Description: 1. This new innovation Programmable Wireless thermostat is used to control heating or cooling devices to maintain a stable and comfortable room temperature. It has two working mode, standard heating mode, and standard cooling mode,in addition you can activate programming mode during those two mode, which will show P next to the time when program(P1~P8) is working.   2. You only need to preset a TARGET temperature, then it will automatically turn on or turn off your home electric heating/cooling devices to maintain a stable room temperature. Furthermore, you also can preset P1~P8 with different TARGET temperature in different time range to obtain a comfortable circumstance for your families and save energy.   Features:   1. Plug and play, no need installation.   2. Super big LCD with green backlight, easily operate in dark environment.   3. Standard heating mode, Standard cooling mode.   4. Programmable design,can set different target temperature in different time range.   5. °C/°F switchable.   6. Clock display: 12/24h switchable.   7. RESET: One button back to factory mode.   8. Super long standby time, work with 2pcs*AA batteries.  9. Multi-channels,Easily learn code and built-up control system without interruption.   10. Children lock,Automatically lock this device if no operation for 10 minutes.   Functions:   1. Programmable version: Available set different target temp. in different time range.   2. Deactivate programs: Shut down all preset programs in two steps.   3. Built in temperature sensor: Control heating or cooling devices from anywhere (within transmission range).   4. Super big LCD with green backlight: Easily operate even in dark environment.   5. Heating/Cooling mode: Control heating in winter or cooling in summer.   6. Multi-channels: Easily learn code and built-up control system without interruption.   7. °C/ °F switchable: Easily switch between °C/ °F during clock setting.   8. Long term standby: Support 2pcs*1.5V AA batteries,low standby current.   9. Children lock: Automatically lock this device if no operation for 10 minutes.   10. New design: Desktop/Wall mounted/Hold in hand.      Specifications:   Color: White;   Material: ABS+PC+Metal;   Plug type: EU, UK, US;   Max Ratings:  230VAC/16A/50Hz/3680W(EU);   230VAC/13A/50Hz/3250W(UK);   120VAC/15A/60Hz/1800W(US);   Temp.Range:0-60°C/32~140°F;   Heating program: P1~P4;   Cooling program: P5~P8;   Temperature accuracy:± 1 °C/±1.8 °F;   Current Temp. Resolution: 0.1 °C/ °F;   TARGET Temp. Resolution:1 °C/°F;   Power supply: 3V(2pcs* AA 1.5V),(batteries not included);   Transmission frequency: 433.92Mhz;   Max range: 20 meters in open land;   Product size: 124x82x42mm(remote),132x62x76mm(plug in socket);   Net Weight: 121g(remote),127g(plug in socket).      Package included:   1 x Host,   1 x Socket,   1 x English manual,   1 x Package Box.