diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 28f0166..e010821 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,7 +14,3 @@ repos:
     rev: 22.3.0
     hooks:
       - id: black
-  - repo: https://github.com/pycqa/isort
-    rev: 5.10.1
-    hooks:
-      - id: isort
diff --git a/README.md b/README.md
index 75cca6b..34e4440 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,22 @@
 
 Nagios check for [T-Rex miner](https://github.com/trexminer/T-Rex).
 
+# Security
+
+T-Rex API must be opened in a secured way:
+* `--api-read-only`: accessible only in read-only, no modification
+* `--api-bind-http 127.0.0.1:4067`: (default) accessible only to local connections
+
+If the check is executed **remotely**, you should add a **firewall rule** to allow only the host running the check to
+access the T-Rex API port.
+
+**HTTPS** should be used:
+* `--api-https`
+* `--api-webserver-cert`
+* `--api-webserver-pkey`
+
+See full [list of options](https://github.com/trexminer/T-Rex#usage).
+
 # Installation
 
 Using pip:
@@ -21,7 +37,15 @@ sudo apt-get install python3-nagiosplugin python3-requests
 # Usage
 
 ```
-./check_trex --help
+./check_trex.py --help
+```
+
+# Examples
+
+Nagios NRPE:
+
+```
+command[check_trex]=/opt/check_trex/check_trex.py --hashrate-warning 60000000 --hashrate-critical 50000000 --uptime-critical 300 --uptime-warning 600
 ```
 
 # Contributing
diff --git a/check_trex.py b/check_trex.py
index de8bb5f..2a5bbea 100755
--- a/check_trex.py
+++ b/check_trex.py
@@ -5,8 +5,15 @@ import logging
 import sys
 
 import requests
-from nagiosplugin import (Check, Context, Metric, Performance, Resource,
-                          ScalarContext, Summary)
+from nagiosplugin import (
+    Check,
+    Context,
+    Metric,
+    Performance,
+    Resource,
+    ScalarContext,
+    Summary,
+)
 from nagiosplugin.state import Critical, Ok, Unknown, Warn
 
 logger = logging.getLogger(__name__)
@@ -128,7 +135,7 @@ def setup_logging(args):
 
 
 def show_version():
-    print("1.0.0")
+    print("1.0.3")
 
 
 class BelowThresholdContext(Context):
@@ -195,29 +202,29 @@ class Trex(Resource):
 
         if "hashrate" in data:
             hashrate = data["hashrate"]
-            logger.debug(f"Hashrate is {hashrate}")
+            logger.info(f"Hashrate is {hashrate}")
             metrics.append(Metric("hashrate", hashrate, context="hashrate"))
 
         if "success" in data:
             success = bool(data["success"])
             if success:
-                logger.debug("T-Rex is successfully started")
+                logger.info("T-Rex is successfully started")
             else:
-                logger.debug("T-Rex is not successfully started")
+                logger.info("T-Rex is not successfully started")
             metrics.append(Metric("success", success, context="success"))
 
         if "paused" in data:
             paused = bool(data["paused"])
             if paused:
-                logger.debug("T-Rex is paused")
+                logger.info("T-Rex is paused")
             else:
-                logger.debug("T-Rex is not paused")
+                logger.info("T-Rex is not paused")
             metrics.append(Metric("paused", paused, context="paused"))
 
         if "uptime" in data:
             uptime = data["uptime"]
             seconds = "seconds" if uptime > 1 else "second"
-            logger.debug(f"Uptime is {uptime} {seconds}")
+            logger.info(f"Uptime is {uptime} {seconds}")
             metrics.append(Metric("uptime", uptime, context="uptime"))
 
         for gpu in data.get("gpus"):
@@ -226,19 +233,19 @@ class Trex(Resource):
 
             if "temperature" in gpu:
                 temperature = gpu["temperature"]
-                logger.debug(f"Temperature of {name} ({id}) is {temperature}C")
+                logger.info(f"GPU {id} ({name}): temperature is {temperature}C")
                 metrics.append(
-                    Metric("temperature", temperature, context="temperature")
+                    Metric(f"temperature_{id}", temperature, context="temperature")
                 )
 
             if "memory_temperature" in gpu:
-                temperature = gpu["memory_temperature"]
-                logger.debug(
-                    f"Memory temperature of {name} ({id}) is {memory_temperature}C"
+                memory_temperature = gpu["memory_temperature"]
+                logger.info(
+                    f"GPU {id} ({name}): memory temperature is {memory_temperature}C"
                 )
                 metrics.append(
                     Metric(
-                        "memory_temperature",
+                        f"memory_temperature_{id}",
                         memory_temperature,
                         context="memory_temperature",
                     )
@@ -289,6 +296,11 @@ def main():
                 warning=args.temperature_warning,
                 critical=args.temperature_critical,
             ),
+            ScalarContext(
+                "memory_temperature",
+                warning=args.memory_temperature_warning,
+                critical=args.memory_temperature_critical,
+            ),
             TrexSummary(),
         )
         check.main()