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Index: MKY-13284
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Voltage indicators

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Battery charge level and sound level indicator - KA2284

The module is based on the KA2284 system. It is used to measure the input signal with the 5 LEDs, which are gradually included depending on the value of the measured voltage....
Index: MOD-07150
Index: MOD-07150
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Regular price €2.80 Price €2.80

USB tester Keweisi KWS-1802C current and voltage meter from USB C port - white

USB meter in white, designed for testing USB type C sockets . It is equipped with a small but clear LCD screen , which displays voltage, current, capacity, operating time,...
Index: DNG-17512
Index: DNG-17512
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Regular price €11.70 Price €11.70

Voltmeter KWS-AC300 with split-core current transfer - 50-30V/100A

The KWS-AC300 is a closed-core AC transformer that allows you to measure current parameters. A small LCD display shows data indicating voltage and current, temperature,...
Index: DNG-17859
Index: DNG-17859
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Regular price €19.96 Price €19.96

USB multimeter KWS-V21 Charger Detector

Small size USB meter designed for testing USB 2.0 sockets . Very easy to use. It is equipped with a clear LCD screen, which displays voltage, current, capacity and...
Index: DNG-17513
Index: DNG-17513
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Regular price €7.49 Price €7.49

Analog ammeter - panel 91C16 mini - 20A

Analog ammeter capable of measuring current in the range up to 20 A. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10210
Index: PRO-10210
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Regular price €1.78 Price €1.78

Analog ammeter - panel 91C16 mini - 30A

Analog ammeter capable of measuring current up to 30 A . It has a square housing with dimensions of 40 x 40 mm. Its accuracy is CLASS 1.5.
Index: PRO-10211
Index: PRO-10211
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Regular price €1.28 Price €1.28

Non-contact voltage tester Voltcraft MS-100

A small size tester manufactured by Voltcraft. It enables direct and indirect measurement of DC voltage up to 12 V and AC voltage up to 250 V . The values of the measured...
Index: CNR-19349
Index: CNR-19349
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Regular price €8.14 Price €8.14

Analog ammeter - 15A

Analog ammeter capable of measuring current in the range up to 15 A. It has a square case in size 47 x 47 mm.
Index: PRO-10202
Index: PRO-10202
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Regular price €2.59 Price €2.59

Analog ammeter - panel DH-80 - 100A

Analog ammeter capable of measuring current in the range up to 100 A. It has a square case in size 80 x 80 mm. The accuracy CLASS 1.5.
Index: PRO-10204
Index: PRO-10204
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Regular price €4.12 Price €4.12

DFRobot Gravity - I2C battery charge level meter

A module designed for reading the Li-Pol 3.7 V battery charge level in real-time. It is also equipped with alarm function when the battery level is low, or when battery power...
Index: DFR-12263
Index: DFR-12263
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Regular price €13.00 Price €13.00

LC709203F - LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA QT / Qwiic - Adafruit 4712

Battery level indicator from Adafruit. It allows to measure the voltage of Li-Pol and Li-Ion batteries. Displays the voltage value and percentage charge of the cell. The...
Index: ADA-18235
Index: ADA-18235
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Regular price €10.83 Price €10.83

Analog ammeter - 30A

Analog ammeter capable of measuring current in range up to 30 A. It has a square case in size 47 x 47 mm.
Index: PRO-10203
Index: PRO-10203
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Regular price €2.59 Price €2.59

Analog ammeter - panel 91C16 mini - 5A

Analog ammeter capable of measuring current range to 5 A. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10208
Index: PRO-10208
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Regular price €1.28 Price €1.28

Digital voltmeter - LED 32x32mm - 500VAC - green

Digital voltmeter capable of measuring voltages ranging from 20 V to 500 V AC. It has a square case with LED display 32 x 32 mm.
Index: AKS-12077
Index: AKS-12077
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Regular price €7.57 Price €6.82
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USB tester Keweisi KWS-1802C current and voltage meter from USB C port - black

A USB meter designed for testing USB type C sockets . It is equipped with a clear LCD screen, which displays voltage, current, capacity, operating time, internal temperature...
Index: DNG-17511
Index: DNG-17511
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Regular price €10.83 Price €10.83

Analog voltmeter - panel 91C16 mini - 250V DC

Analog voltmeter capable of measuring voltage up to 250 V. It has a square case in size 40 x 40 mm. Yhe accuracy CLASS 5.0.
Index: UPM-09925
Index: UPM-09925
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Regular price €2.04 Price €2.04

Analog voltmeter - panel BP-65 - 40V DC

Analog voltmeter capable of measuring DC voltage in the range up to 40 V. It has a round case with a diameter of 82 mm. The accuracy CLASS is 2.5.
Index: UPM-09926
Index: UPM-09926
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Regular price €3.88 Price €3.88

Analog ammeter - panel DH-50 - 5A

Analog ammeter capable of measuring current in range to 5 A. It has a square case in size 50 x 50 mm. The accuracy CLASS 2.5.
Index: PRO-10201
Index: PRO-10201
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Regular price €3.67 Price €3.67

Analog ammeter - panel BP-65 - 30A

Analog ammeter capable of measuring current up to 30 A . It has a round housing with 82 mm diameter. Its accuracy is CLASS 2,5.
Index: PRO-10214
Index: PRO-10214
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Regular price €3.88 Price €3.88

Voltage indicator Rebel RB-15B

Indicator allowing for quick determination of the voltage we are currently working with. The measurement is presented using LEDs on the front of the device. Each diode...
Index: LEC-18382
Index: LEC-18382
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Regular price €4.32 Price €4.32

Measuring adapter Voltcraft PM-45

The adapter allows to measure voltage and current of the device connected to the USB port . For proper operation it requires the use of a universal digital or analogue meter...
Index: CNR-19345
Index: CNR-19345
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Regular price €47.52 Price €42.77
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Analog ammeter - panel DH-50 - 10A

Analog ammeter capable of measuring current in range up to 10 A. It has a square case in size 50 x 50 mm. The accuracy CLASS 2.5.
Index: UPM-09921
Index: UPM-09921
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Regular price €3.67 Price €3.67

Analog ammeter - panel DH-50 - 30A

Analog ammeter capable of measuring current in range up to 30 A. It has a square case in size 50 x 50 mm. The accuracy CLASS 2.5.
Index: UPM-09922
Index: UPM-09922
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Regular price €3.67 Price €3.67

Analog ammeter - panel 91C16 mini - 10A

Analog ammeter capable of measuring current in the range up to 10 A. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10209
Index: PRO-10209
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Regular price €1.82 Price €1.82

Voltmeters - the charm of old devices

Analog voltmeter, or indicator voltage meter, is the longest type of voltage indicator on the market. In the past, each voltage indicator, from a simple amp meter in amplifiers and cassette recorders, to the high class laboratory equipment, was equipped with the so-called measuring "circuit". The principle of operation of such an element is very simple: the flow of current through a light, delicate coil connected to the pointer, causes it to rotate in relation to a permanent magnet. The angle of deflection depends on the current intensity, which in turn - with a specified coil resistance - is proportional to the voltage at its terminals. Thus, it can be seen that the same measuring instrument, depending on the additional resistors connected (or not), can serve as both an ammeter and a voltmeter.

Modern applications of analog indicators

Today, despite the widespread availability of digital devices and their low price, pointer voltmeters and ammeters are still readily used. As an example, let's take old-style devices - audio tube amplifiers are the best proof of the continued popularity of traditional indicators. Also simple power supplies, including laboratory power supplies, are often equipped not with a typical LED display, but just an analog voltage indicator. Inexpensive everyday electrical devices, such as car chargers, also often use indicator meters.

Voltage indicators, or can you "see through walls"?

Yes, of course, if we mean the detection of hidden wires or metal parts in walls. For this purpose, voltage detectors are used, which are able to detect, from a short distance, electric cables through which current flows or magnetic field disturbances caused by metal objects (e.g. rebar). For installers and do-it-yourselfers, a "pen" voltage indicator will also be a great help, which will easily identify the phase wire in an electrical installation.