Top 5 Power Circuit Probe in 2021/ Best Maestro Power Probe

Top 5 Power Circuit Probe in 2021/ Best Maestro Power Probe

There are many kinds of automotive circuit testing tools on the market. With so many tools, which one is better, today we have come up with 5 good circuit tools sold recently for analysis and comparison.

1. KZYEE KM10 Power Circuit Probe Kit

Price: 79usd

Functions: Only can test the DC Voltage, AC Voltage, Resistance and Diode of the 12v-24v electrical systems

KM10 Test Tool Specifications:

DC voltage range: 0-65V +1digit
Resistance range: 0-100 kΩ
Rating current: 1-10 Amp
Frequency response of tone passes through 0Hz to 10Khz.
Testing Standard: 100% current: Hold > 1 hour150%
operating voltage: 12V-24V
Applied to simple circuits, suitable for the general population

2. KZYEE KM50 Power Circuit Probe Kit (upgraded version of KM10)

Price: 139.99usd

Functions: can test DC Voltage, AC Voltage, Signal Frequency, Duty Cycle,  Injector test, Resistance, and Diode.


Supply Voltage: 8V DC ~ 30V DC
DC/ AC Voltage Test: -110V ~ 110V
Frequency: 0Hz ~ 1Mhz
Duty Cycle: 0.0~100.0%
Rating Current: 1A~8 A
Fuel Injection: Voltage: 0~180V
Time: 0~25ms

Applied to complex circuits, suitable for technicians

Other functions:

With HD Inspection Camera & IP67 Waterproof: 2.0MP borescope offers you a wonderful experience of capturing a clear close range HD video in AVI format and image in JPG format with adjustable resolutions 1920x1080, 1280x720, 640x480.The inspection camera lens are both IP67 waterproof, which means you can carry out inspection work in wet pipes or underwater with ease

Built-in high capacity 2200mAh rechargeable battery, this snake camera can works continuously up to 4-5 hours after fully charge, perfecting for long time outdoor maintenance and repair work

KZYEE KM50 Power Circuit Probe Kit

3. Power Probe PPH1 hook

Price: 319.99usd

Functions: can test DC Voltage, AC Voltage, Resistance, Diode, relay test, injector test, component activation


Min Operating Voltage: 12 VDC
Max Operating Voltage: 48 VDC
Max Operating Temp: 50℃
Max Storage Temp: 70℃
Voltage Measurement: 0 - 99.9 VDC/VAC
Ohms Measurement: .001 Ohms - 15 Meg Ohms
Amps Measurement: .001 Amps - 99.9 Amps
Max Continuous Load: 25 Amps
Max Intermittent Load: 65 Amps for 8 Sec.
Hook Up Cables: 10 Gauge

Typical circuit tester, applied to complex circuits, suitable for technicians.

Power Probe PPH1 hook

4. Power probe Maestro PPTM01AS

Price: 305.9usd

Function: can test DC VoltageAC Voltage, Resistance, Diode, relay test, fuel injector test, component activation, Frequency

Min Operating voltage: 9VDC
Max operating voltage: 30 VDC
Max Tip voltage: 450 volts
Probe tip resistance to ground: 350k Ohms
Computer Safe: 0.1 mA floating tip
Voltage Measurement: -100 to 200 VDC/ADC
Voltage Resolution: -99.99 to 99.9V -0.01(10mV) / 100.0-199.9V-0.1(100mV)
Glitch capture: >380μS Min pulse width
Power feed test:<30mA
Resistance Measurement: 0.1Ohms to 10K Ohms
Frequency Measurement: 1Hz to 9999Hz
Fuel Injector mode: LED Flash @ min 35V @100μS pulse

Applied to complex circuits, suitable for technicians.

5. Sigmaprobe intelligent circuit tester

Price: 239usd, after discount is 189usd

Functions: Smart test(DC VoltageAC Voltage, Resistance, Diode, Frequency), multimeter mode, relay test, injector test, positive/negative test, component activation, oscilloscope mode, 0-5V power supply, upgrade system

① Display screen: (320 * 240 DPI) TFT true color display

② Operating temperature: 0-60 ° c (32-140 F °)

③ Storage temperature: 40-70 ° c (-40-185 F °)

④ External power supply: battery powered 12V or 24V

⑤ Minimum operating voltage: 9V

⑥ Maximum operating voltage: 30V

⑦ Maximum measuring voltage: 150V

⑧ Minimum measuring voltage: 0.1V

⑨ Resistance measurement range: 1 ohm ~ 200K ohm

⑩ Current measurement range: 0 ~ 18A

⑪ Maximum continuous current: 18A

Typical circuit tester, applied to complex circuits, suitable for technicians

Sigmaprobe intelligent circuit tester