Features: *The shell of our thermostat is made of high-quality plastic material with fine workmanship, environmental-friendly, safe, durable to use. *Its temperature controlling range is from 0°C to 60°C, perfect for using to control heater, filter fan, cooling equipment and other signal device in your home, market and so on. *It has a large data scale and an adjustable button is for easy and convenient to adjust the controlling temperature, and the button color (red/blue) of thermostat could be choose for you. *Adopting standard rail clip design, 4 feet holders, easy to install and disassemble. *Circuit interfaces in the bottom of thermostat can make wire connection become more sturdy and safer. *Setting recommendations: The hysteresis (switching difference) of the temperature control should be take in account: 7K ± 4K (K= Kelvin) In order to determine the actual set point of the normally closed contact and change-over contact (when used asnormally closed contact), the maximum rated hysteresis should be ad-ded to the required minimum operating temperature. Example for Red KTO011 for heating: Required minimum temperature in enclosure: 5°C (41°F) Hysteresis of temperature control: +11K (=7K ± 4K) Set point on adjustment knob: 16°C (61°F) *Applications: The small mechanical temperature regulators are used to control electric heaters or cooling filter fans in electric cabinets, which are accidents caused by temperature factors. Widely used in communications, wind power generation, firefighting equipment, ships, petrochemicals, large factories, coastal factories, docks, water treatment facilities, equipment, etc. In addition, they can also be used as switching contacts for signal devices used as low-or high-temperature alarms. The adjustment range is 0 to 60. This product has the characteristics of easy installation, small size and long service life. It can automatically start electric heaters and fans, produce condensed water droplets, maintain a good working environment, and protect components. It can be fixed on DIN standard rails (DIN15, DIN32, DIN35). Specifications: *Switch temperature difference:7K (± 4K tolerance) *Service life:> 100,000 cycles *Connection:clamping torque 0.5Nm max., rigid wire 2.5mm *Control temperature range:0~60°C *Casing:plastic,light grey *Operating / Storage temperature:-20 to +80°C (-4 to +176°F) *Protection type:IP20 *Package Included:1pc *Operating / Storage humidity:max. 90 % RH (non-condensing) *Mounting:clip for 35mm DIN rail, EN60715 (or for exit filter EF 118 Series) *Sensor element:Thermostatic bimetal *Contact type:snap-action contact *KTO 011: heat Thermostat (normally closed); contact breaker for regulating heaters. *KTS 011: cool Thermostat (normally open); contact make for regulating of filter fans and heat exchangers or for switching signal devised when temperature limit has been exceeded. *ZR 011: heat and cool combined; control the heating and cooling devices independently. Package Contents: 1pcs Switch Thermostat Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.