I have been using Rat Zapper units (by a few manufacturers) for DECADES. Our original unit was made by Agri-zap, then they were bought out by another company and the units were called Raticator, and now it seems Victor bought the design and they are back to being called Rat Zapper -- essentially the same/similar design through the years. We use them primarily to kill mice but will get an occasional pack rat or ground squirrel. Many of our friends have them too (we live in a rural area). They have worked great for many years and we swear by them!
Sometimes it's difficult to remove the dead rodent (b/c they can get stuck), so I bought 12" stainless tweezers on Amazon ($5.50). After a kill, if the rodent gets stuck, we REMOVE THE BATTERIES (CANNOT TAKE CHANCE OF GETTING SHOCKED B/C IT'S HIGH VOLTAGE THAT MIGHT KILL YOU) and use the tweezers to remove the stuck rodent. I am positive that Victor would absolutely not recommend this, but we have used tweezers for years -- BUT AGAIN, YOU MUST REMOVE BATTERIES BEFORE USING TWEEZERS TO BE SAFE! I can't find the specs on Victor's website, but Google indicates the Rat Zapper discharges 6000 volts(?) - if that is true, that is a TON of voltage!
When there is rodent debris on the floor of the unit (feces, urine, fur), you need to clean it, or the unit may not work. I duct-taped an old toothbrush to a wooden paint stir stick to make a long cleaning brush. We have not used hydrogen peroxide to clean (per Victor recommendation) but instead mix small amount of soap+water, dip brush into mixture, use brush to clean floor of unit, then dip brush in clean water to rinse gently until clean (doesn't have to be perfectly clean but do a good job), then completely(!) air dry before putting bait back in and resetting it. However, if you remove a dead rodent quickly, you do not have to clean it often. However, a word of caution -- be careful when cleaning -- WATER IS A RAT ZAPPER'S ENEMY. When cleaning, do it slowly and do NOT splash water! DO NOT get water on the top of the unit or in the unit on the inside CEILING that has openings to the circuit board. I made this mistake once and ruined the circuit board and had to replace the unit. Otherwise, these units have worked flawlessly for YEARS.
However, I recently had to replace one of my units after waiting too long to remove a zapped mouse one weekend and another rodent must have climbed in (presumably to eat the untouched bait the zapped mouse didn't have a chance to eat) and chewed the inside wires right through = dead unit. Argh! Advice: do NOT wait to remove a dead rodent, especially if there is still food inside and the unit has been discharged -- there will be other hungry visitors.
I then purchased TWO replacements from Victor's website (one for us and one for a friend who wanted another one) in late February of this year. With our old zappers, when unit is turned on the light on top would quickly flash RED once and disappear (indicating it's armed and ready) and with a kill it flashed RED every 1-2 seconds (red is easily seen from afar). When the Victor units are first turned on, it flashes GREEN once or twice (or RED if your batteries are too low), light goes off, it makes a short-lived buzzing sound (my old unit never did that but apparently this is normal with these units), and the unit is ready to go. With a "kill," the unit is SUPPOSED to flash GREEN every 7 seconds (Attn engineering -- in our opinion, the new 7-second flash cycle is WAY TOO LONG. Users want to be able to check the units quickly (we are all super busy), not stand there and have to wait 7 seconds for a flash; is far easier to detect flashes every few seconds vs. every 7 seconds – too long). However, these 2 new units have yet to flash AT ALL with ANY kill. Both my friend and I had the same experience with the 2 units -- i.e., no flashing light but discovered dead mice inside. Tested several more times, including with brand new batteries, and each time there is a dead mouse but no flashing green kill indicator light. Since the flashing kill indicator light on both units is not working and both were purchased at the same time we are wondering if could this be a manufacturing defect (maybe same lot #)? In any case, this is a big deal to us b/c although the units did kill the mice, instead of looking over from afar to see the flashing kill indicator light, we now have to climb over stuff to pick up the units to check inside for a dead rodent. That means one of the best features of these units (the kill indicator light) is not working.
In addition, with these new units, the batteries are not lasting as long as what the website says they should -- i.e., 1 set of batteries (non-rechargeable) should last for 20 kills -- nope, they are lasting for about half that or less. I am sure the batteries are not the problem -- we have been using the same brand for yrs. During certain months we can get a mouse per day. If we need to change batteries every 10 days, this makes these units far more costly than they already are. Wonder if anyone else is having this battery drainage issue?? The batteries should last as long as what the Victor website says.
I really want to love these Victor units and to recommend these to others (as I have for years) but with the lack of a flashing kill indicator light and the draining of batteries, I cannot recommend them -- unless we just happened to receive 2 defective units??? Victor, please advise if you have any suggestions or if there is a way to remedy this problem. If they are defective and are replaced with fully functioning units, I will be happy to amend my review.