Okay, I stole the title from the classic EEVBlog # 66, and no, I didn't actually go canyoning or throwing it off a dam. However, I had the unfortunate experience of putting my Brymen 867 through some abuse and figured I'd share. I've had the Brymen for about a year and it's been decent, few minor annoyances like the short backlight, cheap feeling, meh probes, moderate accuracy, and long auto-range switching delay; it's always kind of been second-rate to my Fluke 289. A lot of people trust in the ruggedness and reliability of Fluke's over a cheaper but well-specd unit like the Brymen's, have heard it numerous times. These units do not have any stated waterproof rating, drop rating, has a softer/removable outer cover, and generally doesn't feel anywhere near as "solid" and thoroughly engineered as the Fluke. I haven't really come across anyone else testing these aspects of them so I figured I'd post my short story:
After a late night of working on one of our cars I accidentally left the multimeter on the roof of my wife's car and forgot about it. She left before I awoke and I had no chance of saving it...
First time I've goofed up like that. So I went out following her trip on foot, in hopes it went flying off the side of the road and survived. I ended up finding it a couple miles down the road on a small turn I know she takes at least 30mph. From the looks of it: It fell off the roof of her car and eventually ended up face down on the road, another than car ran over it (black rubber tire mark on the back), it looks like it just clipped the end of it ( where the probes plug in ), it shot out from under the tire and flew about 6ft off the road and landed face up in a ditch on the other side of the road that was semi-filled with water. Oh yeah, and it rained, all night (6+ hours). The only reason I think a car ran over it and the damage wasn't just from falling was because of the black rubber-ish mark on the back and the side of the road I found it was opposite to the direction it should've gone if turning into the curve.
Surprising the damage was very minimal. There was the black tire mark on the back that came off really easily, there was some good scratching/gouging I'm guessing happened when the car clipped it and it slid/shot out under it along the asphalt, the probes were squashed in on the end some (will probably replace), and there was some water/mud in the probe ports. The dirty probe ports prevented it from initially working (getting InnERR as it thought I had probes plugged into all the ports). I set to take it apart and found that it has rubber gaskets everywhere, the battery cover, the screw holes, the turn dial, and the whole main casing has gaskets. There wasn't a single drop off water, anywhere. No components were smashed/bent/ajar, nothing. The only thing I needed to do was clean out the probe ports, and it worked no problem. Accuracy was just as good as before.
Sorry I didn't take more pictures, it was an afterthought after I had already found the unit and cleaned it up some.
Pic of the unit showing the main scratches/damage:
Pic of the unit opened up showing no water infiltration or internal damage what-so-ever:
Pic of the unit cleaned up, shaved off the plastic burs, cleaned up with iso, colored in the scratches some:
I'm pretty impressed I must say. I was never too-happy with this purchase until now. Any other cheap multimeter likely would not have survived that. If it had happened to any of my fluke's I probably would've cried (I baby my tools, this was a really unusual event for me). So even though these aren't necessarily engineered to the same ruggedness as Fluke's or other high end meters, I fully trust this will survive ANY reasonable abuse that a multimeter could expect to be subjected to.