Current & Voltage Sensors

SKU: DF-SEN0288 | Brand: DFRobot

A non-contact AC current sensor with a clamp-on transformer probe, capable of measuring 0–10 A AC. Simply clamp the probe around an AC line and connect the 3.5 mm plug to the signal conversion module — no wire cutting...

SKU: DF-SEN0287 | Brand: DFRobot

When you want to measure the AC current, are you still having trouble cutting the wires, wiring or soldering. Gravity: Analog AC Current Sensor comes to the rescue, eliminating the need to cut wires or reconnect circu...

SKU: AF-3626 | Brand: Adafruit

What do you do when you need a variety of measurements on your current project? (pun intended!) You could buy a slew of test equipment tools OR you could use this very nice panel-mount multi-function power meter!...

SKU: AF-3624 | Brand: Adafruit

This Mini Power Meter with Voltage, Current, Watts, mAh & mWh Display (whew that is a mouth-full) is a lot like the USB In-Line Voltage and Current Meter we carry but can  be used with a wide range of voltages...

SKU: AF-3650 | Brand: Adafruit

The Adafruit INA219 FeatherWing is a high-side current and voltage sensor that stacks onto any Feather development board. Using the INA219B chip over I2C, it measures both DC current draw and bus voltage with 1% preci...

SKU: AF-3989 | Brand: Adafruit

Analog panel meters are arguably not as blingy or flashy as LEDs, but their simplicity adds a touch of elegance and makes them easier to read quickly.This Large 3V Panel Meter is about handheld-size, with one scr...

SKU: SF-BOB-12052 | Brand: SparkFun

Odometers are extremely useful for cars, they tell you how far you have gone, wouldn’t it be nice if you were able to have a device that does the same for electrical current? The LTC4150 SparkFun Coulomb Counter Break...

SKU: SF-SEN-12040 | Brand: SparkFun

The INA169 is a “high-side current monitor,” which means that you place a resistor (a “shunt resistor”) on the positive power rail and the INA169 measures the voltage drop across that resistor. The INA169 outputs a sm...

SKU: AF-460 | Brand: Adafruit

Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 2-wire versi...

SKU: AF-5832 | Brand: Adafruit

This breakout brings the INA228 power monitoring chip out to an easy-to-use board for measuring DC current, bus voltage and calculated power on either the high side or the low side of a circuit. It combines a wide com...

SKU: SF-TOL-20680 | Brand: SparkFun

Keep an eye on your single-cell LiPo battery before your project suddenly runs out of power. This compact fuel gauge board sits in circuit with your battery and reports the relative state of charge using the MAX17043 ...

SKU: PL-2453 | Brand: Pololu

A compact carrier board for the Allegro ACS711EX Hall effect-based linear current sensor with overcurrent fault output. It measures bidirectional current up to ±31 A with a proportional analogue voltage output centred...

SKU: AF-575 | Brand: Adafruit

Put a voltage meter anywhere with this very handy display. This panel meter simply connects to whatever DC supply you are trying to track, easy to wire up!Simply connect the red wire to the positive supply, and black ...

SKU: PL-4049 | Brand: Pololu

The ACS724 Current Sensor Carrier provides a compact breakout for Allegro's ±50A ACS724LLCTR-50AB Hall effect-based linear current sensor. It offers a low-resistance (~1.2 mΩ) current path and electrical isolation up ...

SKU: EC-SEL7125A | Brand: Elecrow

The ACS712 Current Sensor (5A) provides a simple way to measure AC or DC current up to ±5A. Based on the Allegro ACS712 Hall effect sensor, this module outputs a proportional analogue voltage that can be read directly...

SKU: SF-SEN-13679 | Brand: SparkFun

The SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for moderate AC and DC current sensing applications. The ACS723 sensor uses a Hall effect sensor to output a voltage relative to ...

SKU: EF-EF04015 | Brand: ElecFreaks

The Octopus TA12-100 is a non-invasive AC current sensor brick from ElecFreaks. It uses a current transformer to measure AC current flowing through a wire without needing to cut or splice the circuit — simply clamp it...

SKU: AF-904 | Brand: Adafruit

This breakout board will solve all your power-monitoring problems. Instead of struggling with two multimeters, you can just use the handy INA219B chip on this breakout to both measure both the high side voltage and DC...