diff --git a/client/src/cmdlft55xx.c b/client/src/cmdlft55xx.c
index 7a457fc21..affdafd96 100644
--- a/client/src/cmdlft55xx.c
+++ b/client/src/cmdlft55xx.c
@@ -1286,6 +1286,7 @@ bool testKnownConfigBlock(uint32_t block0) {
         case T55X7_KERI_CONFIG_BLOCK:
         case T55X7_NEXWATCH_CONFIG_BLOCK:
         case T55X7_JABLOTRON_CONFIG_BLOCK:
+        case T55X7_PYRONIX_CONFIG_BLOCK:
             return true;
     }
     return false;
@@ -2008,6 +2009,9 @@ static void printT5x7KnownBlock0(uint32_t b0) {
         case T55X7_NEXWATCH_CONFIG_BLOCK:
             snprintf(s + strlen(s), sizeof(s) - strlen(s), "NexWatch, Quadrakey ");
             break;
+        case T55X7_PYRONIX_CONFIG_BLOCK:
+            snprintf(s + strlen(s), sizeof(s) - strlen(s), "Pyronix ");
+            break;
         default:
             break;
     }
diff --git a/client/src/cmdlft55xx.h b/client/src/cmdlft55xx.h
index 6dbab378c..c3b8c31df 100644
--- a/client/src/cmdlft55xx.h
+++ b/client/src/cmdlft55xx.h
@@ -42,6 +42,7 @@
 #define T55X7_PRESCO_CONFIG_BLOCK       0x00088088  // ASK, data rate 32, Manchester, 4 data blocks, STT
 #define T55X7_SECURAKEY_CONFIG_BLOCK    0x000C8060  // ASK, Manchester, data rate 40, 3 data blocks
 #define T55X7_UNK_CONFIG_BLOCK          0x000880FA  // ASK, Manchester, data rate 32, 7 data blocks STT, Inverse ...
+#define T55X7_PYRONIX_CONFIG_BLOCK      0x00088C40  // ASK, Manchester, data rate 32, 2 data blocks
 
 // FDXB requires data inversion and BiPhase 57 is simply BiPhase 50 inverted, so we can either do it using the modulation scheme or the inversion flag
 // we've done both below to prove that it works either way, and the modulation value for BiPhase 50 in the Atmel data sheet of binary "10001" (17) is a typo,