BTMETERBT-6688B Megohmmeter 200 Gig Ohm Digital Insulation Resistance Tester, 500V/1kV/2.5kV/5kV Test Voltage, Auto Ranging, Backlight Display

I needed a megohmmeter when installing Ditra heated floors and came across this when looking for one. The unit is well built, easy to use and did exactly what I needed it to at a fair price

The first unit I ordered had a miss-fitting negative lead that simply rattled around in the socket. I returned that one and received a second unit at no additional charge. One of the included batteries was leaking and measured zero; additionally it produced intermittent readings. Amazon refunded me for the second unit but told me to keep it. I decided to see if I could repair it rather than re-ordering another. I took it apart and found a loose solder joint which I fixed. The unit now works perfectly. I purchased it in order to verify the resistance of some high-gigohm resistors; the meter confirms their rated values within 1%. I've also tested it against various insulation materials for resistance with good results. A very nice meter if you get one that works!

Works great

More than accurate enough for quick bench or field tests. Doesn't 'feel' as solid as my Fluke but is considerably less expensive and has a greater range of testing settings. Thick padding does a good job of protecting the actual meter. Provided test leads seem a little flimsy. Time will tell how they hold up for daily use.Only complaint: 5 days to process the order. Then actual shipping only took 2 days and was delivered on a Sunday even with the free shipping option. Unique combination of under/over achieving on the same order.

I finally had a use for the BT-6688B Digital Insulation Resistance Tester and it does not work. The controls appear to work. The test/stop button turns the HV light on and off, but there there is no resistance reading and no high voltage at the probes. I also used a separate DMM to look for HV at the test jacks, but it is not there. The unit looks to be pretty well made and the price is right, but it's been 2 months so this one is going in the scrap bin...

I’ve only had the chance to use it a couple of times so far, however from what I’ve experienced testing 5kv airport lighting cable resistance, it’s doing what I bought it for. Compared to other meters I have, fluke, Klein, amprobe, etc... it’s well worth the price! The only complaint I would have, like most of the other reviews I’ve seen. The instructions are less than great, if you have any experience with meters you can figure it out, however the wording is just wierd in explaining the leads and how to operate the meter. Another would be the case or cheap plastic cover with a really cheap zipper! Ya I’ll be replacing that with a steel hard case from harbor freight. Other than that the meter is great!

works well

It looks good. Appears tough quality. But when I first used it in action, this tester I received did not show the voltage reading. It did not work. It looks like one the female jacks was loose. I returned it quickly. Didn't have reason to further use it. Few of a millions perhaps, chances like this.