PHILIO PSP 01 (1)PIR, (2)temperature, (3)illumination 3 in 1 sensor z wave 400 series chip Adopt newest Z-wave 400series chip, support multichannel operation and higher data rate Super mini design and good PIR detect range Built in Illumination sensor while applied to light control With Tamper proof protection Adop Z-WAVE protocol to secure the success of wireless two way communication