NextUPS Checkmk Plugin

Checkmk SNMP plugin for monitoring NextUPS / Winner Pro / Voltronic UPS systems.

Features

Monitors NextUPS devices via SNMP with ~44 services:

Category	Services	Thresholds
Alarms	UPS Alarm Check	State-based
Battery Status	Battery State	State-based
Battery	Temperature, Voltage, Current, Charge Remaining, Time Remaining, Time On Battery	Configurable
Input	Phase RS/ST/TR Voltage, Frequency, Current	Configurable (voltage, frequency)
Output	Phase RS/ST/TR Voltage, Frequency, Current	Configurable (voltage, frequency)
Output Power	Phase RS/ST/TR Apparent Power, Phase RS/ST/TR True Power	Info only
Output Load	Phase RS/ST/TR Load	Configurable
Bypass	Phase RS/ST/TR Voltage, Current, True Power	Configurable (voltage)

All configurable thresholds can be adjusted through Checkmk's WATO GUI.

SNMP Detection

The plugin detects NextUPS devices where:

• OID .1.3.6.1.4.1.21111.1.1.1.3.0 starts with WPHVR3K0

Installation

MKP Package (recommended)

Download the latest .mkp file from the Releases page and install it:

mkp install oposs_next_ups-<version>.mkp

Manual Installation

Copy the plugin files into your Checkmk site:

local/lib/python3/cmk_addons/plugins/oposs_next_ups/
├── agent_based/
│   └── oposs_next_ups.py
├── graphing/
│   └── next_ups.py
└── rulesets/
    └── next_ups.py

Troubleshooting

Test SNMP connectivity:

snmpget -v2c -c <community> <host> .1.3.6.1.4.1.21111.1.1.1.3.0

Expected output contains WPHVR3K0.

License

MIT - OETIKER+PARTNER AG