Hasegawa HST-70 High Voltage Detector (20kV-80kV)

Overview

The Hasegawa HST-70 is a premier telescopic special-high-voltage detector engineered for the safety of electrical workers handling overhead transmission lines and substation equipment. Manufactured in Japan, it is specifically calibrated for a working voltage range of AC 20 kV to 80.5 kV, making it an essential tool for high-voltage diagnostics.

The standout feature of the HST-70 is its telescopic FRP (fibre-reinforced plastic) rod — lightweight yet extremely durable — which lets technicians maintain a safe working distance while testing and retracts to a compact size for portability. Upon detecting live voltage, the device emits a distinct intermittent buzzer and flashes a bright red LED for unmistakable feedback even in noisy or bright daylight conditions.

Key Features

• Tuned for special high voltage: AC 20 kV to 80.5 kV
• Telescopic FRP rod for safe working distance and compact portability
• High insulation and dielectric strength for user safety
• Intermittent buzzer and bright red LED indication
• Built-in battery/circuit check button before use
• Designed for all-weather reliability (check manual for rain restrictions)

Applications

• Voltage confirmation on overhead transmission lines
• Substation and special-high-voltage equipment safety checks
• Lockout/tagout verification before maintenance
• Use by utility engineers and linemen on HV/EHV systems

What’s in the Box

• HST-70 Special High Voltage Detector (telescopic)
• LR44 (1.5 V) batteries × 2
• Instruction manual and standard accessories

Why buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is a trusted supplier of Hasegawa voltage detectors and electrical safety equipment in the UAE. We offer genuine products, competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. Download the datasheet