Voltage indicators
Voltage indicator - On many devices, we meet the required level of voltage or current. Regardless of whether we are working on its own design laboratory power supply, or on a simple charger to charge a car battery, the correct device for the measurement of key parameters provides a reliable measure with sufficient application accuracy. The store Botland, you will find a simple, analog gauges, and finished devicesthat are useful in everyday work electrical and electronics.
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,...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,...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.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...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.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.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.Voltage Detector UT12A 90-1000V
Contactless detector of AC voltage in a range from 90 V to 1000 V.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.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.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.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...Car battery tester Rebel RB-15C
The tester enables verification of the 12 V car battery voltage and alternator charging voltage. The device informs about the test result using diodes on the front of the...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.DFRobot qualMeter X - 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 wire type: female, microUSB...- Reduced price
- On sale
DFRobot qualMeter miniLoad - charger and USB charger cable tester - for qualMeter Basic
qualMeter is a simple DIY device that enables you to diagnose the quality of your USB charging cable and the charger itself. qualMeter miniLoad is an extension for qualmeter...- Reduced price
- On sale
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.Car Fuse Set Midi 3-30A - 10pcs + tester
Set of 10 car fuses in the MIDI size, with the value ranging from 3 A to 30 A plus voltage tester from 6 Volts to 24 Volts.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.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.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.Voltage Detector Fazer 777 230V
Single-pole indicator for non-contact detection of AC voltage in installations from 220 V to 380 V.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.