Alarm.com ET25 Single Gang Card Reader

Alarm.com Keypad Reader with HF Prox Mobile
Multi-Technology Access Control Reader for Smarter Business Security

The ADC ET25 Keypad Reader with HF Prox Mobile is a sleek, modern access control solution built to complement Alarm.com’s Smarter Access Control platform. Perfect for commercial properties, this reader supports multiple credential technologies, including Proximity (125 kHz), MIFARE DESFire (13.56 MHz), NFC, and Bluetooth®, allowing seamless access using keycards or mobile devices. Fully compliant with OSDP™ and OSDP Secure Channel, it delivers robust security and effortless integration into Alarm.com’s suite of intelligent automation features.

Use your smartphone as a credential, disarm the system by simply badging in, automatically lock doors when arming, and tag access events directly on the video timeline — all from one unified platform.

Key Features

• Supports multiple technologies: Proximity, MIFARE DESFire (EV1 & EV2), NFC, and Bluetooth® Low Energy (BLE)

• Mobile Credential Ready – Unlock doors with your phone, no badge required

• OSDP Auto-Detect with Secure Channel and remote firmware updates

• LEAF credential support for secure, open interoperability

• Legacy credential support (FSK and ASK) for smooth transitions

• Tamper protection via built-in accelerometer

• Tri-state LED (red/green/amber) with audible feedback

• Weather-resistant for indoor and outdoor installations

• Seamlessly integrates with Alarm.com intrusion and video systems

• Scan-to-add for quick card format and serial number recognition

• Manage access and users via the Alarm.com app

• Plug & play setup – no IT/networking expertise required

Technical Specifications

• RF Technologies: 125 kHz, 13.56 MHz, NFC, BLE

• Credential Compatibility: MIFARE DESFire EV1 & EV2, LEAF, FSK, ASK

• Power Input:

  • ET10: 5–16 VDC, 144 mA max

  • ET20: 5–16 VDC, 169 mA max

  • ET25: 5–16 VDC, 193 mA max

• Output: OSDP, Wiegand, tamper detection

• Read Ranges:

  • MIFARE DESFire EV1: up to 1.2″

  • EV2: up to 2.2″

  • 125 kHz: up to 4″

• Operating Temperature: -31°F to 151°F (-35°C to 66°C)

• Humidity: 5–95% RH (non-condensing)

• Dimensions:

  • ET10: 5.1” × 1.7” × 0.7”

  • ET20 & ET25: 5.1” × 3.3” × 0.7”

• Weight:

  • ET10: 7 oz

  • ET20: 10 oz

  • ET25: 11.3 oz

• Certifications: FCC, IC, CE, UL 294, EN 302291, EN 301489, EN 300330, EN 50130-4, IP55, BIS IS 13252

• Country of Origin: USA

Delivering a versatile, secure, and mobile-friendly access control experience, the Alarm.com Keypad Reader with HF Prox Mobile is the ideal solution for businesses that demand convenience without compromising security.