Armis Centrix for OT/IoT Security vs NetPol

Armis Centrix for OT/IoT Security is a paid web platform for monitoring operational technology and discovering OT assets. Its listed monitoring approach is passive, and its discovery capability focuses on identifying OT assets. The platform supports S7Comm, CIP, SNMP, BACnet, Modbus, WMI, HTTP, DNP3, IEC 60870-5-104 and Profinet protocols. It also offers SIEM integration for organizations that connect OT or IoT security information with a security information and event management system. Armis was founded in 2015 and is headquartered in San Francisco, California, USA. Centrix is available through the web, with pricing supplied on request. The published capability set is limited to passive monitoring, OT asset discovery, the named protocol coverage and SIEM integration, so buyers can compare those specifics with the protocols and security workflows in their environments before contacting Armis.

NetPol is self-hosted network monitoring software for OT, SCADA, and industrial networks. It polls managed switches using SNMP v2c and displays CPU, memory, interface status, errors, and uptime. Automatic CDP and LLDP discovery creates a live map of device relationships and link states. Operators can set per-switch alarm thresholds, acknowledge or silence alerts, and review an action history. The software also supports SSH configuration backups, side-by-side diffs, and full restore. Polling classes range from Core at 30–90 seconds to Slow at 300–900 seconds, with jitter intended to protect OT control planes. NetPol can run on a local server, VM, or Raspberry Pi without a cloud dependency. Its maker says switch data stays on the customer’s server and routine monitoring uses no telemetry, cloud sync, or third-party data processors. PDF reports cover switch status, alert summaries, and recommendations. Lite costs A$1,000 a month per node for up to 25 switches; Medium is 1500.00 AUD and Pro is A$2,000 a month per node. A seven-day trial is listed; there is no free plan.