Martindale ET4 Electrical Tester

Includes: ET4 Electrical Tester, TL17 test leads, 9V battery, case and instruction manual.

Reference MARET4

Brand Martindale Electric

The Martindale ET4 combines all essential electrical test functions in an easy to use compact test tool with an open jaw for both AC and DC current measurement. Other functions include voltage, resistance, continuity and diode test. The backlit dual display shows current and voltage, or frequency and voltage simultaneously.

The current fork is designed for use in tight spaces where conventional clamps won’t go. Either probe can be docked on the side of the unit, for ease of use during testing operations. The right tip of the jaw has a forward-facing LED light to illuminate the local working area.

FEATURES

Open fork AC/DC current measurement.
AC & DC current to 200A.
AC & DC voltage to 600V.
Resistance to 50 MΩ.
Frequency to 400 Hz (when measuring AC current).
Continuity with audible indication.
Diode testing.
Non-contact voltage indicator.
Simultaneous measurement.
Auto power off.
Display hold.
Display backlight.
Auto ranging.
Detachable test leads.
Built-in LED torch.

Comparison Chart

	ET4	ET5	CM57
AC Current	✔	✔	✔
DC Current	✔	✔
AC/DC Volts	✔	✔	✔
Ohms	✔	✔	✔
Frequency	✔	✔	✔
Capacitance		✔	✔
Non-contact Voltage Detector	✔	✔	✔
Auto ranging	✔	✔	✔
Max Conductor Size	15mm Ø	15mm Ø	25mm Ø 35*15mm
True RMS			✔
Min Max
Backlight	✔	✔	✔
Auto Power Off	✔	✔	✔
Other	Torch	Torch Temperature
Safety	CAT III 600V	CAT III 600V	CAT III 600V

Martindale ET4 Electrical Tester Specifications

Current	AC: 0.1A-200.0A, Accuracy: ±(2.0% of rdg + 10 dgt) DC: 0.1A-200.0A, Accuracy: ± (2.0% of rdg + 5 dgt).
Voltage	AC: 0.1mV-600V, Accuracy: ± (1.2% of rdg + 5 dgt) DC: 0.1mV-600V, Accuracy: ± (0.5% of rdg + 2 dgt).
Resistance	0.1 Ω-50MΩ, ± (1% of rdg + 5 dgt).
Frequency	30Hz-400Hz, ± (0.1% of rdg + 5 dgt).
Continuity Buzzer	at<30Ω.
Diode Test	1mV-2V.
NCV indicator	70V- 600V.
Supply	9V PP3 Alkaline.
Battery life	50 hours typical with carbon zinc 100 hours typical with alkaline.
Fork maximum conductor size	15mm diameter.
Operating environment	0°C to 40°C, <70% RH.
Storage temperature	-20°C to 60°C, 0 to 80 RH.
Overvoltage category	CAT III 600V.
Pollution degree	2.
Standard	BS EN 61010-1, BS EN 61010-2-32.
Weight	200g (incl battery).
Dimensions	202 x 51 x 44 mm.
Martindale ET4 warranty	Two-years.