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Voltage indicators

Products: 53
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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 PLN7.72 Price PLN7.72

Meter tester UNI-T UT15C

Multifunctional and durable voltage tester  12-690 V AC/DC. It has  in particular : automatic range selection, conductivity test, LCD display and backlight.
Index: UPM-01271
Index: UPM-01271
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Regular price PLN96.75 Price PLN96.75

Analog ammeter - panel 91C16 mini - 1A

Analog ammeter capable of measuring current in the range up to 1 A. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10205
Index: PRO-10205
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Regular price PLN4.51 Price PLN4.51

Analog ammeter 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 PLN10.53 Price PLN10.53

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 PLN4.80 Price PLN4.80

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 PLN9.72 Price PLN9.72

Voltage Detector UT12A 90-1000V

Contactless detector of AC voltage in a range from 90 V to 1000 V.
Index: UPM-04263
Index: UPM-04263
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Regular price PLN24.31 Price PLN24.31

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 PLN17.80 Price PLN17.80

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 PLN4.23 Price PLN4.23

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 PLN28.37 Price PLN28.37

Voltage Detector Fazer 777 230V

Single-pole indicator for non-contact detection of AC voltage in installations from 220 V to 380 V.
Index: GTK-14790
Index: GTK-14790
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Regular price PLN28.37 Price PLN28.37

Metal, wire and wood detector - DPM KC098YB

Detector detects metal, wire and wood. It has a display targetting the object. It is also supplied with an audio alarm device.
Index: UPM-05402
Index: UPM-05402
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Regular price PLN60.98 Price PLN60.98

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 PLN9.72 Price PLN9.72

Analog ammeter - panel 91C16 mini - 30A

Analog ammeter capable of measuring current in range up to 30 A. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10211
Index: PRO-10211
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Regular price PLN3.66 Price PLN3.66

INA219 FeatherWing - voltage meter - Adafruit 3650

The board is based on the INA219B chip, is used to measure high voltage and DC through the I2C bus with the accuarcy up to 1%. It works with any available Feather board.
Index: ADA-10320
Index: ADA-10320
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Regular price PLN36.50 Price PLN36.50

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 PLN27.24 Price PLN27.24

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 PLN74.80 Price PLN74.80

Digital voltmeter - LED 32x32mm - 500VAC - red

Digital voltmeter capable of measuring voltages ranging from 60 V to 500 V AC. It has a square case with LED display 32 x 32 mm.
Index: AKS-12076
Index: AKS-12076
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Regular price PLN17.80 Price PLN12.46
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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 PLN35.69 Price PLN35.69

Non-contact voltage tester Uni-T UT12D-EU

A device that allows you to safely detect voltage. These types of indicators are commonly used in work related to repair or maintenance of cables, sockets and other electrical...
Index: LEC-19081
Index: LEC-19081
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Regular price PLN19.43 Price PLN19.43

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 PLN30.49 Price PLN30.49

DFRobot qualMeter Basic - power supply/charger and USB cable tester

qualMeter is a simple DIY device that enables you to diagnose the quality of your USB charging cable and the charger itself. It allows you to check wires type: female microUSB...
Index: DFR-10166
Index: DFR-10166
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Regular price PLN174.80 Price PLN131.10
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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 PLN16.18 Price PLN16.18

Voltage indicator REBEL RB-15A

Voltage indicator for simple AC and DC voltage measurements. The LEDs on the device show in which range the measured voltage is contained. The meter is also equipped with...
Index: LEC-18381
Index: LEC-18381
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Regular price PLN15.37 Price PLN15.37

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.