... 2TB maximum > 2 channel, D1, On sale 2 channel D1 Digital Video Server with Storage for surveillance system> Video Resolution: D1/Half-D1 ... network. supports 802.11b/g protocol, 2.4GHz, maximum wireless distance can be 100 meters, Supports WEP,WPA,WPA2(support ... or NC (normally close) sense. Alarm Output 4 channel on/off output,120VAC 1A/24VDC 1AAlarm MessageSending alarm message by Email.Input Power ...