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Voltage indicators

Products: 53
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Charger Doctor - current and voltage meter USB

The device measures current and voltage from the USB slot of the computer or power supply / charger. It has a male plug type A and female socket to connect any device -...
Index: ZAS-04087
Index: ZAS-04087
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Regular price €2.53 Price €2.53

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 €2.21 Price €2.21

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 €1.29 Price €1.29

Analog voltmeter - panel 91C16 mini - 30V DC

Analog voltmeter capable of measuring voltage range up to 30 V. It has a square case in size 40 x 40 mm. The accuracy CLASS 1.5.
Index: PRO-10217
Index: PRO-10217
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Regular price €1.28 Price €1.28

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 €3.01 Price €3.01

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 €1.37 Price €1.37

Analog ammeter 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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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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Analog Voltmeter 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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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 €2.78 Price €2.78

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 €5.79 Price €5.79

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 €3.00 Price €3.00

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 €5.09 Price €5.09

Analog voltmeter 91C16 Mini - 250V

Analog voltmeter capable of measuring voltage up to 250 V. It has a square case in size 40 x 40 mm. Yhe accuracy CLASS 1.5.
Index: UPM-09925
Index: UPM-09925
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Regular price €1.37 Price €1.37

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 €1.21 Price €1.21

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 €17.44 Price €17.44

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 €8.12 Price €8.12

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 €2.78 Price €2.78

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 €3.23 Price €3.23

Analog ammeter - panel BP-65 - 10A

Analog ammeter capable of measuring current range to 10 A.  It has  a round case with a diameter of 82 mm. The accuracy CLASS 2.5.
Index: PRO-10213
Index: PRO-10213
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Regular price €2.91 Price €2.91

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 €10.44 Price €10.44

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 €1.05 Price €1.05

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 €10.21 Price €10.21

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 €5.09 Price €3.57
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Voltage indicator - sensors Ancient spell...

Voltmeter analog, that is, analog voltage meter, the longest present on the market a kind of pointer to a value of voltage. Previously, each voltage indicator, from the simple meter of the diffuser in the receiver and magnetofonach blade, after the high-class laboratory equipment was equipped in the so-called "system" measurement. The principle of operation of such element is quite simple: the current flow through the light, thin coil, connected with the Board, causes it to rotate relative to the permanent magnet. The rotation angle depends on the voltage, and this, in turn, a certain coil resistance is proportional to the value of the voltage at its terminals. So we see that the same measuring device, depending on the connected (or no) additional resistors, can be used as a ammeter and voltmeter.

Modern applications of analog devices

Today, despite the universal availability of digital devices and their low prices, still willing to apply the use of voltmeters and amperomierze wskazówkowe. As an example may serve the device, stylized old – lampowe audio amplifiers are the best proof of the enduring popularity of traditional indicators. Also a simple power supplies, including laboratory, are often not typical of the LED display, but the analog voltage indicator. Cheap electrical devices of everyday use, such as car charger, also use repeatedly with sensors wskazówkowych.

The voltage, that is, if you can "see through walls"?

Yes! Of course, if we mean the detection of hidden in wall wires or metal elements. For this purpose, voltage detectors, in a position a small distance, to detect an electrical wire in which a current flows or breaches of the magnetic field caused by metallic objects (e.g. rebar). For installers and DIY excellent use will also "długopisowy" voltage indicator, which makes it easy to determine the phase wire in the electricity network.