http://mdshop.us/1P1t8y5 The Smart ATO Micro is amazingly compact and incredibly easy to use.
Because of the tiny size and magnet mount, you can install this ATO onto just about any tank. It utilizes an optical sensor to detect the water level which means it has no moving parts that can fail or get jammed by snails or calcium build up.
The optical sensor is extremely accurate and will work in complete darkness so it is suitable for mounting inside your tank stand.
The included pump is capable of pushing water up to 6 ½ feet and includes all of the tubing and mounting accessories you need.
It features Smart ATO’s Quick Security Technology to ensure years of worry-free service.