What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

define value in custom sensor for ok and down



i have a sensor that gives just two value : 0 , 1

i define limits in this sensor and set upper error limit = 1 i want when my sensor value = 0 my sensor in prtg is ok and last message is ok but when go to 1 my sensor goes down and down sensor trigger but otherwise that i define value 1 in upper error limit in sensor , when my value is 1 sensor still green and last message is ok ? please help me

error-messages ok-message value

Created on Nov 20, 2018 11:43:18 AM

2 Replies

Accepted Answer



The limit would be 1 - meaning the error is reached at 2.

Just set the limit to 0 and it should work as expected.

The sensor of this channel will enter a Warning or Down status when limits are undercut or overrun https://www.paessler.com/manuals/prtg/sensor_channels_settings


Florian Rossmark


Created on Nov 20, 2018 3:20:43 PM



thanks its work

Created on Nov 21, 2018 8:33:10 AM

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.