Features:Mini and light weight design.Large and clear LCD display.Wide Temperature Range (-50-90 Deg.C)Dual heating and cooling function.Automatic over temperature alarm.Control temperature by setting the temperature set value and the different value.Temperature Calibration.Refrigerating control output delay protective.Wiring diagram for installation included.Descriptions:This mini Temperature Controller is an excellent and convenient multifunction device for controlling temperature in Aquariums. The stability of aquarium temperature is one of the crucial factors that contributes to the health and safety of your fish. By utilizing the temperature controller, you can provide an environment with optimal temperature for your fish. This advanced temperature controller can measure and control temperature from -50 to 90 C.This device is also suitable for Laboratories use and other temperature-controlled systems.Specifications:Color: BlackUsage: IndoorDisplay Type: DigitalTheory: Temperature ControllerDisplay: LCD displaySensor: NTC sensorUse for: Aquarium, Terrarium, Vivarium, PaludariumStyle: Standing StationDisplay Size: 4.0 - 6.9 InchesSensor: NTC sensorTemperature Measuring Range: -50 - 90 Deg.CControl temperature range: -50 - 90 Deg.C (adjustable)Control temperature difference: 1- 10 Deg.C (adjustable)Resolution: 0.1 Deg.CAccuracy: 1 Deg.C (-50 - 70 Deg.C)Sensor error delay: 1 minuteRelay contact capacity (Heating): 10A (max) 250 VRelay contact capacity (Cooling): 10 A (max) 250 VCompressor delay protective time: 1 ~ 10 minutes (adjustable)Operating Temperature: 0 - 60 Deg.CStorage Temperature: -30 - 75 Deg.COperating Relative Humidity: 20 ~ 85 % (No condensation)Alarm Output : BuzzerPower Supply: 110~ 220V AC 10% , 50 / 60 HzPower consumption: < 3 WCable length: 1 MItem dimensions: approx. 84*74*34 MMPackage includes:1 x Mini-Temperature Controller Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.