning, and range limiting devices will assist operators who may become distracted or unable to see the dangerous overhead high voltage power lines. Our products are to be used as a tool to increase operator awareness. Please read through our site to learn more about our complete line of products, including power line warning devices, range control warning devices, range limiting devices, insulated links, and line contact alarms which could potentially prevent at least 20% of the reported fatalities by informing workers that the machine chassis has become energized.

Our products will pay for themselves in less than 2 months compared to the expense of using a dedicated spotter which is now 1 of the 5 options required in the new crane and derricks regulation.

Thank you for visiting.

Allied Safety Systems, Inc. proudly manufactures our complete line of products in the USA.


OSHA related documentation: OHSA power line safety presentation and OSHA power line requirements document (pdf).

Featured Products

Sigalarm High Voltage Power Line Proximity Alarm

Sigalarm High Voltage Power Line Proximity Alarm
Product Main Features:
  • Solid State
  • On demand status monitor
  • Audible and visual alarms
  • Single hardwire sensor
  • Single relay output
  • AUTO SHUTDOWN and range control

Sigalarm Gen2 wireless range control warning device

Product Main Features:
  • I.MX 6 Processor
  • Real time monitoring, recording, and reporting
  • Audible and visual warnings
  • 1-12 wireless sensors
  • GPS positioning
  • Optional telematics
  • Optional Hydraulic shutdown


Hirtzer Insulator

Product00" height="90" colspan="3"> 高压输电线接近度警报

고전압 동력선 근접 경보

Высоковольтный сигнал тревоги близости линии электропередач