diff --git a/README.md b/README.md
index 5750fe60..0871fdbc 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,8 @@ For developers also you can check the complete library documentation [here](http
 | IKEA Vindriktning   | Yes | --- | Select | STABLE |
 | Sensirion SPS30     | Yes | Yes | Select / Auto | STABLE |
 
-NOTE: Panasonic via UART in ESP8266 maybe needs select in detection
+NOTE:  
+Panasonic via UART in ESP8266 maybe needs select in detection.  
 
 ### CO2 sensors
 
@@ -40,7 +41,6 @@ NOTE: Panasonic via UART in ESP8266 maybe needs select in detection
 | CM1106    | Yes | --- | Select | STABLE |
 | SenseAir S8 | Yes | --- | Select | STABLE |
 
-
 ### Environmental sensors
 
 | Sensor model  | Protocol  | Detection mode | Status |  
@@ -53,9 +53,11 @@ NOTE: Panasonic via UART in ESP8266 maybe needs select in detection
 | BME680      | i2c |  Auto | STABLE |
 | DfRobot SEN0469 NH3  | i2c |  Auto | TESTING |
 | DFRobot SEN0466 CO | i2c |  Auto | TESTING |
-| DHTxx       | TwoWire |  Auto | DISABLED |
+| Geiger CAJOE | GPIO | Select | TESTING |
+| DHTxx       | TwoWire |  Select | DISABLED |
 
-NOTE: DHT22 is supported but is not recommended. Please see the documentation.
+NOTE:  
+DHT22 is supported but is not recommended. Please see the documentation.  
 
 ### Platforms supported
 
@@ -282,12 +284,14 @@ For now we are using it only for DHT sensors in PIN 23. For more info please rev
 
 ### PlatformIO (recommended)
 
-We recommended PlatformIO because is more easy than Arduino IDE. For this, please install first [PlatformIO](http://platformio.org/) and its command line tools (Windows, MacOs and Linux), **pio** command, then connect your compatible board to the USB and run the next command:
+We recommended PlatformIO because is more easy than Arduino IDE. For that, please install first [PlatformIO](http://platformio.org/) and its command line tools (Windows, MacOs and Linux), **pio** command, then connect your compatible board to the USB and run the next command:
 
 ```python
 pio run -e esp32 --target upload
 ```
 
+Also you can see some examples than have `platformio.ini` files for your project.
+
 ### Arduino IDE
 
 Only import the `ino` file of the sample and install the libraries listed on `library.json` and this library. Complete list of libraries used [here](https://github.com/kike-canaries/canairio_sensorlib/blob/master/unified-lib-deps.ini)
@@ -361,6 +365,7 @@ Also you can make a donation, be a patreon or buy a device:
 - [x] Multivariable selection (getNextUnit(),getUnitName(),etc)
 - [x] Two I2C channel supported for M5Stack Devices (M5StickC tested)
 - [x] Added CO and NH3 sensors
+- [x] Added Geiger sensor support
 - [ ] Sea level setting for Pressure sensors and others
 - [ ] Support to second UART port
 
diff --git a/library.json b/library.json
index e9215e07..01c24699 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "CanAirIO Air Quality Sensors Library",
-  "version": "0.6.9",
+  "version": "0.7.0",
   "homepage":"https://canair.io",
   "keywords": 
   [ 
@@ -15,6 +15,7 @@
     "hpma115",
     "IKEA",
     "Vindriktning",
+    "Geiger",
     "PMS7003",
     "PMS5003",
     "AM2320",
diff --git a/library.properties b/library.properties
index 4cf29075..f24351b7 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=CanAirIO Air Quality Sensors Library
-version=0.6.9
+version=0.7.0
 author=@hpsaturn, CanAirIO project <info@canair.io>
 maintainer=Antonio Vanegas <hpsaturn@gmail.com>
 url=https://github.com/kike-canaries/canairio_sensorlib
diff --git a/src/Sensors.cpp b/src/Sensors.cpp
index 28ac6ce1..61176583 100644
--- a/src/Sensors.cpp
+++ b/src/Sensors.cpp
@@ -552,9 +552,9 @@ float Sensors::getUnitValue(UNIT unit) {
         case GAS:
             return gas;
         case CPM:
-            return rad->getTics();
+            return getGeigerCPM();
         case RAD:
-            return rad->getUSvh();
+            return getGeigerMicroSievertHour();
         case NH3:
             return nh3;
         case CO:
@@ -1613,9 +1613,9 @@ void Sensors::CO2correctionAlt() {
 }
 
 float Sensors::hpaCalculation(float altitude) {
-    DEBUG("-->[SLIB] Altitude Compensation for CO2 lectures ON\t:", String(altitude).c_str());
+    DEBUG("-->[SLIB] CO2 altitude offset\t:", String(altitude).c_str());
     float hpa = 1012 - 0.118 * altitude + 0.00000473 * altitude * altitude;            // Cuadratic regresion formula obtained PA (hpa) from high above the sea
-    DEBUG("-->[SLIB] Atmospheric pressure calculated in hPa\t:", String(hpa).c_str());
+    DEBUG("-->[SLIB] CO2 pressure (hPa)\t:", String(hpa).c_str());
     return hpa;
 }
 
@@ -1649,13 +1649,13 @@ void Sensors::resetAllVariables() {
     pres = 0.0;
     nh3 = 0;
     co = 0;
-    rad->clear();
+    if (rad !=nullptr) rad->clear();
 }
 
 // #########################################################################
 
 void Sensors::geigerRead(){
-  if(rad->read()){
+  if(rad !=nullptr && rad->read()){
     unitRegister(UNIT::CPM);
     unitRegister(UNIT::RAD);
   }
@@ -1666,16 +1666,22 @@ void Sensors::geigerRead(){
 */
 void Sensors::enableGeigerSensor(int gpio){
   sensorAnnounce(SENSORS::SCAJOE);
+  if (gpio < 0) {
+    if (devmode) Serial.printf("[W][SLIB] undefined Geiger pin\t: %i\r\n", gpio);
+    return;
+  }
   rad = new GEIGER(gpio,devmode);
   sensorRegister(SENSORS::SCAJOE);
 }
 
 uint32_t Sensors::getGeigerCPM(void) {
-  return rad->getTics();
+  if (rad == nullptr) return 0;
+  else return rad->getTics();
 }
 
 float Sensors::getGeigerMicroSievertHour(void) {
-  return rad->getUSvh();
+  if (rad == nullptr) return 0;
+  else return rad->getUSvh();
 }
 
 // #########################################################################
diff --git a/src/Sensors.hpp b/src/Sensors.hpp
index f57500d9..c77ddb02 100644
--- a/src/Sensors.hpp
+++ b/src/Sensors.hpp
@@ -23,8 +23,8 @@
 #include <dht_nonblocking.h> 
 #endif
 
-#define CSL_VERSION "0.6.9"
-#define CSL_REVISION 376
+#define CSL_VERSION "0.7.0"
+#define CSL_REVISION 377
 
 /***************************************************************
 * S E T U P   E S P 3 2   B O A R D S   A N D   F I E L D S
@@ -98,7 +98,7 @@
     X(PRESS, "hPa", "P")       \
     X(ALT, "m", "Alt")         \
     X(GAS, "Ohm", "Gas")       \
-    X(CPM, "CPM", "CPM")       \
+    X(CPM, "CPM", "RAD")       \
     X(RAD, "uSv/h", "RAD") \
     X(NH3, "ppm", "NH3")       \
     X(CO, "ppm", "CO")         \
@@ -203,28 +203,24 @@ class Sensors {
     Adafruit_SCD30 scd30;
     // CM1106 UART
     CM1106_UART *cm1106;
-
+    // CM1106 UART
     CM1106_sensor cm1106sensor;
-
+    // CM1106 UART
     CM1106_ABC abc;
     // Panasonic SN-GCJA5
     SFE_PARTICLE_SENSOR pmGCJA5;
     // SenseAir S8 CO2 sensor
     S8_UART *s8;
-
+    // SenseAir S8 CO2 sensor
     S8_sensor s8sensor;
     // SCD4x sensor
     SensirionI2CScd4x scd4x;
-
     // IKEA Vindriktn sensor
     PM1006 *pm1006;
-
     // DFRobot gravity NH3 sensor addr 0x74
     DFRobot_GAS_I2C dfrCO;
-
     // DFRobot gravity NH3 sensor addr 0x77
     DFRobot_GAS_I2C dfrNH3;
-
     // Geiger CAJOE sensor
     GEIGER *rad;
 
diff --git a/src/drivers/geiger.cpp b/src/drivers/geiger.cpp
index 4194e4d3..455af578 100644
--- a/src/drivers/geiger.cpp
+++ b/src/drivers/geiger.cpp
@@ -31,11 +31,7 @@ void IRAM_ATTR onGeigerTimer() {
 // #########################################################################
 // Initialize Geiger counter
 GEIGER::GEIGER(int gpio, bool debug) {
-#ifdef ESP32
-  if (gpio < 0) {
-    if (debug) Serial.println("[E][SLIB] undefined Geiger pin");
-    return;
-  }
+#ifdef ESP32 
   devmode = debug;
   tics_cnt = 0U;  // tics in 1000ms
   tics_tot = 0U;  // total tics since boot
@@ -57,8 +53,6 @@ GEIGER::GEIGER(int gpio, bool debug) {
   timerAttachInterrupt(geiger_timer, &onGeigerTimer, true);
   timerAlarmWrite(geiger_timer, 1000000, true);  // 1000 ms
   timerAlarmEnable(geiger_timer);
-
-  Serial.println("-->[SLIB] Geiger counter ready");
 #endif
 }
 
@@ -87,19 +81,16 @@ bool GEIGER::read() {
   } else {
     uSvh = 0.0;
   }
-  
-  if (!devmode) return true;
-
-  Serial.print("-->[SLIB] tTOT: ");
-  Serial.println(tics_tot);
-  Serial.print("-->[SLIB] tLEN: ");
-  Serial.print(tics_len);
-  Serial.println(ready ? " (ready)" : " (not ready)");
-  Serial.print("-->[SLIB] tCPM: ");
-  Serial.println(tics_cpm);
-  Serial.print("-->[SLIB] uSvh: ");
-  Serial.println(uSvh);
 
+#ifdef CORE_DEBUG_LEVEL
+  if (CORE_DEBUG_LEVEL >= 3) {
+    Serial.printf("-->[SLIB] tTOT:\t %i\r\n", tics_tot);
+    Serial.printf("-->[SLIB] tLEN:\t %i ", tics_len);
+    Serial.println(ready ? "(ready)" : "(not ready)");
+    Serial.printf("-->[SLIB] tCPM:\t %i\r\n", tics_cpm);
+    Serial.printf("-->[SLIB] uSvh:\t %04.2f\r\n", uSvh);
+  }
+#endif
   return true;
 #else
   return false;