UHF transmitters SLV57

UHF long term transmitter for applications where access for changing batteries is difficult. It will transmit conversations to a receiver.With our Automatic Gain Control system it is able to pick up a whisper 40 feet away from the transmitter microphone as clearly as loud speech near it.Exceptional audio quality.Powered by conventional AA alkaline batteries.FeaturesSmall size.Long battery lifetime.437 days in standby mode.Powered by AA alkaline batteries.Voice activation system starts transmission only on voice signal detection to maximize battery lifetime.Voice activation system can be turned on/off.Extremely sensitive built-in microphone.Automatic microphone gain control.Crystal frequency control.Technical dataSize: 57x30x17mm (2.24"x1.18"x0.67") incl. batteriesRange: 500 meters (1700 feet) in open field200 meters (700 feet) in a cityPower requirement: 2 - 3 VBattery type: 2 x AA alkalineBattery lifetime: 525 h (21 days) in transmit mode100500 h (437 days) in standby mode approx. 2 months of working 8 h x 5 days a weekOutput power: 5 mW (0.1 - 100 mW on demand)Frequency: 433 - 434 MHz (300 - 434 MHz on demand)Modulation type: NFMOperating temperature: -20 to +85