FNIRSI DSO152 Handheld Oscilloscope Review I was tired of hauling a bulky benchtop oscilloscope out for simple checks on audio circuits and automotive sensors. The FNIRSI DSO152 Handheld Oscilloscope – 2.8″ TFT Digital Oscilloscope Kit 200KHz Bandwidth 2.5MS/s High Sampling Rate Port promised a pocket-friendly alternative with a real-time sampling rate of 2.5 MS/s and … Read more
FNIRSI 2C53P Tablet Oscilloscope Multimeter Review I was tired of juggling a separate oscilloscope, multimeter, and signal generator on my workbench. So I picked up the FNIRSI 2C53P Handheld Tablet Oscilloscope Multimeter DDS Signal Generator 3 in 1 to see if it could really replace three devices with one 4.3-inch touch screen. This 3-in-1 is … Read more
I’ve asked myself this question more than once when my car battery wouldn’t even make a clicking sound. You want to know if your Noco Genius can actually bring a totally dead battery back to life. Most Noco Genius chargers have a special force mode that sends a small current to batteries with zero voltage. … Read more
You plug in your Noco Genius charger, but it keeps dropping back to standby mode. This is frustrating when you just want to get your battery charged and back on the road. In my experience, this usually means the charger is detecting a problem with the battery, not the charger itself. A deeply discharged or … Read more
FNIRSI LCR-P1 Transistor Tester Review Ever stared at a pile of loose transistors and capacitors, wondering which ones are still good? I know that feeling well. That’s why I grabbed the FNIRSI LCR-P1 Transistor Tester — it weighs just 0.17 pounds and packs a 1.44-inch color screen. This little gadget is really for anyone who … Read more
FNIRSI LPM-10A Network Cable Tester Kit Review I was digging through a rat’s nest of Ethernet cables behind my desk and couldn’t tell which line went where. That’s when I grabbed the FNIRSI LPM-10A Network Cable Tester kit, which promises to trace wires and check for live voltage all in one handheld unit. This thing … Read more
FNIRSI FNB58 USB Tester Review Ever wonder why your phone charges slower on some cables than others? I sure did, so I grabbed the FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Power Tester Multimeter with App Software, Fast Charge Detection to finally get some answers. It packs a 2.0-inch TFT LCD, supports … Read more
FNIRSI 2C53T Handheld Oscilloscope 3-in-1 Review I’ve been burned before by cheap multimeters that can’t handle basic troubleshooting, so I was skeptical when I picked up the FNIRSI 2C53T Upgraded Handheld Oscilloscope. It packs a 50MHz bandwidth, 250MS/s sampling rate, and a 19999-count multimeter into a single handheld device. This 3-in-1 tool is really aimed … Read more
FNIRSI DSO-510 Oscilloscope/Signal Generator Review I was troubleshooting a car sensor and needed something portable that wouldn’t break the bank. The FNIRSI DSO-510 Handheld Oscilloscope/DDS Signal Generator 2 in 1 caught my eye with its 10MHz bandwidth and 48MS/s sampling rate packed into a tiny 3.8-inch body. This is really for hobbyists, automotive techs, and … Read more
I know the sinking feeling of finding a car battery that has been dead for months. You might wonder if your Noco Genius charger is powerful enough to bring it back to life. Deeply discharged batteries often fall into a state called sulfation, where lead sulfate crystals harden. The Noco Genius uses a special reconditioning … Read more