Hydor Theo Water Heater has a patented heating film and special shatterproof glass which makes this submersible heater virtually unbreakable. Theo switches itself off if the heater is not fully submersed, avoiding overheating and damage. Precise temperature knob clicks in 1 degree F increments, and an indictor lamps lets you know when its on. Suction cup clamps included.
Theo 200W for 100–150 liter tanks Designed for hydroponics nutrient tanks and aquarium use with the exclusive PTC (Positive Thermal Coefficient) technology.
The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest hydroponics nutrient tanks and aquarium heater lines on the market. UL listed by design, not by the use of accessories. Made from specially engineered shatterproof glass, while not unbreakable, is designed to resist breakage in most normal hydroponics nutrient tanks and aquarium situations.
High accuracy due to the use of precise micro-switch technology.
For use in freshwater, marine aquariums and hydroponics nutrient tanks.
The 50W & 100W/150W models, at 7" & 8.9" respectively, are among the smallest sized heaters on the market.
Features:
The first shatter-proof heater thanks to the peculiar glass tube.
Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube.
Free positioning in aquarium with supplied suction cups.
Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage.
Two year manufacturers warranty.
The theo ‘minimum water line` requirement must be followed for proper operation.
