Voltage Indicator - in many devices we encounter the need to indicate the level of voltage or current. Regardless of whether we are working on our own construction of the laboratory power supply or a simple charger to charge a car battery, properly selected instrument to measure key parameters provides reliable measurement with the appropriate accuracy for the application. Botland store offer lets you find both simple, analog electrical meters and ready-made devices helpful in everyday work of electronics and electricians.
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24V Step-Up/Step-Down Voltage Regulator S18V20F24 - Pololu 2582
Index: PLL-14070
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Voltage indicators
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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
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
USB sockets tester UNI-T UT658 Dual
The UNI-T UT658 Dual USB socket tester allows you to test USB chargers , portable power supplies, USB type A and C cables and other charging devices. UT658 allows you to...
Index: LEC-17180
Index: LEC-17180
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 two female sockets for connecting to any...
Index: ZAS-04112
Index: ZAS-04112
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
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
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
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
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
Analog voltmeter - panel DH-50 - 15V DC
Analog voltmeter capable of measuring voltage range up to 15 V. It has a square case in size 51 x 51 mm). Its accuracy CLASS is 2.5.
Index: PRO-10215
Index: PRO-10215
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
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
AC/DC voltage tester 12V - 250V
AC / DC voltage tester in the form of a screwdriver, which measures in the range from 12 V to 230 V. The measured value is displayed on the LCD display.
Index: UPM-03518
Index: UPM-03518
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
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
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
INA219 FeatherWing - voltage meter - Adafruit 3650
The board is based on the INA219A or INA219B chip (no choice), is used to measure high voltage and DC through the I2C bus with the accuarcy up to 1%. It works with any...
Index: ADA-10320
Index: ADA-10320
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
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
Voltage indicator Orangjo VC701
Orangjo's easy-to-use, compact voltage gauge. Measures AC/DC voltage in the range from 6 V to 380 V. The measurement result is presented by means of LED diodes built into...
Index: DPM-22525
Index: DPM-22525
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
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
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
Analog voltmeter - panel DH-50 - 40V DC
Analogue voltmeter capable of measuring voltages up to 40 V . It has a square housing with dimensions of 50 x 50 mm. Its accuracy is CLASS 2.5.
Index: UPM-09923
Index: UPM-09923
See also
- Universal meters
- Weather and air quality meters
- Resistance meters
- Energy meters
- Other meters
- Oscilloscopes
- Function generators
- Measuring probes
- Measures and calipers
- Weight meters
- Light meters
- Clamp meters
- Cable detectors
- Temperature gauges
- Cable testers
- Socket testers
- Tachometers
- Laser rangefinders
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.