The Impinj Threshold (LP) is a $100 passive floor mat element. Review the constraints of passive mat deployments against active wide-area ceiling nets.
Technical Specifications
Hardware Overview
The Impinj Threshold (LP) is an industrial-grade RFID device. It operates within the 902-928 MHz (FCC) range and supports the N/A (Passive Antenna Element) standard, making it widely deployed across enterprise logistics applications.
With an IP rating of IP54 (Estimated), it offers protection against specific environmental conditions typical in warehouses or retail backrooms. The reader utilizes N/A (Passive) for continuous performance, while its stated maximum read rate peaks at N/A (Passive).
Connectivity and Network Integration
In modern deployments, network integration is the most significant hurdle. This model offers SMA Female options for transferring data back to central systems.
However, a major bottleneck with legacy Impinj hardware is the heavy reliance on proprietary SDKs (like LLRP) or expensive third-party IoT middleware to process raw tag data into meaningful business intelligence.
The Nextwaves Alternative
If your engineering team is evaluating the Impinj Threshold (LP), the Nextwaves NR155 presents a vastly superior cloud-native architecture. Legacy systems inherently drive high capital expenditure through vendor lock-in and proprietary software ecosystems.
Nextwaves completely eliminates this barrier by providing a standard MQTT REST API directly on the device. Your software developers can integrate tag reading directly into your custom ERP or WMS backend in days instead of months, completely bypassing recurring middleware licensing fees.
Frequently Asked Questions
What is the Threshold (LP)?
The Impinj Threshold (LP) is a low-profile, long passive strip antenna designed to lie flat under floor mats or across doorways. Broadcasting specifically across 902-928 MHz (FCC) bandwidths, it sweeps items passing physically across its horizontal axis.
How much does this setup cost initially?
Costing around $100 per strip, real-world deployment requires wiring several Thresholds in parallel back to an active Impinj R700 or Speedway reader box, alongside all associated RF multiplexers and coaxial leads.
Why should I choose Nextwaves instead?
Spreading multiple passive floor strips forces complex coaxial line balancing. Nextwaves utilizes an overhead active array strategy, replacing complex floor sensors with a single intelligent wide-beam ceiling node dropping direct to Ethernet.
Is the hardware durable enough for warehouses?
The highly specialized 914 x 150 x 15 mm form factor weighs only 0.68 kg. Intended to slide into chamfered floor tracks or under heavy matting, its exact IP rating is unspecified but demands protection from direct floor liquids.
Does it support multiple network types?
There is no network gateway onboard the strip. All logical routing occurs exclusively by securing its SMA port via coaxial cable to an external active interrogator machine.
Can my team install this internally?
Floor mounting requires careful routing of the SMA coax under the threshold plate. IT members must ensure passing foot traffic does not crush the shielded RF line connecting back to the control closet.
How does the remote management work?
Regulated entirely by external power logic, its metric reads N/A (Passive). The capacity to register hundreds of passing runners or assets depends strictly on the Impinj reader running the array.
Do I need proprietary software to run it?
Software developers do not interface with the plate. The Impinj ItemSense middleware or native LLRP stream connecting to the central Speedway box handles all actual EPC aggregations.
What warranty comes with the reader?
As a strictly passive internal patch with protective coating, Impinj covers standard factory defects. Its lifespan is directly correlated to how well it is physically shielded against heavy footway or pallet compressions.
Are the antennas sold separately?
It generates a highly unique 'planar' field across the 902-928 MHz (FCC) block. Emitting approximately 5.0 dBi linearly, it is fiercely effective for assets specifically passing directly over the strip threshold line.