Warwick, I have a Salter Aquatronic, which I've had for nearly 10 years. It works flawlessly and I've never had to do anything but replace the 9v battery twice. I use it ALL the time. The tare function is perfect and the automatic OFF has a long time span, so no shutting off when I'm right in the middle of something.
It weighs very small fraction of ounce amounts up to, I think, 13 pounds, which is about all a home cook would need. I've never felt the weight capability lacking.
It's also compact enough that I just prop it up against my backsplash of my counter when I'm not using it.
I've seen the scale at Linens 'n Things. Amazon also has the scale. They run about $60 and are worth every penny. I'd be lost without my scale.
Edit: Walt, you're right. I was trying to remember the name without looking at the scale. Love that little treasure.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!