Features:It controls the temperature with an NTC sensor placed externally.With 10K NTC sensor, additional 3m sensor cable included.With manual switch and knob for easy operation.Can fit into a standard single switch backbox.LED indicator is light when heating is on.With manual switch and knob for easy operation.Full Installation and Operation Instructions Included. Specifications:-Power supply: 220V 50/60HZ-Power consumption: 5W-Max. Current: 16A-Adjusting range: 0~40-Differential per. tem.: 1 -Operating temperature: -5~60-Degree of protection: IP20-Housing material: self-extinguishing Polycarbonate(PC)-Floor sensor: NTC sensor 3m-Dimension: 86mm x 86mm x 49mmPackage Included:1 x Manual thermostat1 x 3 meter sensor cable2 x Mounting screws1 x English user manualNote:Pls confirm the fit item if it matches your models before you purchase.1. Due to computers display colors differently,the color may vary slightly from the above images,Thanks for your understanding2. Manual measured, please allow 2-4mm error3. You have any questions, please feel free to , we will reply as soon as possible and help you solve szrh21