What cards can the Dahua DHI-ASR2100H read?

The DHI-ASR2100H is designed to read 13.56MHz MIFARE Classic 1K IC cards. It should not be assumed to support every 13.56MHz credential type, mobile credential or encrypted smart-card format. Confirm the exact credential technology used across the site before purchasing, particularly when the reader will be added to an existing access-control system.

Does this reader support RS-485, Wiegand and OSDP?

Yes. The DHI-ASR2100H provides one RS-485 interface, one Wiegand output and support for the OSDP protocol. Dahua specifies Wiegand 34 as standard, with Wiegand 26 available through customisation. The selected connection method must be supported and correctly configured on the compatible access controller.

Can the DHI-ASR2100H unlock a door by itself?

The DHI-ASR2100H is an access reader rather than a complete standalone door controller. It reads the presented card and communicates with a compatible access-control controller, which handles credential decisions and the connected lock hardware. A suitable controller, power supply, lock, exit device and other installation components may therefore be required.

How far away can a card be read?

Dahua specifies a card-reading distance of 0 to 8cm and a response time of approximately 0.1 seconds for the DHI-ASR2100H. Actual reading performance can vary with the credential, presentation angle, nearby metal, cabling, controller configuration and installation environment. Present the card close and parallel to the reader face for consistent operation.

Is the DHI-ASR2100H suitable for outdoor installation?

Yes. The reader is IP66 rated, specified for outdoor operation and designed for temperatures from –30 °C to +70 °C with relative humidity up to 95%. IP66 does not remove the need for correct cable sealing, suitable fixings and a properly prepared mounting surface. Avoid locations where water can enter through unsealed cable routes or the supporting structure.

Does the access reader provide audible and visual confirmation?

Yes. The DHI-ASR2100H uses an integrated buzzer and indicator light to provide prompts during card presentation and system operation. The reader also supports a tamper alarm, allowing a compatible access-control system to respond when the unit is disturbed or removed, subject to correct installation and controller configuration.

What power supply does the reader require?

The DHI-ASR2100H requires 12V DC at 0.5A. Dahua lists power consumption of no more than 0.48W in standby and no more than 1.2W while working. The power source and cable size should be selected for the total cable distance, voltage drop, controller design and other devices on the access-control circuit.

What should I confirm before ordering this Dahua access reader?

Confirm that the site uses compatible 13.56MHz MIFARE Classic 1K cards, that the access controller supports RS-485, OSDP or the required Wiegand format, and that 12V DC power is available. Also check the surface-mount location, cable path and outdoor sealing requirements. Security Wholesalers can assist with matching the reader to a suitable Dahua access-control system.

Dahua DHI-ASR2100H 13.56MHz IC Card Access Reader with RS-485, Wiegand and IP66

$54.00

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The Dahua DHI-ASR2100H delivers a 13.56MHz IC card access reader designed for residential, commercial and industrial entry-control systems requiring reliable credential verification. Featuring RS-485 and Wiegand communication, it supports flexible integration with compatible access controllers and security platforms.

It also includes an IP66-rated housing, making this reader available at Security Wholesalers practical for indoor and outdoor installations exposed to dust and weather. Its compact access-reader format suits doors, gates, reception areas and controlled entry points where secure card-based access, durable construction and straightforward system integration are important.

Key Features

13.56MHz IC Card Reading: Supports compatible high-frequency IC card credentials for access verification.
RS-485 Communication: Enables integration with compatible access control systems using RS-485 connection.
Wiegand Interface: Provides an additional communication option for supported controllers and entry systems.
IP66 Outdoor Rating: Helps protect the reader against dust and weather exposure in suitable installations.
Access Control Integration: Suits doors, gates and controlled entry points across residential and commercial sites.
Compact Reader Design: Provides a neat credential-reading solution for professional security installations.

Additional Information

Dahua ASR2100H Datasheet

$54.00 inc GST +3 Year Warranty & Support

Description

Product SKU: DHI-ASR2100H

Product Overview

The Dahua DHI-ASR2100H is a compact 13.56MHz IC card reader designed for controlled doors, staff entries and other access points connected to a compatible access-control controller. It reads MIFARE Classic 1K cards from up to 8cm and provides a specified response time of 0.1 seconds for convenient credential presentation. RS-485, OSDP and Wiegand communication options support flexible system integration, with Wiegand 34 provided as standard and Wiegand 26 available through customisation. An integrated buzzer and indicator light provide user prompts, while tamper detection, watchdog recovery and protected connection ports support reliable operation. The IP66-rated PC and ABS enclosure is suitable for indoor or outdoor surface mounting when the cabling and mounting surface are prepared and sealed correctly.

Key Capabilities

13.56MHz IC Card Reading

Reads MIFARE Classic 1K credentials at 13.56MHz, providing a straightforward card-based entry interface for compatible Dahua access-control systems.

Flexible Controller Communication

Supports RS-485, OSDP and Wiegand output. Wiegand 34 is the standard format, with Wiegand 26 available through customisation when required.

Fast Credential Response

A specified response time of 0.1 seconds and a reading distance of up to 8cm support convenient card presentation at doors, gates and controlled internal areas.

Audible and Visual Prompts

An integrated buzzer and indicator light provide immediate user feedback during credential presentation and access-control operation.

Tamper and Reliability Protection

Tamper alarm support helps identify interference with the reader, while the watchdog and protected connection ports support dependable long-term operation.

IP66 Outdoor Housing

The compact PC and ABS enclosure is IP66 rated and specified for outdoor operation from –30 °C to +70 °C when installed and sealed correctly.

Best For

Staff Entry Doors: Provides fast card presentation for compatible office, retail, warehouse and commercial access-control systems.
Outdoor Access Points: IP66 protection and a –30 °C to +70 °C operating range suit exposed positions when installed correctly.
Dahua Controller Integration: RS-485, OSDP and Wiegand options give installers flexibility when matching the reader to a compatible controller.
Compact Surface-Mount Installations: The narrow 127 × 46mm front profile suits door frames, wall surfaces and other space-conscious access points.
MIFARE Classic 1K Sites: Designed for facilities already using or planning to use supported 13.56MHz MIFARE Classic 1K cards.

Why Choose the DHI-ASR2100H

The DHI-ASR2100H combines straightforward card access with the communication options needed for a professionally designed controller-based system. Its support for RS-485, OSDP and Wiegand makes it more adaptable than a reader limited to one interface, while the 8cm reading distance and 0.1-second response time provide practical day-to-day operation. The buzzer and indicator light give immediate feedback to users, and the tamper alarm helps the wider system identify interference with the reader. Its IP66 enclosure, broad temperature range and low power consumption make it suitable for a wide range of indoor and outdoor doors. Supplied by Security Wholesalers, this model is a strong choice when the card technology, controller interface and surface-mount format have been confirmed before installation.

Buyer Decision Tips

Credential Tip: Confirm that the site uses 13.56MHz MIFARE Classic 1K cards. The same operating frequency does not guarantee compatibility with every IC card, secure credential or mobile credential.

Controller Tip: Select RS-485, OSDP or Wiegand according to the compatible controller and project design. Wiegand 34 is standard; Wiegand 26 should only be specified where the customised version is confirmed.

Installation Tip: IP66 protects the reader enclosure, but outdoor reliability also depends on sealed cable routes, suitable fixings, correct power delivery and a stable mounting surface.

Key Features & Technical Specifications

Model	DHI-ASR2100H
Product Type	Access-control card reader.
Credential Technology	13.56MHz MIFARE Classic 1K IC card.
Unlock Method	Card.
Reading Distance	0 to 8cm.
Response Time	0.1 seconds.
RS-485	1 interface.
Wiegand	1-channel output; Wiegand 34 standard, with Wiegand 26 available through customisation.
OSDP Protocol	Supported.
User Prompts	Integrated buzzer and indicator light.
Tamper Detection	Tamper alarm supported.
Reliability Features	Watchdog recovery and overcurrent or overvoltage protection on connection ports.
Casing Material	PC and ABS.
Protection Rating	IP66.
Operating Environment	Outdoor.
Installation Method	Surface mount.
Power Supply	12V DC, 0.5A.
Power Consumption	Up to 0.48W standby and up to 1.2W working.
Operating Temperature	–30 °C to +70 °C.
Operating Humidity	Up to 95% relative humidity.
Product Dimensions	127 × 46 × 20mm.
Packaging Dimensions	139 × 73 × 48mm.
Gross Weight	104g.

Ideal Use Cases

Office Entry Doors

Provides a compact card-reading point for staff entrances connected to a compatible access controller and electric locking system.

Retail and Back-of-House Areas

Suitable for stockrooms, staff-only corridors, offices and service areas where card access is preferred over shared keys.

Warehouses and Industrial Sites

The IP66 rating and broad operating temperature range support sheltered or exposed access points when cabling and mounting are sealed correctly.

Apartment and Shared Facilities

Can be used at compatible common doors, equipment rooms and resident facilities that operate with supported MIFARE Classic 1K credentials.

Education and Healthcare Sites

Supports controlled access to staff rooms, records areas, plant rooms and other restricted spaces within a professionally designed system.

System Expansion and Replacement

Useful when adding a reader to a compatible Dahua controller or replacing a reader where the credential technology and communication format have been confirmed.

Choosing the Right Model

Choose the DHI-ASR2100H if: You require a compact IP66 reader for MIFARE Classic 1K cards with RS-485, OSDP or Wiegand communication.
Choose a keypad reader if: Users must enter a PIN as well as, or instead of, presenting a card.
Choose a biometric reader if: Fingerprint or facial verification is required as part of the access workflow.
Choose another credential reader if: The site uses DESFire, low-frequency proximity cards, Bluetooth, NFC mobile credentials or another technology not confirmed for this model.
Choose a standalone access terminal if: Local user management and lock control are needed without a separate compatible access controller.

FAQs

What cards can the Dahua DHI-ASR2100H read?
The DHI-ASR2100H is designed to read 13.56MHz MIFARE Classic 1K IC cards. It should not be assumed to support every 13.56MHz credential type, mobile credential or encrypted smart-card format. Confirm the exact credential technology used across the site before purchasing, particularly when the reader will be added to an existing access-control system.
Does this reader support RS-485, Wiegand and OSDP?
Yes. The DHI-ASR2100H provides one RS-485 interface, one Wiegand output and support for the OSDP protocol. Dahua specifies Wiegand 34 as standard, with Wiegand 26 available through customisation. The selected connection method must be supported and correctly configured on the compatible access controller.
Can the DHI-ASR2100H unlock a door by itself?
The DHI-ASR2100H is an access reader rather than a complete standalone door controller. It reads the presented card and communicates with a compatible access-control controller, which handles credential decisions and the connected lock hardware. A suitable controller, power supply, lock, exit device and other installation components may therefore be required.
How far away can a card be read?
Dahua specifies a card-reading distance of 0 to 8cm and a response time of approximately 0.1 seconds for the DHI-ASR2100H. Actual reading performance can vary with the credential, presentation angle, nearby metal, cabling, controller configuration and installation environment. Present the card close and parallel to the reader face for consistent operation.
Is the DHI-ASR2100H suitable for outdoor installation?
Yes. The reader is IP66 rated, specified for outdoor operation and designed for temperatures from –30 °C to +70 °C with relative humidity up to 95%. IP66 does not remove the need for correct cable sealing, suitable fixings and a properly prepared mounting surface. Avoid locations where water can enter through unsealed cable routes or the supporting structure.
Does the access reader provide audible and visual confirmation?
Yes. The DHI-ASR2100H uses an integrated buzzer and indicator light to provide prompts during card presentation and system operation. The reader also supports a tamper alarm, allowing a compatible access-control system to respond when the unit is disturbed or removed, subject to correct installation and controller configuration.
What power supply does the reader require?
The DHI-ASR2100H requires 12V DC at 0.5A. Dahua lists power consumption of no more than 0.48W in standby and no more than 1.2W while working. The power source and cable size should be selected for the total cable distance, voltage drop, controller design and other devices on the access-control circuit.
What should I confirm before ordering this Dahua access reader?
Confirm that the site uses compatible 13.56MHz MIFARE Classic 1K cards, that the access controller supports RS-485, OSDP or the required Wiegand format, and that 12V DC power is available. Also check the surface-mount location, cable path and outdoor sealing requirements. Security Wholesalers can assist with matching the reader to a suitable Dahua access-control system.

Additional Information

Dahua ASR2100H Datasheet

SKU: DHI-ASR2100H Categories: Dahua, Dahua Access Control