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The DS-TRI400-4 is a Bluetooth card reader from Hikvision.
Here are some of its key features:
Recognition Distance: Between 3 meters and 30 meters.
Transmission Frequency: 38 kHz.
Receiving Frequency: 433 MHz.
Interface: Supports Wiegand 26/34/42 and RS-232 or RS-485.
Power Supply: 9 to 18 VDC.
Consumption: 200 mW.
Operating Temperature: -40 °C to +80 °C (-40 °F to 176 °F).
Operating Humidity: 10% to 85%, non-condensing.
Dimensions: Card reader: 250 x 195 x 60 mm (9.84 x 3.74 x 2.36 inches); Pole stand: Ø 60 x 1200 mm (2.36 x 47.24 inches).
This card reader is known for its long-range recognition and robust performance in various environmental conditions.