High Voltage Alarm for 500Kv, Wrist Mounted,Arm-Mounted, Helmet-Mounted 90 90A 90B

A Complete Family of Personal High Voltage Alarms

The VICTOR 90 Series includes three specialized models—90, 90A, and 90B—each designed to provide a reliable high voltage alarm for different wearing preferences and work environments. Whether you are a lineman, substation technician, railway engineer, or industrial electrician, working near energized equipment above 1kV demands constant situational awareness. These non-contact high voltage alarm devices automatically detect the presence of dangerous electric fields and warn you before you approach too close. Unlike voltage detectors that require contact, this high voltage alarm series uses omnidirectional non-contact induction technology, ensuring you receive alerts even when your back is turned to the live conductor.

Model 90: Lightweight Wrist-Mounted High Voltage Alarm

The VICTOR 90 is the most portable member of the high voltage alarm family. Worn on the wrist like a watch, it weighs only 35 grams and is powered by a single CR1632 battery. Despite its compact size, this high voltage alarm covers a voltage range from 1kV to 220kV, making it suitable for distribution and sub-transmission lines. Alarm distances range from 0.10m (for 1kV) to 3.50m (for 220kV), with an accuracy of ±10cm. The Model 90 provides both bright LED flash and audible beeper alerts, ensuring you never miss a high voltage alarm even in noisy environments. The adjustable non-slip buckle keeps the device securely on your wrist, and the IP54 protection rating means it withstands dust and splashing water. For utility workers who need a high voltage alarm that is always on their person without getting in the way, the Model 90 is the perfect choice.

Model 90A: Arm-Mounted High Voltage Alarm for Extended Range

The VICTOR 90A upgrades to a larger arm-worn form factor, weighing 51 grams and powered by two CR1632 batteries for extended operating life. This high voltage alarm expands the upper detection limit to 500kV, covering extra-high voltage transmission lines. Like the 90A? (should be 90A), it maintains non-contact auto-trigger detection with ±10cm accuracy. The armband design keeps the high voltage alarm visible and audible at all times without interfering with hand tools or gloves. A large alarm indicator on the front of the instrument makes the alert clearly distinguishable from across a substation yard. The Model 90A is particularly popular among railway electrification crews and switchyard operators who require a high voltage alarm that can be worn over heavy clothing or arc flash gear. The adjustable buckle prevents slipping, and the battery compartment is designed for easy replacement in the field.

Model 90B: Helmet-Mounted High Voltage Alarm for Overhead Workers

The VICTOR 90B is the ultimate high voltage alarm for linemen and tower workers. Designed to clip or strap onto a standard hard hat, this 60-gram high voltage alarm stays at head level—the ideal position to detect overhead energized lines. With the same 1kV–500kV range and ±10cm accuracy as the 90A, the 90B adds the critical advantage of helmet mounting. When you are looking up at a transmission tower, a wrist or arm high voltage alarm might point away from the hazard, but the helmet-mounted version always faces the same direction as your gaze. The audible beeper and front-facing LED provide unmistakable warnings. For bucket truck operators and climbers, this high voltage alarm model offers peace of mind because the alarm follows your head movement.

Shared Advanced Features Across the Series

• Non-contact omnidirectional induction: Detects electric fields from any angle without touching live parts.
• Auto-trigger operation: No buttons to press; the high voltage alarm activates automatically near energized conductors.
• Dual alarm indicators: Bright LEDs + loud beeper (audible in high-noise environments).
• IP54 protection: Resistant to dust and water splashes for outdoor use.
• Wide working temperature: -10°C to 60°C, suitable for extreme climates.
• Safe distance reference: Each high voltage alarm follows GB 26860-2011 and GB 26859-2011 safety standards (see Table 1 for voltage-specific alarm distances).

Voltage Level & Alarm Distance Table (Common to all models)

Voltage Level	Safe Distance	Alarm Distance
1kV	—	0.10m
6.6kV	—	0.70m
10kV	0.70m	1.00m
35kV	1.00m	1.60m
66kV	1.50m	2.20m
110kV	1.50m	2.50m
220kV	3.00m	3.50m
330kV	4.00m	4.50m
500kV	5.00m	5.50m

Applications

• Power industry: Substations, transmission lines, distribution poles.
• Railway industry: Overhead catenary systems, traction power stations.
• Industrial and mining: High-voltage switchgear, cranes, kilns.
• Construction near power lines: Crane operators, scaffold erectors.

Quality and Durability

All three models undergo strict quality control. The adjustable buckles are non-slip and resist accidental detachment. Battery compartments are tool-free and simple to operate. S/N tracking (e.g., S/N:100003873) ensures full traceability.