Distributed systems become more and more important to our life. Especially in areas like Smart Home and the Internet of Things (IoT) reliable low-power sensor networks become increasingly important. For ensuring this there are a lot of trust metrics. In this paper we compare a model of a distributed low-power sensor network including one root node and the corresponding Simple Trust Metric to the requirements from "Representation of Trust and Reputation in Self-Managed Computing Systems" [1], the Weighted Trust Metric and the Weighted Simple Exponential Smoothing