I love that it has a full 6 long cord rather have too much than too little.
If it touches the flow tube or the glass a bit thats not a problem.
Not that they are helpful at all, but here are the manufacturer instructions. Its impressive if they made it a little bit shorter, I would use it in our main aquarium (the.Print, print page 1, rename the bookmark, delete from aquarium my manuals?Its got a lamp that indicates when it is eheim heating (located about 1/3 down the glass heating element section.Cost and Comparison: manual I think it is reasonable for this heater to be priced slightly higher than some competitors based on the better construction I have described.Comes with a suction cup mount (removable).I have not used this heater over an extended duration, but have used it for quarantine tanks and such. If you do this, dont bother with the suction cups just lower it down and let it dangle. It is the blue dial that you see just rotate it so that the arrow on the red ring points to the set point temperature you want to maintain.Adjustable set point, from 18 C (64.4 F) to 34 C (93.2 F).The cord is downright robust seems prudent to give a heater a good cord to make it efficient aquarium in getting the power where it needs.
This heater meets that expectation.
Length from element end to min manual water level line: 195 mm (7.68 inches).
I think the jager 25 watt capacity is manual ideal for the small Spec III and that the 50 watt will be overkill unless you keep your home very cold.
If you have your Jager heater set on 75 F and your (separate) thermometer indicates a tank temperature of 78F, you would perform a calibration to correct this by rotating the red pointer around aquarium from 75 F to 78 F (without moving the blue ring).