Bosch wireless universal transmitter RFUN, is a single arm loop input with integrated magnetic reed switch contact, comes with lithium battery. Model: RFUN RADION wireless security solution from Bosch provides the range, scalability and exceptional battery life required to ensure reliable performance and superior quality. Advanced diagnostics and multiple device enrollment options make installation and maintenance simple and cost effective. With a complete line of peripherals, RADION provides the flexibility for virtually any application requirement. Features : Single alarm loop input can be configured for use with virtually any Normally Open or Normally Closed external detector Integrated magnetic reed switch contact Supervised for low-battery, cover-tamper, and removal from mounting surface tamper conditions Operational up to 5 years using a single user replaceable CR123A lithium battery RADION universal is magnetic and dry contact wireless detector and transmitter which is appropriate for monitoring doors, windows, or other dry contact devices. The transmitter has a cover and wall tamper switch, and RF supervision. Additional capabilities also include the ability to accept a supervised dry contact input from an external device. The external loop input may be configured for use with either Normally Open or Normally Closed dry contact devices. Transmitter Specifications Dimensions: Transmitter 33.02 x 82.55 x 19.5 mm (1.30 in x 3.25 in x 0.76) Dimensions: Magnetic 18.5 mm x 24.5 mm x 12.5 mm (0.72 in x 0.97 in x 0.49 in) Weight: 0,094 kg (0.207 lb) Power/Voltage: One CR123A Lithium battery, 3 VDC Battery life: Up to 5 years Upon power-up, factory test mode lasts for approximately 10 sec. Temperature: Functional range: -10゚C to +55゚(+14゚F to +131゚F) UL only: 0゚C to +49゚C (+32゚F to+120゚F) EN 50130-5 Class II only: -10゚C to 55゚C (+14゚F to +131゚F IP30/IK04 Environment Complies with EN50130-5 Class II Relative Humidity: Up to 93% non-condensing Cover and Wall Tamper Switch1: Transmits a tamper switch signal when the detector is removed from its base, or the unit is pulled away from the wall. Maximum distance between sensor and magnet: