Dahua Alarm Hub 2 WiFi (Hub only) ARC3800H-W2 (868)

• Supports alarm video verification through integration of the IPC with the hub. 
• Images can be remotely and quickly transferred from the PIR-Cam to the device. 
• Supports wired and AP network configuration methods, which makes it easier to add the hub to apps and to switch to the hub's network. 
• Supports multi-network redundancy for Ethernet and Wi-Fi to ensure the network remains stable and reliable. 
• Supports two-way communication and frequency hopping to make communication with wireless peripherals stable and reliable. 
• Features cloud update. You can also remotely update the device and wireless peripherals on the mobile app. 
• Offers a dual backup system, and uses auto recovery when an update fails. 

Port

• Wireless Zone : 150 wireless peripherals (64 keyfobs, 6 sirens (including 4 intercom sirens), 8 keypads, 4 repeaters, 64 PIR-Cam (including Indoor PIR Cameras, External PIR Cameras, and Triple-tech Detectors), 16 Multi I/O Transmitters), 64 wired alarm inputs expanded by Transmitters, and 8 IPCs
• Area : 32 areas (rooms)
• Network Mode : Ethernet and Wi-Fi
• Network Port : 1 RJ-45, 10 Mbps/100 Mbps Ethernet port.
• Storage Battery : One built-in 4,750 mah rechargeable lithium battery.

Video & Audio

• Video Input : 8-ch IPC, which only supports the upload of alarm videos.
• Audio Output : 1 channel
• Volume Control : Yes
• Voice Broadcast : Local speaker

Function 

• Indicator Light : The indicator indicates the status of alarms, arming and disarming, the network connection and device failure.
• Button : Includes a reset button, voltage button and AP switch button.
• Video Linkage : Yes
• Offline Cache : Stores up to 50 alarm messages.
• Arm and Disarm : App, keyboard, remote control, card, scheduled arming and disarming.
• Remote Update : Cloud update
• Low Battery Detection : Yes
• Tamper : Yes
• User Management : 33 app users (31 general users, 1 admin user and 1 installer) and 32 keypad users
• Logs : Up to 5, 000 entries
• Transmission Protocol : SIA, SoftGuard

Wireless

• Carrier Frequency : 868.0–868.6 MHz
• Transmitter Power (EIRP) : Limit 25 mW
• Communication Mechanism : Two-way
• Communication Distance : Up to 2,000 m (6,561.68 ft) in an open space.
• Encryption Mode : AES128
• Frequency Hopping : Yes

General

• Language : Support 14 languages: Arabic, Czech, Danish, Dutch, English, French, German, Italian, Portuguese (Europe), Russian, Spanish (Latin America), Spanish (Europe), Turkish, Slovak.It is set as English by default.
• Power Supply : 100–240 VAC, 50/60 Hz
• Standby Time : The battery lasts up to 12 hours when it is fully charged and is within the following conditions: It is connected to the Wi-Fi, its ID is connected to the alarm receiving center, the heartbeat interval is 1,800 seconds, and it is connected to 8 peripherals and the cloud.
• Power Consumption : 220 VAC 80 mA(Max) / 220 VAC 40 mA(Standby)
• Operating Temperature : When battery is not charging: –10 °C to +55 °C (+14 °F to +131 °F) / When battery is charging : 0 °C to +45 °C (+32°F to +113 °F)
• Operating Humidity : 10%–90% (RH)
• Product Dimensions : 174.8 mm × 174.8 mm × 38.3 mm (6.88” × 6.88” × 1.51”) (L × W × H)
• Net Weight : 510 g (1.12 lb)
• Gross Weight : 860 g (1.90 lb)
• Installation : Supports wall mount and desktop mount installation.
• Casing Material : PC + ABS
• Certifications : CE / EN 50131-1:2006+A1:2009+A2:2017+A3:2020 / EN 50131-3:2009 / EN 50131-6:2017+A1:2021 / EN 50131-5-3:2017 / EN 50131-10: 2014 / EN 50136-2: 2013+A1:2023 / Security Grade 2 / Environmental Class II / ATS category: SP2/DP2
• Anti-corrosion Level : Basic Protection
• Storage Temperature : –10 °C to +55 °C (+14 °F to +131 °F)
• Storage Humidity : 10%–90% (RH)
• Packaging Dimensions : 254 mm × 211 mm × 61 mm (10.00” × 8.31” × 2.40”) (L × W × H), standalone in the inner box : 524 mm × 508 mm × 442 mm (20.63” × 20.00” × 17.40“) (L × W × H), protective case

Wi-Fi

• Wi-Fi Standard : IEEE 802.11b/g/n
• Wi-Fi Frequency Range : 2400-2483.5 MHz
• Wi-Fi Power Transmission : ≤20 dBm@2400-2483.5 MHz