I believe this is a straight circulating pump ... no thermostat, no timer. Apply power, it runs, take off power, it stops. I think this is meant for mounting near the water heater, and powering a recirc loop.
I have been using a Laing Autocirc pump for about 8 years -- this has a timer and a thermostat, and sits under the sink of my furthest bathroom. Works like a champ. When in the 'on time', it will keep the hot water at a set temp (something like 85 or 90deg) and then shut off. In the 'off time', it doesn't run. You can use a thermostat here, because this is where you want to control the temp. Model: ACT-303-BTW - Autocirc. Designed for a situation where you don't have a dedicated recirc line -- uses the cold water line to push water back to the tank. Warms the cold line up a bit, but not a big deal compared to a hot shower without a 5 min wait (and probaby 10-15 gals of wasted water).