CL809 Outlet Aquarium Thermometer Temperature Controller


Outlet Aquarium Thermometer Temperature Controller

Pre-wired electronic heating/cooling thermostat temperature controller for fish tank, turtle tank, water, reptile terrariums. 10A  double sockets thermometer with dual probe( waterproof). Widely used in Aquarium, Seed Germination, Reptiles, Hatching, Homebrewing, Fermentation, etc..



  • Dual Group Display Window: display the temp of the main control and over-temperature protection at the same time.
  • Two Probes: Your fish might be in danger as it is hard to know the probe is broken immediately if the temperature controller has only 1 probe. The dual probe aquarium temperature controller will alarm if the temperature difference between 2 probes is bigger than 1/2℃, and the window displays “EH”, buzzer alarm, and it will close the output shortly.
  • Dual Protection: The aquarium temperature controller is equipped with 2 relays to ensure that the power can be turned off under any circumstances, this will protect your fish from being hurt by overheated water.
  • Plug and Play designPlug-in type power supply, socket-type output temperature control system, convenient for users to use on different occasions, eliminating complicated wiring and maintenance.The 800w high-power aquarium temperature controller is compatible with most kinds of heaters, you don’t need to assemble the product yourself, just plug and play.
  • Heating/ Cooling presetThe Self-diagnosis of temperature probe.  High/Low alarm mode selectable.
  • Audible Alarm: High and Low temperature alarm is available when the temperature is over or the sensor is with an issue.

Main Features

  • Power supply: 220V AC 50/60Hz
  • Sensor: 2 no.s of NTC 50K, one is control-temperature probe, the other one is over-temperature probe
  • Support reading with Centigrade or Fahrenheit unit;
  • Main relay output capacity: normally open contact, 10A max. (recommend: cooling 0.5P or heating 800W)
  • temperature Control Mode: On/Off Control, Heating/cooling control
  • Over-temperature and sensor fault alarm;
  • “LLLL” or ” HHHH” will be displayed in the PV window if the temperature probe is fault.
  • Alarm high and low temperature alarm, Buzzer alarm.
  • Ideal thermostat for homebrewing, fermentation, beer/wine storage, aquarium heater/fans, greenhouse heat mat, heating pad, etc.

Easy to work, make life easier!

Plug and Play, User Friendly

Your Guardian for your Aquarium



  • Input Power: 220VAC, 50Hz/60Hz
  • Temperature Control Output: Relay, 2 no.s Max. 10A
  • Input Power Cable Length: 1.5m (5ft) ​
  • Output Power Cable Length: 30cm (1ft)
  • Control Temperature & Over temperature alarm
  • Temperature Control Mode :On/Off Control, Heating or Cooling
  • Temperature Display Range: -40 ~ 120°C, resolution: 0.1°C(-9.9 ~ 99.9°C)
  • Temperature Control Range : -20 ~110 °C, resolution: +/-1°C
  • Sensor Type: NTC 50K sensor (Including)
  • Sensor Numbers: 2 no.s.  One is for controlling temperature output, the other one is for over-temperature alarm.
  • Sensor Length: 2m / 6.56ft ​
  • Storage Temperature: -20~ 60 ° C
  • Storage Humidity: 20~85% (No Condensate) ​
  • Socket main output: 800W max 220V AC
  • Relay contact capacity: normally open,  220V 10A AC

Buzzer Alarm:

  • High and Low temperature alarm
  • Over-temperature alarm
  • Abnormal heating alarm
  • Water level protection alarm
  • Dimension Body: 137x75x40mm
  • Dimension Socket:
  1. US Version: 85x42x24mm
  2. EU Version: 135x54x40mm
  3. UK Version: 140x51x27mm
  4. AU Version: 112x46x27mm

Net Weight: about 600g

Gross Weight: 700g​

Warranty: 12 months

For support, please visit support center or email us at

1 × CL-809 Outlet Thermostat Temperature Controller

1 × Manual