A few thoughts on baby monitors; how you parent will affect how (or whether) you need a baby monitor. I’ve got a couple of “how to buy” tips if you do want one which I wish someone had told me!
First, do you need one? If you think you’ll be spending quite a lot of time where you can’t hear the baby without help (e.g., out in the garden, in the basement, in the workshop or garage), you’ll probably want one. Depending on how you handle the first couple of months, you may not need a baby monitor during that time. Little babies sleep a lot and are light enough to carry around that much of the time you can just keep the baby near you anyway. I wasn’t up to spending much time in the workshop or gardening in the first couple of months, so there wasn’t a problem there. We also had the baby sleep in our room at night so we could wake up quickly when she did, feed her quickly, and get everyone back to sleep quickly. By the time she moved into her own room, she could yell or cry loudly enough to wake us up in the night (and don’t worry, even if you’re a good sleeper, once you’re over the first sleep deprivation phase, you’ll wake up when the baby cries even without a baby monitor as long as her room isn’t too far way from yours).
After the first couple of months, when the baby’s a bit bigger and getting onto a routine of regular naps (at least in theory, ours doesn’t nap much) it’s handy to have a baby monitor so you can start doing more things a little further away and be aware of when the baby wakes up. Ours usually wakes up cheery and not making many sounds at all, so I wouldn’t hear them if I didn’t have a monitor. For this to work, of course, you need a monitor you can rely on, one that doesn’t have so much static that you can’t hear the baby over it.
So how do you choose a baby monitor? The most important thing in my experience is to get one from a store that will let you return it if it doesn’t work properly in your house/apartment/condo. We failed to do this with the first baby monitor and when it didn’t work, had no recourse. With the second I made sure I could return it for a full refund if need be.
There are lots of types of baby monitors, mostly classified by how they work. Those that use a 49 MHz transmission frequency have been around for years (we had one with our first child), are cheap, and usually work. They tend to have quite a lot of static, interfere with one another (important if you’re living close to other families that also have baby monitors), and can inadvertently eavesdrop (one of our neighbours picked up a conversation I had on a cordless phone on hers; I promptly bought a new 2.4 GHZ phone). Those that run on 2.4 GHz are in theory better but have problems of their own. We bought a Summer Infant 2.4 GHz monitor, which supposedly changes channels to be secure. In our house at least, it was so secure you couldn’t actually get it to work if you had the parent end more than a few meters away from the baby’s end. It wouldn’t work from the living room to the baby’s room, let alone from the basement or outside. (This was the one we bought first and couldn’t return). I’ve read lots of reviews of this monitor and other people seem to have got it to work, so I assume it’s something about our house, either the fact that we’re surrounded by wireless networks (which in theory might be interfering), or the fact we have some stainless appliances in the kitchen (a theory proposed by someone at the store where I bought the second monitor).
The baby monitor we finally bought and are extremely happy with is the Graco iMonitor. It uses something called “Digital Spread Spectrum (DSS)” technology to transmit the signals, has very little static, and works throughout our house and in the garden. It’s more expensive than a lot of other baby monitors but saves an immense amount of frustration, so if you think you need one, I’d recommend looking at this.