AC 6-in-1 Meter

This is an excellent product that I continue to be very happy with. I wanted to mention a few things that might be useful to potential buyers.1. Expanding on the instructions of how to reset the total energy to zeroThe instructions say to hold the button down for 5 seconds until the energy value flashes and then release the button and tap it once again. That's the correct procedure, but what might be confusing is that there's an intermediate event that's not mentioned.When you press and hold the button, after 3 seconds the main display disappears and the words SET CLr appear. Since the energy numbers didn't start blinking but instead the screen with the energy numbers just disappeared from view you might be tempted to release the button. But don't do that! Instead keep holding the button for another couple of seconds and the main screen will reappear with the energy numbers flashing. ONLY THEN can you release the button and tap it once more to zero the energy value.2. Understanding the precision of the energy numbersNote: In what follows I'm using the term "precision" to indicate the precision of what can be displayed, not reproducibility of repeated measurements.Because the energy display has only one fixed position for the decimal point - to the right of the leftmost digit - there are some limitations on the precision that can be displayed in different energy ranges, particularly above 10 kWh. I've attached some photos to illustrate this.The device has an energy resolution of 1 watt-hour (Wh). It won't display, for example, 0.5 Wh. A photo shows a display of 002 Wh.Many people will want to look at energy use above 100 Wh, and at that point the device begins displaying three significant digits. A photo shows a display of 132 Wh and another at 896 Wh. The measurement uncertainty in this range is 1 Wh. For example in the 132-Wh photo we know the energy is at least 132 Wh but less than 133 Wh. At 100 Wh this would represent a 1% uncertainty and it would be a 0.1% uncertainty at 999 Wh, just before the display mode changes.Above 999 Wh the decimal point appears and the display units change to kilowatt-hours (kWh). There are still three significant digits because the energy is displayed with two decimal places. Photos show 1.23 and 9.52 kWh. Just as in the previous display mode, the uncertainty beyond the last digit represents 1% at 1.00 kWh and 0.1% at 9.99 kWh.But at 10 kWh the fixed-position decimal point comes into play and things change. Because there is no position for a decimal point between the second and third digits the display can't show 10.0 but instead has to show 010, which is shown in a photo. This means that we know the energy is at least 10 kWh and less than 11 kWh. This 1 kWh uncertainty represents 10% at 10 kWh - far higher than the precision associated with measurements up to now. Obviously this 1 kWh uncertainty will become less important at higher energy ranges, representing 1% at 100 kWh and 0.1% at 999 kWh, the maximum energy that can be displayed. But it may be to much for some users wanting precise energy measurements closer to 10 kWh.To summarize, in the energy range from 100 watt-hours to 10 kilowatt-hours the device can display energy with a precision no worse than 1% and as good as 0.1%, which may be perfectly adequate for most users. Users who want to make careful measurements in the 10-30-kWh range - which may include PHEV owners and those partially recharging EV's - need to be sure that they understand what the display is capable of in this range.3. Exceptional customer-service experienceI bought two of these units in April, 2022. After making the measurements I needed I put them aside. In January 2025 I need to make some further measurements but had problems reliably resetting the energy to zero (which later turned out to be my own misunderstanding. See item 1.) I contacted CrocSee's customer service, hoping that they could tell me what I was doing wrong. Instead they offered to replace the units even though they had been out of their one-year warranty for almost two years! I very much appreciated this exceptional customer service, and I'm very happy with the product, which is meeting all my requirements.

Using this to monitor output from a SSR that I control with a manual potentiometer. Works well and very readable display (see photo- taken in bright sun but shaded). It had gotten past me that this display isn’t rated below 80 volts. While reality is that it continues to work down to 58 volts AC current is still around 4 amps at that voltage and far more important to me than voltage so I’ll power the meter from input side of the SSR instead which will be useless for output voltage monitoring (not to mention wattage, PF) but will let me monitor current down to zero.The split current sensor doughnut is very convenient.I wish there was a little more room for managing wire impingement with the case cutout for mounting the meter because it is super tight wire clearance but I made it work without much extra effort.

The sensor was straight forward to install. I really liked the led back light with a button to turn on and off. Also liked the current core sensor can split and slide over to clamp on instead of having to remove the wire.Unfortunately, I wish the leads coming out of the sensor were longer. It’s a little strange to need 24V AC, but I hooked it up to the 24V transformer required to run the doorbell. Might need to purchase a 24V AC transformer for other specific applications. They pull so little current, I hooked them up to the same source.I bought two of these (one for each phase on my house) to see the independent loads. This will help once we have to use the generator to try to keep the loads balanced to obtain maximum life of the generator.All read outs and measurements seem accurate and the accumulation function works. I trust the other review comparing to a fluke device and that heavily impacted my purchase. Very happy.

For the money this is an absolute bargain. Very easy to wire up and works beautifully and is very accurate (verified with high end power analyzer).To get 6-readings simultaneously on the display is so very nice.CONTRARY to a lot of Q&A answers on this product I can absolutely verify this device works perfect with only one split-core current transformer (one unit) on North America 240VAC circuit measurements (using 2-Hot and no Nuetral). Even the supplier said it would not work, incorrect, it works fine you just can't use the Neutral line as then you would need two current transformers due to unequal legs.Check out my photos to prove it works fine on 240VAC with 2-hot legs, I'm measuring a garage heater in my photos on low and high heat settings.Excellent product and very highly recommended.

The media could not be loaded. This is a good value digital watt meter that allows you to monitor usage or load for an individual or group of circuits. I installed this to see if it would work with a portable generator to help monitor load and optimize economy. We live on the coast of NC and see hurricanes and severe storms on a regular frequency. This allows me to get the most out of my generator without risking overload and it helps me balance the load. By passing the two hot legs of the generator supply through the transformer in opposite directions I can use one of these to monitor the whole load. The split transformer also allows me to easily revive this and replace if necessary. This says it is rated for pure sine wave only, but has seemed to work in about 2-3hrs of testing on “dirty” generator power.