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Alien ALR-3733di Hydra+ RFID Reader

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  • Alien ALR-3733di Hydra+ RFID Reader |  ALR-F3733DI-USA-S-RDR-ONLY / ALR-F3733DI-USA-V-RDR-ONLY
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 Product Description

Alien ALR-3733di Hydra+ RFID Reader

The Alien ALR-3733di Hydra+ RFID Reader is a high-end Hydra reader/antenna combo with 3 PoE + 3 SMA + DC power in + digital IO. The Alien Hydra Reader is a novel UHF Passive RFID Reader solution designed to lower RFID implementation and running costs. Alien Hydra Readers combine a full power 30dBm UHF reader, 8dBic antenna and a patent pending “Hydra” power and data router technology.

Data Sheet  Alien ALR-F3733di Hydra+ RFID Reader


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What's included?

  • Alien ALR-3733di Hydra+ RFID Reader unit

Why buy this reader?

The Alien ALR-3733di Hydra+ RFID Reader has 3 PoE ports allowing them to be daisy chained together in to a "string" of read points by simply connecting the PoE cable from one Hydra reader to the PoE port of the next reader. This enables very simple low cost connectivity with minimal cabling costs as well.


  • 30dBm EPC gen 2 class 1 UHF passive RFID reader.
  • 8dBic slimline antenna.
  • Built-in multiple-PoE switch to network readers together.
  • Designed to work seamlessly with the ALR-F800-X with emissary.
  • Low-Cost reader installation and management.
  • Common applications: warehouse, dock doors, work in Progress, retail, and commissioning station.


Air Interface Protocol:
GS1/EPC global UHF Gen2 (ISO 18000-6C)
Operating Frequency:
FCC (902–928 MHz)
Transmit Power:
30 dBm
Max Receive Sensitivity:
Max Read Distance:
Approximately 9 m (30 ft)
Max Read Rate:
Not published
Data Interface:
RJ-45, Ethernet
Four-3 to 24V inputs; Four-3 to 24V outputs; 24V DC internally supplied power available
Power Source:
Power over Ethernet (PoE) IEEE 802.3at or listed certified power supply
Antenna Ports:
3 RP-SMA female (connects to RP-SMA male)
250 x 250 x 21 mm (9.85 x 9.85 x 0.55 in)
0.75 kg (1.6 lbs)
IP Rating:
IP 53
Operating Temperature:
-20° to +55°C (-4° to +131°F)
Host API:
C, C++, .Net libraries
Demo Software:
Not published

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