Honeywell Dual Tec Motion Sensor -- Part #: DT8035. Sold as used/surplus from our security integration company -- may be open box or old stock. Strictly as-is: no returns, no warranty, no guarantee of functionality. We can't confirm all original parts/accessories are included -- photos show exactly what ships. Not responsible for system compatibility; please verify part numbers first. Buyer assumes all risk. Message us for additional photos before buying.