1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index cd0b3d363..951a5e17b 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -272,7 +272,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
         position.setDeviceId(deviceSession.getDeviceId());
         position.set(Position.KEY_TYPE, type);
 
-        if (protocol.equals("ST300") || protocol.equals("ST500") || protocol.equals("ST600")) {
+        if (protocol.startsWith("ST3") || protocol.equals("ST500") || protocol.equals("ST600")) {
             index += 1; // model
         }