1. infrared detection (indoor only)
2. multichannel wireless telecontrol, original two remote controls
3. precise identification, delayed alarm, so you can use the remote control in front of the alarm power on and off to prevent having to alert when the alarm to make, alarming rate of accurate 100%.

4. English neutral packing without instructions, it is very simple to use

The alarm sound level: 105dB

Remote distance: 0-4 meter (not separated remote control, model all remote universal)
detection range: 0-4 m (for temperature of 0-25 degrees, not separated of induction)