ZKTeco SRB Security Relay Box control box cover They are durable

They are durable

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

The WL80 WardenLight 0

ZKTeco SRB Security Relay Box control box cover They are durableZKTeco 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