Offers adjustable recording and auto hold thresholds to specify a percentage change in the readings that begins a new event The AstroAI AM33D is rated to measure up to 500V with a Category II insulation rating. However, it isn't auto-ranging, so you need to set the appropriate scale for your measurement, choosing between 0-200mV, 0-2000mV, 0-20V, 0-200V, 0-500V, with the precision (number of decimal places) of each measurement changing for each range.

Adjustable recording and auto hold thresholds, specify a percentage change in the readings that begins a new event.

It is also worth noting that, like the Fluke 117, the AstroAI 6000 is a True-RMS meter. This means they can more accurately measure complex electrical waveforms, like those found in HVAC systems or variable motor drives — particularly brushless motors and their electronic speed controllers. Other Functions I wish Southwire offered a current probe accessory as Fluke and Flir do. In that case, the Southwire TechnicianPro Bluetooth Multimeter would be my only meter because it easily does everything else. I need to measure current too often not to have a clamp meter of some kind. If I was only doing control wiring or new construction, it would fit the bill. As it stands, I’d have to move up to something like the MaintenancePro series. The Fluke 233 Digital Multimeter with its removable display gives you the flexibility to take measurements in hard to reach places or in areas with restricted access. You can be in two places at once and reduce the risk of arc flash by separating yourself from hazardous measurement situations. Just connect the meter to the test point and then place the display in a location up to 10 meters (33 ft.) away where you can see it. No more having to stretch into tight spots or hard to reach locations to take measurements. No more having to hold both the meter and the test leads to make a measurement. The Fluke 233 is ideal for any application where the measurement point is separated from controls or where you can't stay close to the meter during measurements due to hazards, moving machinery or in clean rooms. Plus, it features True RMS AC voltage and current for accurate measurements on non-linear signals. Includes a selectable AC filter (smoothing mode) to help display a steadier reading when the input signal is changing rapidly or noisy.

Allows you to take measurements without holding the meter, to improve visual focus on probes and augment safe electrical measurements Like other Multimeters, the bluetooth multimeter have several notes in using, for example: donot measure resistance when you supply power for it. So we suggest strongly you to read the notes of multimters for fear that the device cannot use normally. This Bluetooth Multimeter is a portable multimeter, a device that gathers the voltage, resistance and current. And it can sent these data to other devices via Bluetooth, so that we could observe the data through other devices. Next we will demonstrate you how to use it.Crest factor of ≤ 3 at full scale up to 500 V, decreasing linearly to crest factor < 1.5 at 1000 V. The meter’s Bluetooth capability, paired with Southwire’s MApp mobile app, is the outstanding feature. Now that I’ve used it for a while, I don’t want to use a meter without it! This functionality improves safety and workflow efficiency because you don’t have to be within eyeshot of the meter to read and control it. Selectable AC filter (smoothing mode) helps display a steadier reading when the input signal is changing rapidly or noisy. The Fluke 289 is the next generation high performance industrial logging multimeter. This Fluke Connect-compatible DMM is designed to solve complex problems in electronics, plant automation, power distribution, and electro-mechanical equipment. Let the 289 be your watchdog for systems or processes while you are off doing other jobs. It provides the ability to log data and graphically review up 10,000 recorded events and logged readings with on-board TrendCapture. Zoom on trend provides a 14x zoom to view and analyze data—without needing a PC.