Wireless Sensors (SensiNet)
Rack Sentry temperature sensor can be daisy chained in groups of up to three and wirelessly report at up to 700 feet outside and 230 feet inside. Uses an IEEE 802.15.4-compliant radio and is powered by C batteries. Battery life of up to three years at two-minute reporting intervals, according to the company.
Teledyne Flir: Si2a-LD and Si2a-Pro
Electrolux Professional: Generation 7000
Inovonics: Duress Card
T&S Brass: T&S LYNC
AAF International: AstroCel III Aero