Finding out how much current your project is drawing can be incredibly important whether it's a wearable, portable project, or just to watch the power consumption.
- Non-Invasive Current Sensor - 30ASKU: SEN-11005 Brand: SparkfunThis non-invasive current sensor (also known as a “split core current transformer”) can be clamped around the supply line of an electrical load to tell you how much current is passing through it. It does this by acting as an inductor and responding to the magnetic field around a current-carrying conductor. By reading the amount of current being produced by the coil, you can calculate how much current is passing through the conductor.
- SparkFun Current Sensor Breakout - ACS723 (Low Current)SKU: SEN-14544 Brand: SparkfunThe low current version of the SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for low to moderate AC and DC current sensing applications...
- ACS711EX Current Sensor Carrier -31A to +31ASKU: POLOLU-2453 Brand: PololuThis board is a simple carrier of Allegro’s ±31 A ACS711 Hall effect-based linear current sensor with overcurrent fault output, which offers a low-resistance (~0.6 mΩ) current path and electrical isolation up to 100 V. This version accepts a bidirectional current input with a magnitude up to 31 A and outputs a proportional analog voltage centered at Vcc/2 with a typical error of ±4%. It operates from 3 V to 5.5 V, so it can interface directly to both 3.3 V and 5 V systems.
- LTC4150 Coulomb Counter BreakoutSKU: BOB-12052 Brand: SparkfunOdometers 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 Coulomb Counter Breakout is here to be your odometer for current. If you are wondering: a coulomb is defind as, to put it simply, one amp for one second. This breakout is capable of constantly monitoring the current your sensor is using, is able to add it up, and will give you a pulse each time a given amount of amp-hours have been used. When used effectively and if you start with a full battery, you’ll always know exactly how much of it is left!
- ACS711EX Current Sensor Carrier -15.5A to +15.5ASKU: POLOLU-2452 Brand: PololuThis board is a simple carrier of Allegro’s ±15.5 A ACS711 Hall effect-based linear current sensor with overcurrent fault output, which offers a low-resistance (~0.6 mΩ) current path and electrical isolation up to 100 V. This version accepts a bidirectional current input with a magnitude up to 15.5 A and outputs a proportional analog voltage centered at Vcc/2 with a typical error of ±5%. It operates from 3 V to 5.5 V, so it can interface directly to both 3.3 V and 5 V systems.
- INA219 High Side DC Current Sensor Breakout - 26V ±3.2A Max - STEMMA QTSKU: ADA904 Brand: AdafruitThis 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...
- ACS714 Current Sensor Carrier -5A to +5ASKU: POLOLU-1185 Brand: PololuThis board is a simple carrier of Allegro’s ±5A ACS714 Hall effect-based linear current sensor, which offers a low-resistance (~1.2 mΩ) current path and electrical isolation up to 2.1 kV RMS. This version accepts a bidirectional current input with a magnitude up to 5 A and outputs a proportional analog voltage (185 mV/A) centered at 2.5 V with a typical error of ±1.5%. It operates from 4.5 V to 5.5 V and is intended for use in 5 V systems.
- ACS709 Current Sensor Carrier -75A to +75ASKU: POLOLU-2199 Brand: PololuThis board is a simple carrier of Allegro’s ±75A ACS709 Hall effect-based linear current sensor with overcurrent fault output, which offers a low-resistance (~1.1 mΩ) current path and electrical isolation up to 2.1 kV RMS. The sensor has optimized accuracy for currents from -37.5 A to 37.5 A, and the analog voltage output is linear for current magnitudes up to 75 A. The ratiometric output voltage is centered at VCC/2 and has a typical error of ±2%. It operates from 3 V to 5.5 V, so it can interface directly to both 3.3 V and 5 V systems.
- ACS37042KLHBLT-010B3 Current Sensor Compact Carrier -10A to +10A, 3.3VSKU: POLOLU-5454 Brand: PololuThis is the larger version of a simple carrier for Allegro’s ACS37042KLHBLT-010B3 Hall effect-based, electrically isolated current sensor in a 5-pin...
- ACS37042KLHBLT-010B3 Current Sensor Micro Carrier -10A to +10A, 3.3VSKU: POLOLU-5450 Brand: PololuThis is the smaller version of a simple carrier for Allegro’s ACS37042KLHBLT-010B3 Hall effect-based, electrically isolated current sensor in a 5-pin...
- ACS37042KLHBLT-030B3 Current Sensor Compact Carrier -30A to +30A, 3.3VSKU: POLOLU-5455 Brand: PololuThis is the larger version of a simple carrier for Allegro’s ACS37042KLHBLT-030B3 Hall effect-based, electrically isolated current sensor in a 5-pin...
- ACS37042KLHBLT-030B3 Current Sensor Micro Carrier -30A to +30A, 3.3VSKU: POLOLU-5451 Brand: PololuThis is the smaller version of a simple carrier for Allegro’s ACS37042KLHBLT-030B3 Hall effect-based, electrically isolated current sensor in a 5-pin...
- CT220RMV-HS5 Contactless Current Sensor Carrier ±15mT/150GSKU: POLOLU-5355 Brand: PololuThis board is a simple carrier of Allegro’s CT220RMV-HS5 TMR-based, contactless current sensor, which measures the magnetic field of the current flowing...
- CT220BMV-HS5 Contactless Current Sensor Carrier ±1.5mT/15GSKU: POLOLU-5352 Brand: PololuThis board is a simple carrier of Allegro’s CT220BMV-HS5 TMR-based, contactless current sensor, which measures the magnetic field of the current flowing...
- Adafruit INA237 85V 10A 16-bit DC Current Voltage Power Monitor - STEMMA QTSKU: ADA6340 Brand: AdafruitThe INA237 is an amazing power monitoring chip, with best-of-everything support: up to 85VDC common-mode, high or low side measurements, 16-bit ADC for...
- Adafruit INA238 DC Current Voltage Power Monitor - STEMMA QTSKU: ADA6349 Brand: AdafruitThe INA238 is an amazing power monitoring chip, with best-of-everything support: up to 85VDC common-mode, high or low side measurements, 16-bit ADC for...
- Current/Voltage/Power Monitor HAT for Raspberry Pi (4 Channel)SKU: WS-17539 Brand: Waveshare4-channel current, voltage and power monitoring HAT for Raspberry Pi with I2C interface and 0–26V range.
- ACS37030LLZATR-040B3 Current Sensor Compact Carrier -40A to +40A, 3.3VSKU: POLOLU-5231 Brand: PololuThis is the compact version of a simple carrier for Allegro’s ACS37030LLZATR-040B3 electrically isolated current sensor that uses two signal paths—Hall...Special Price $14.30 AUD, inc GSTRegular Price $21.20 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37030LLZATR-040B3 Current Sensor Large Carrier -40A to +40A, 3.3VSKU: POLOLU-5234 Brand: PololuThis is the large version of a simple carrier for Allegro’s ACS37030LLZATR-040B3 electrically isolated current sensor that uses two signal paths—Hall...Special Price $18.70 AUD, inc GSTRegular Price $26.50 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37042KLHBLT-010B5 Current Sensor Compact Carrier -10A to +10A, 5VSKU: POLOLU-5456 Brand: PololuThis is the larger version of a simple carrier for Allegro’s ACS37042KLHBLT-010B5 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $6.60 AUD, inc GSTRegular Price $8.90 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37042KLHBLT-010B5 Current Sensor Micro Carrier -10A to +10A, 5VSKU: POLOLU-5452 Brand: PololuThis is the smaller version of a simple carrier for Allegro’s ACS37042KLHBLT-010B5 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $6.60 AUD, inc GSTRegular Price $8.40 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37042KLHBLT-030B5 Current Sensor Compact Carrier -30A to +30A, 5VSKU: POLOLU-5457 Brand: PololuThis is the larger version of a simple carrier for Allegro’s ACS37042KLHBLT-030B5 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $6.60 AUD, inc GSTRegular Price $8.90 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37042KLHBLT-030B5 Current Sensor Micro Carrier -30A to +30A, 5VSKU: POLOLU-5453 Brand: PololuThis is the smaller version of a simple carrier for Allegro’s ACS37042KLHBLT-030B5 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $6.60 AUD, inc GSTRegular Price $8.40 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37041KLHBLT-010B3 Current Sensor Compact Carrier -10A to +10A, 3.3VSKU: POLOLU-5444 Brand: PololuThis is the larger version of a simple carrier for Allegro’s ACS37041KLHBLT-010B3 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $5.50 AUD, inc GSTRegular Price $8.00 AUD, inc GSTAvailable with 4 to 7 day lead time
- ACS37041KLHBLT-010B3 Current Sensor Micro Carrier -10A to +10A, 3.3VSKU: POLOLU-5440 Brand: PololuThis is the smaller version of a simple carrier for Allegro’s ACS37041KLHBLT-010B3 Hall effect-based, electrically isolated current sensor in a 5-pin...Special Price $5.50 AUD, inc GSTRegular Price $7.40 AUD, inc GSTAvailable with 4 to 7 day lead time
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