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Continuity Tester with Audible Indication

Continuity Testers

TEK402

Probe Voltage: 9V

Test Current: 5mA

Resolution Range: 0 - 170kΩ

audible

Output: 85dB minimum at 30cm,

zero resistance

Audible Frequency: 2.8kHz ±

0.1kHz

Supply: 9V, MN1604/PP3 alkaline

battery (excluded)

Dimensions: 150 x 64 x 30mm

Weight: 185g approx (incl leads,

excl battery)

Includes: unfused leads (TL49)

with croc clips

This is a low cost, easy to use continuity tester with

audible indication. The loud buzzer makes it easy to

use in noisy environments.

Its simplicity and tough construction gives fast and

simple continuity testing at a low cost.

Suitable for a wide variety of low voltage signalling,

process control and educational applications.

Continuity Tester with Audible & Visual Indication

TEK404

Probe Voltage: 9V

Test Current: 5mA

Resolution Range: 0 - 170kΩ

audible, 0 - 8kΩ visual

Output: 85dB minimum at 30cm,

zero resistance

Red LED illuminates: below 8kΩ

Audible Frequency: 2.8kHz ±

0.1kHz

Internal fused safety cutout

protects to 250V AC/DC

Supply: 9V, MN1604/PP3 alkaline

battery (excluded)

Dimensions: 150 x 64 x 30mm

Weight: 185g approx (incl leads,

excl battery)

Includes: unfused leads (TL49)

with croc clips

This is a low cost, easy to use continuity tester. It has

audible and visual indication plus overvoltage

protection. It has the same loud buzzer as the TEK402,

giving a very clear signal of continuity.

With all the benefits of the TEK402 above, this unit

adds visual indication by an LED and, as a safety

measure in case the unit is accidently used on live

circuits, fused safety protection.

MARTEK402 continuity tester with audible indication £26.75

MARTEK404 continuity tester + audible + visual indication £29.80

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