HT Instruments HT20S kosketukseton jännitteentunnistin CAT IV 1000 V ääni- ja LED-ilmaisimella 1010260

With a CAT IV 1000 V safety rating, the HT Instruments HT20S non-contact voltage tester detects AC voltage from 12 V to 1000 V without touching live conductors. It signals presence of voltage through both an acoustic buzzer and a bright LED, making it suitable for quick checks in sockets, cables, and junction boxes.

Overview

The HT20S is a compact, pen-style voltage tester powered by two AAA batteries. It is designed for electricians and maintenance personnel who need to verify the absence or presence of voltage before working on electrical installations. The integrated LED flashlight helps illuminate dark work areas, and the auto power off function preserves battery life when the tester is not in use.

What stands out

• Non-contact AC voltage detection from 12 V to 1000 V
• CAT IV 1000 V safety rating for use on the supply side of installations
• Dual indication: acoustic buzzer and visual LED
• Built-in LED flashlight for working in dark spaces
• Auto power off to extend battery life

Technical details

• Measurement type: Non-contact AC voltage
• AC voltage range: 12 V to 1000 V AC
• Frequency range: 50/60 Hz
• Indication method: Acoustic (buzzer), visual (LED)
• Power supply: 2x 1.5V AAA batteries
• Operating temperature: 0°C to 40°C
• Storage temperature: -10°C to 50°C
• Operating humidity: <80% RH (non-condensing)
• Pollution degree: 2
• Maximum operating altitude: 2000 m
• Housing material: Durable plastic

Our verdict

The HT20S is a reliable and easy-to-use voltage tester for everyday electrical work, offering high safety category and clear indication in a compact form factor.