diff --git a/CHANGELOG.md b/CHANGELOG.md
index b93df6a..e1328fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,20 @@
 # Changelog
-All notable changes to **Series3 Agent** will be documented in this file.
+All notable changes to **Series 3 Watcher** will be documented in this file.
 
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),  
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ---
 
+## [1.3.0] - 2026-03-12
+
+### Changed
+- Renamed program to "series3-watcher" and main script to `series3_watcher.py` — better reflects what it does (watches for activity) rather than implying active data emission.
+- Default `SOURCE_TYPE` updated to `series3_watcher`.
+- Default log filename updated to `series3_watcher.log`.
+
+---
+
 ## [1.2.1] - 2026-03-03
 
 ### Changed
diff --git a/README.md b/README.md
index 69b6a90..d92c78e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Series3 Ingest Agent v1.2
+# Series 3 Watcher v1.3
 
 A lightweight Python script that monitors Instantel **Series 3 (Minimate)** call-in activity on a Blastware server.
 
@@ -30,7 +30,7 @@ Install dependencies with:
 
 Run the agent from the folder containing the script:
 
-`python series3_agent.py`
+`python series3_watcher.py`
 
 The script will:
 
@@ -74,7 +74,7 @@ Git ignores all log files but keeps the folder itself.
 
 This repo follows **Semantic Versioning (SemVer)**.
 
-Current release: **v1.2.1** — renamed to series3 ingest agent.  
+Current release: **v1.3.0** — renamed to series3-watcher.
 See `CHANGELOG.md` for details.
 
 ---
diff --git a/README_DL2.md b/README_DL2.md
index 43418e4..0f97dff 100644
--- a/README_DL2.md
+++ b/README_DL2.md
@@ -1,4 +1,4 @@
-# Series 3 Ingest Agent — v1_0(py38-safe) for DL2
+# Series 3 Watcher — v1_0(py38-safe) for DL2
 
 **Target**: Windows 7 + Python 3.8.10  
 **Baseline**: v5_4 (no logic changes)
diff --git a/config-template.ini b/config-template.ini
index 849a4cd..dbcd591 100644
--- a/config-template.ini
+++ b/config-template.ini
@@ -5,7 +5,7 @@ API_ENABLED = true
 API_URL = 
 API_INTERVAL_SECONDS = 300
 SOURCE_ID = #computer that is running agent.
-SOURCE_TYPE = series3_agent
+SOURCE_TYPE = series3_watcher
 
 # Paths
 SERIES3_PATH = C:\Blastware 10\Event\autocall home
@@ -19,7 +19,7 @@ MISSING_HOURS = 24
 
 # Logging
 ENABLE_LOGGING     = True
-LOG_FILE           = C:\SeismoEmitter\agent_logs\series3_agent.log
+LOG_FILE           = C:\SeismoEmitter\agent_logs\series3_watcher.log
 LOG_RETENTION_DAYS = 30
 
 # Console colors - (Doesn't work on windows 7)
diff --git a/series3_agent.py b/series3_watcher.py
similarity index 98%
rename from series3_agent.py
rename to series3_watcher.py
index 080544e..d5d7000 100644
--- a/series3_agent.py
+++ b/series3_watcher.py
@@ -1,5 +1,5 @@
 """
-Series 3 Ingest Agent — v1.2.1
+Series 3 Watcher — v1.3.0
 
 Environment:
 - Python 3.8 (Windows 7 compatible)
@@ -63,7 +63,7 @@ def load_config(path: str) -> Dict[str, Any]:
         "OK_HOURS": float(get_int("OK_HOURS", 12)),
         "MISSING_HOURS": float(get_int("MISSING_HOURS", 24)),
         "ENABLE_LOGGING": get_bool("ENABLE_LOGGING", True),
-        "LOG_FILE": get_str("LOG_FILE", r"C:\SeismoEmitter\agent_logs\series3_agent.log"),
+        "LOG_FILE": get_str("LOG_FILE", r"C:\SeismoEmitter\agent_logs\series3_watcher.log"),
         "LOG_RETENTION_DAYS": get_int("LOG_RETENTION_DAYS", 30),
         "COLORIZE": get_bool("COLORIZE", False),  # Win7 default off
         "MLG_HEADER_BYTES": max(256, min(get_int("MLG_HEADER_BYTES", 2048), 65536)),
@@ -75,7 +75,7 @@ def load_config(path: str) -> Dict[str, Any]:
         "API_URL": get_str("API_URL", ""),
         "API_INTERVAL_SECONDS": get_int("API_INTERVAL_SECONDS", 300),
         "SOURCE_ID": get_str("SOURCE_ID", gethostname()),
-        "SOURCE_TYPE": get_str("SOURCE_TYPE", "series3_ingest_agent"),
+        "SOURCE_TYPE": get_str("SOURCE_TYPE", "series3_watcher"),
     }
 
 
@@ -239,7 +239,7 @@ def build_sfm_payload(units_dict: Dict[str, Dict[str, Any]], cfg: Dict[str, Any]
 
     payload = {
         "source_id": cfg.get("SOURCE_ID", gethostname()),
-        "source_type": cfg.get("SOURCE_TYPE", "series3_ingest_agent"),
+        "source_type": cfg.get("SOURCE_TYPE", "series3_watcher"),
         "timestamp": now_iso,
         "units": [],
     }