ARD821-W2

Function

Indicator Light

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

Remote Update

Cloud update

Button

1

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 1,200 m (3937.01 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)

Battery Model

CR2032

Battery Life

3 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

EN 50131-1:2006+A1:2009+A2:2017+A3:2020

EN 50131-3:2009

EN 50131-6:2017

EN 50131-5-3:2017

Security Grade 2

Environmental Class II

Casing Material

PC + ABS

Protection

IP54

Technical

Operating Current

28 mA

Test Mode

Yes