MABIS Basal Digital Thermometer
Yes, it takes about a minute to take temp but seems accurate and precise. Used it for three months, with LH strips, before I got pregnant.
Got this online (Ebay) for very cheap (8$) so cheap I was worried it wouldn't work, but it does! If you're going to get this save a few bucks get it off eBay. For the price definitely 5 stars have had no issues at all so far.
It works really well. It does take a little longer than a regular thermometer to take your temperature, but it's reasonably priced and seems accurate.
veryyyy slow at taking temp.