Martindale TEK200 Voltage and Magnetic Indicator


£43.68 / £52.42 incl VAT

⚡ Detects voltage 100 – 600V AC

⚡ Detects magnetic field >10mT

⚡ Detects polarity of magnetic field

⚡ Integrated self-test function

⚡ Visual & audible indication

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The TEK200 can detect the presence of voltage and magnetic fields produced by indicators, relays, solenoids, and transformers.

The integral self-test activates the sensor in the tip of the tester at 50Hz as well as checking the battery and LED and sounds the buzzer intermittently to indicate correct operation. This proves that the unit is fully functional and avoids the need for a separate proving unit.

The instrument is then ready to detect voltages from 100V to 600VAC or magnetic fields on solenoids or relays.

This versatile instrument is housed in a slim and ergonomic ABS housing.





Voltage Range

100 to 600V AC.

Frequency Range

50Hz to 50kHz.


3mm for 100V, 50Hz.

23mm for 240V, 50Hz.
Distances are from the tip of the unit to a flat PVC twin core and earth cable suspended in free space.


Visual: Red LED.

Audible: 2kHz Tone.

General Specifications

Integrated self test proving unit.

Operating Temperature: 0°C to 50°C.

Overvoltage: CAT III 1000V, CAT IV 600V.

Supply: 9V battery alkaline battery, MN1604 / PP3 or equivalent.

Housing: Flame retardant ABS.

Dimensions: 202 x 32 x 22mm.

Weight: 140g approx (excl battery).