electronic timers with 1 second intervals...?

[flipteg]

is there such a thing as an electronic timers that will allow me to control on/off with an interval of 1 second...? the common ones at Home Depot will only allow controls at a minute intervals...

i want to use it on an Aqualifter to dose a 2 part additive... if there is such a thing, is the Aqualifter consistent enough to let me do this...?

another option is to get a Reefkeeper 2 but i am not sure if it would allow me to use the timers in such a way...

 

[flipteg]

this is a semi-expensive solution i found at twopartsolution.com

http://www.twopartsolution.com/index.php?main_page=product_info&cPath=94&products_id=29

the flow is slow enough to be used with a minute timer, but i am not sure about the pump's reliability... so i'm asking for opinions or alternatives before i spend almost $200 for 2 of those...

the perfect solution is a Litermeter 3 but i can not afford one of those...

 

[Freed]

Why do you want/need one second intervals?

 

[flipteg]

cause it will be easier and more accurate to control how much liquid is dosed...

 

[Freed]

Hmmmmmm, wonder why the link won't work. Marine Depot has the Aqua Lifter pump for $12 and is very reliable.

 

[PSam]

Just get a Litermeter 3 with an extra remote pump. A little pricey initially, but well worth it.