ZKTeco SRB Security Relay Box control box cover The DMR HD-Series callbox can

The DMR HD-Series callbox can be programmed to operate as a DMR digital voice two-way radio

Unload a shipment

this device can scan ferrous metals as well as most other forms of them including aluminum alloy

LiftMaster Q079

Its aluminum alloy construction ensures durability and longevity in various environmental conditions

ZKTeco SRB Security Relay Box control box cover The DMR HD-Series callbox canZKTeco SRB Security Relay Box The Security Relay Box (SRB) is a value added and cost effective single door controller to enhance access control in a simple and secure way. Designed to provide an added layer of security when connected to ZKteco standalone readers. SRB (not the reader) controls the door lock, thus preventing unauthorized parties from bypassing the door lock when tampering with the reader. Manufacturer's Warranty Period 1 year limited