Dahua Wireless Input Expander

ARM310-W2(868) Wireless input expander > Six types of alarm: intrusion, medical, fire, emergency, gas, and tamper. > NC and NO are available for alarm inputs (NO by default). > Signal strength detection. > Low battery alarm. > Temperature monitoring. > Frequency hopping function and two-way communication technology ensure communication stability. > Cloud update and automatic recovery from update failure. Specifications Accessories Download Document Product Selector Port Indicator Light 1 × green alarm indicator Button 1 × power button Protection Zone 1-channel dry contact input Function Tampering Alarm Yes Remote Upgrade Cloud update Low Battery Alarm Yes Test Mode Yes Search Signal strength detection Wireless Carrier Frequency 868.0 MHz–868.6 MHz Communication Distance Up to 1,200 m (3,937.01 ft) in an open space Communication Mechanism Two-way Frequency Hopping Yes Encryption Mode AES128 General Power Supply Mode CR123A battery Power Consumption Max. 125 mW Operating Temperature –10 °C to +55 °C (+14 °F to +131 °F) (indoor) Operating Humidity 10%–90% (RH) Dimensions 100.2mm × 20.8mm × 20.3mm (3.94" × 0.82" ×0.80") Package Dimensions 135.0 mm × 98.5 mm × 27.8mm (5.31" × 3.88" × 1.09") Installation Mode Bracket mount Net Weight 70 g (0.15 lb) Gross Weight 115 g (0.25 lb) Certification CE Battery Life 4 years (The external input type is NO) 2 years (The external input type is NC or Pulse) Casing Material PC + ABS Temperature Measurement Range –15 °C to +65 °C (+5 °F to +149 °F) (indoor) <p data-gtm-vis-has-fired1