Here it is B&B
It cost about £120 - i saw it cheaper elsewhere but didn't like the look of them. ..
RUCK Temperature Controlled Fans
Designed to fill a long-term gap in the growing market, the RUCK Temperature Controlled Fans sense airflow temperature and automatically adjust their speed to maintain a constant level of heat.
Based on the German designed and made original RUCK, these fans now feature a thermostat sensor inside the fan to measure the temperature of the airflow and then adjust the fan between four speed settings to maintain a nearly constant temperature without any additional hum.
Because of the internal sensor you can set up extraction with the fan outside of the grow room instead of using a probe to monitor the ambient temperature of the air inside the grow room (as with the Primair). This method will require a bit of fine tuning as there can be some temperature variation with longer lengths of ducting.
The temperature controlled fans are adjustable from 20° to 28° and also feature a slight delay to allow for brief temperature changes such as the opening of a door.
Each fan comes with a 1.5m cable pre-fitted, although a plug will need to be attached.
Expensive, but totally worth it in our opinion.
I'm not advertising - haven't even tested it yet and if it's naff i'll be the first person to say ^_^ .. But i've got hopes that it will be just the ticket!
It cost about £120 - i saw it cheaper elsewhere but didn't like the look of them. ..
Designed to fill a long-term gap in the growing market, the RUCK Temperature Controlled Fans sense airflow temperature and automatically adjust their speed to maintain a constant level of heat.
Based on the German designed and made original RUCK, these fans now feature a thermostat sensor inside the fan to measure the temperature of the airflow and then adjust the fan between four speed settings to maintain a nearly constant temperature without any additional hum.
Because of the internal sensor you can set up extraction with the fan outside of the grow room instead of using a probe to monitor the ambient temperature of the air inside the grow room (as with the Primair). This method will require a bit of fine tuning as there can be some temperature variation with longer lengths of ducting.
The temperature controlled fans are adjustable from 20° to 28° and also feature a slight delay to allow for brief temperature changes such as the opening of a door.
Each fan comes with a 1.5m cable pre-fitted, although a plug will need to be attached.
Expensive, but totally worth it in our opinion.
I'm not advertising - haven't even tested it yet and if it's naff i'll be the first person to say ^_^ .. But i've got hopes that it will be just the ticket!
,its not even 5 mouth old for the shop :no:, im going two see them to see what they can do for me,iv gone back to my 4" RVK Know, its never let me down,hope your one well work much better for you blue
.and i do lov them with the Temperature Controlled,
Kudo