DHI-ARD822-W2(868) Dahua Беспроводная тревожная кнопка

Function

Indicator Light

1 for multiple statuses (pairing, communication, and operation)

Remote Update

Cloud update

Button

2

Signal Strength

Yes

Low Battery Detection

Yes

Battery Level Display

Displays battery level on app

Wireless

Carrier Frequency

868.0 MHz–868.6 MHz

Communication Distance

Up to 1,400 m (4,593.18 ft) in an open space

Communication Mechanism

Two–way

Encryption Mode

AES128

Frequency Hopping

Yes

General

Operating Temperature

–10 °C to +55 °C (+14 °F to +131 °F) (indoor)

Operating Humidity

10%–90% (RH)

Power Supply

1 × CR2032

Battery Life

5 years (if used twice a week)

Product Dimensions

55 mm × 36 mm × 14.2 mm (2.17" × 1.42" × 0.56") (L × W × H)

Packaging Dimensions

95 mm × 59.5 mm × 30.5 mm (3.74" × 2.34" × 1.20") (L × W × H)

Installation

Wall mount; portable

Net Weight

18 g (0.04 lb)

Gross Weight

48 g (0.11 lb)

Certifications

CE

Casing Material

PC + ABS

Protection

IP54

Technical

Operating Current

28 mA

Test Mode

Yes