Ubiquiti UA-G3-FLEX-B vs Speco Technologies AP620HA: Specification Comparison
Both the Ubiquiti UA-G3-FLEX-B and the Speco Technologies AP620HA are wall-mounted access control readers combining a proximity/contactless credential reader with an integrated numeric keypad, designed for physical access control at doors and entry points. This comparison evaluates their credential technology and read capabilities, environmental protection and operating range, and integration architecture — the three axes most relevant to installers choosing between them for a commercial or light-industrial access control deployment.
In This Guide
- Which reader supports the broadest and most modern credential types?
- Which unit is better rated for harsh outdoor or extreme-temperature installations?
- How does each reader integrate with access control infrastructure, and what are the power requirements?
- Which should you choose: the UA-G3-FLEX-B or the AP620HA?
- Side-by-Side Specs
- FAQ
Which reader supports the broadest and most modern credential types?
The UA-G3-FLEX-B supports NFC, Bluetooth 4.1, Mifare, Apple Touch Pass, and PIN keypad entry via a 12-button capacitive keypad. This multi-modal credential stack enables smartphone-based unlock on both iOS and Android through NFC, as well as Apple's Touch Pass ecosystem — positioning it for modern, mobile-first deployments where physical cards are being phased out. The Wiegand output interface is not specified for this model; connectivity is via wired Ethernet (10/100 RJ45) to a UniFi controller.
The AP620HA operates on 125 kHz RFID using HID and AWID protocols, outputting over Wiegand — the dominant legacy integration bus for third-party access control panels. It includes an integrated numeric keypad with LED feedback and an audible tone beeper. Bluetooth, NFC, and mobile-credential support are not specified. The 125 kHz proximity technology is widely deployed but is an older generation compared to 13.56 MHz NFC/Mifare. Read range is specified at 5 inches (125 kHz RFID). The UA-G3-FLEX-B does not publish a read range figure in the provided specs.
Which unit is better rated for harsh outdoor or extreme-temperature installations?
The AP620HA carries an IP67 ingress-protection rating — meaning it is rated dust-tight and withstands temporary immersion — and is specified for an operating temperature range of -40°F to 149°F (-40°C to 65°C). FCC, ICC, CE, C-Tick, and ETL listings are noted. The IP67 rating is a quantified, internationally recognized environmental seal; no equivalent IP rating is provided for the UA-G3-FLEX-B.
The UA-G3-FLEX-B is described as 'weatherproof (outdoor-rated)' and carries an operating temperature range of -30°C to 60°C, with certifications including CE, FCC, IC, UL 294, and CAN/ULC-60839-11-1. UL 294 is the North American standard specifically for access control system units, which the AP620HA does not list. However, the UA-G3-FLEX-B's lower cold-weather floor (-30°C vs. -40°C for the AP620HA) and the absence of a published IP rating mean the AP620HA has a quantifiable edge in extreme-cold and wet environments as specified.
How does each reader integrate with access control infrastructure, and what are the power requirements?
The UA-G3-FLEX-B is a native Ethernet device powered by PoE 802.3af (44–57V DC, 5W maximum), managed through the UniFi Access application. This architecture requires a UniFi Access controller (hardware or software) and eliminates the need for a separate power supply or Wiegand panel run — a single Cat5e/6 cable handles both data and power. It is explicitly a closed-ecosystem device; compatibility with third-party access control panels via Wiegand is not specified.
The AP620HA outputs via Wiegand protocol, making it natively compatible with the vast installed base of third-party access control panels (Lenel, Software House, Honeywell, DSC, and similar). Power supply requirements are not specified in the provided data. The Wiegand interface requires a separate panel and power wiring run but provides panel-agnostic flexibility. ONVIF is listed as 'Yes' in the specs, though ONVIF is a video surveillance interoperability standard and its applicability to a standalone reader is not explained by the provided data.
Which should you choose: the UA-G3-FLEX-B or the AP620HA?
Our take: The UA-G3-FLEX-B is the stronger choice when deploying a modern, cloud-managed access system within the Ubiquiti UniFi ecosystem, while the AP620HA is the stronger choice for integration into existing third-party Wiegand-based access control panels. Key spec deltas: the UA-G3-FLEX-B adds Bluetooth 4.1, Apple Touch Pass, and NFC mobile credentials that the AP620HA does not specify, and it is UL 294-listed — the dedicated North American access control unit standard absent from AP620HA's certifications. The AP620HA counters with a published IP67 seal and a wider cold-temperature floor of -40°C vs. -30°C for the UA-G3-FLEX-B, plus a specified 5-inch read range versus no published figure for the Ubiquiti unit. Installers replacing or extending a legacy HID/Wiegand panel infrastructure should select the AP620HA; those deploying a greenfield UniFi Access network with PoE infrastructure and mobile-credential requirements should select the UA-G3-FLEX-B.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Ubiquiti UA-G3-FLEX-B | Speco Technologies AP620HA |
|---|---|---|
| Form Factor | Card Reader / Wall-mount | Mullion / Wall-mount |
| Credential Technology | NFC, Bluetooth 4.1, Mifare, Apple Touch Pass, PIN | 125 kHz RFID (HID & AWID compatible), PIN |
| Keypad | 12-button capacitive | Numeric keypad with LED feedback |
| Read Range | — | 5 inches (125 kHz RFID) |
| Output / Connectivity | Wired Ethernet (10/100 RJ45), UniFi controller | Wiegand protocol |
| Power | PoE 802.3af, 44–57V DC, 5W | Not specified |
| Operating Temp | -30°C to 60°C | -40°C to 65°C (-40°F to 149°F) |
| Ingress Protection | Weatherproof (outdoor-rated); IP rating not specified | IP67 |
| Environment Rating | Outdoor | Outdoor |
| Certifications | CE, FCC, IC, UL 294, CAN/ULC-60839-11-1 | FCC, ICC, CE, C-Tick, ETL-listed |
| NDAA Compliant | Yes | — |
| Enclosure Material | Polycarbonate, glass, aluminium alloy | Not specified (white housing; black snap-on cover included) |
| Weight | 0.400 lb | 4 oz (113 g / ~0.25 lb) |
| Audio Feedback | — | Tone beeper included |
| Mobile Credential Support | iOS and Android (NFC); Apple Touch Pass | Not specified |
| Warranty | Manufacturer warranty (duration not specified) | 2-year |
Frequently Asked Questions
Which should you choose: the UA-G3-FLEX-B or the AP620HA?
The UA-G3-FLEX-B is the stronger choice when deploying a modern, cloud-managed access system within the Ubiquiti UniFi ecosystem, while the AP620HA is the stronger choice for integration into existing third-party Wiegand-based access control panels. Key spec deltas: the UA-G3-FLEX-B adds Bluetooth 4.1, Apple Touch Pass, and NFC mobile credentials that the AP620HA does not specify, and it is UL 294-listed — the dedicated North American access control unit standard absent from AP620HA's certifications. The AP620HA counters with a published IP67 seal and a wider cold-temperature floor of -40°C vs. -30°C for the UA-G3-FLEX-B, plus a specified 5-inch read range versus no published figure for the Ubiquiti unit. Installers replacing or extending a legacy HID/Wiegand panel infrastructure should select the AP620HA; those deploying a greenfield UniFi Access network with PoE infrastructure and mobile-credential requirements should select the UA-G3-FLEX-B.
Can the UA-G3-FLEX-B or AP620HA work with my existing HID card stock?
The AP620HA is specified as HID and AWID 125 kHz compatible and outputs over Wiegand, so it will read standard 125 kHz HID proximity cards directly. The UA-G3-FLEX-B supports NFC and Mifare (13.56 MHz) credentials; 125 kHz HID proximity card compatibility is not specified in the provided data. If your existing cards are 125 kHz HID proximity, the AP620HA is the confirmed-compatible choice based on available specs.
Which reader is better suited for outdoor installations in freezing climates?
The AP620HA is rated to -40°F (-40°C) and carries an IP67 ingress-protection rating (dust-tight, temporary immersion). The UA-G3-FLEX-B is rated to -30°C and described as weatherproof but does not publish an IP rating in the provided specs. For verified performance in extreme cold or high-moisture environments, the AP620HA's lower temperature floor and quantified IP67 seal give it a specified advantage.
Do I need a separate power supply for either reader?
The UA-G3-FLEX-B is powered by PoE 802.3af (5W) over its single RJ45 port — no separate power run is required if a PoE switch or injector is available. The AP620HA's power supply type and voltage requirements are not specified in the provided data, so installers should consult the full datasheet or manufacturer to confirm power wiring needs before rough-in.
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