Electromagnetic Field Meter Habotest HT627 — frequency range 50 Hz–20 kHz, handheld EMF tester

The Habotest HT627 electromagnetic field meter is a handheld instrument designed to measure low-frequency electric and magnetic fields between 50 Hz and 20 kHz. It provides real-time readings of both electric and magnetic field strengths, displays results on a backlit LCD, and includes audible alerts to indicate when preset limit levels are exceeded. The unit is compact and battery-powered using three AAA cells included with the device, making it suitable for portable inspections, workplace checks and troubleshooting near electronic equipment.

Advantages

The HT627 offers accurate measurements for both electric (up to 2,000 V/m) and magnetic (up to 200 µT) fields, enabling a comprehensive assessment of low-frequency electromagnetic exposure. A large backlit LCD and color‑changing backlight make readings easy to interpret in varying lighting conditions, while an audible alarm notifies the user immediately when field levels surpass threshold values. Additional features such as measurement memory and automatic shutdown improve convenience and battery life.

Suitable for

• Occupational safety checks and exposure verification in workplaces
• Home inspections near power lines, appliances and consumer electronics
• Troubleshooting and locating sources of elevated electromagnetic fields
• Field surveys for installers and maintenance personnel

When it may not be suitable

The HT627 is intended for low-frequency measurements from 50 Hz to 20 kHz and is not suitable for radio‑frequency or high-frequency electromagnetic field assessments. It is designed for spot checks and short surveys rather than continuous long-term monitoring without periodic battery replacement. For specialised laboratory measurements requiring traceable calibration certificates or frequencies outside the specified range, a different instrument may be required.

Key specifications

• Frequency range: 50 Hz to 20 kHz
• Electric field range: up to 2,000 V/m
• Magnetic field range: up to 200 µT
• Display: large LCD with backlight and color indication
• Alarm: audible alert when limits exceeded
• Power supply: 3 × AAA batteries (included)
• Housing material: ABS plastic
• Dimensions: 142 × 58 × 28 mm
• Weight: approx. 125 g (with batteries)
• Safety standard: complies with EN61326-1

How to use

Insert the three AAA batteries provided and switch the device on. Select the measurement mode for electric or magnetic field as required, then hold the meter at the inspection location and read the value on the backlit LCD. Use the audible alarm and color backlight to quickly identify elevated field levels. Store measurement points in the device memory if you need to compare readings taken at different locations or times. After use, turn the meter off to conserve battery; the unit also features automatic shutdown to extend battery life.

What to consider before purchase

• Measurement frequency range required: 50 Hz–20 kHz; not suitable for RF/high-frequency testing
• Required measurement ranges for electric and magnetic fields (up to 2,000 V/m and 200 µT)
• Portability and battery operation versus need for mains power or continuous logging
• Need for formal calibration or traceable certification for regulatory testing
• Environmental conditions and expected sources of electromagnetic fields at the inspection sites

Usage recommendations

For consistent results, perform measurements at a fixed height and distance from devices under test, allow the display to stabilise before recording values, and use the audible alarm and color backlight to prioritise locations that require further investigation. Replace batteries before extended surveys and consult calibration services if measurements are to be used for regulatory compliance or formal reporting.