diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/A.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/A.sub
new file mode 100644
index 00000000..7232ca44
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/A.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 00 54 55
+TE: 355
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/B.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/B.sub
new file mode 100644
index 00000000..c0d7fd29
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/B.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 40 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/C.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/C.sub
new file mode 100644
index 00000000..495a1518
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/C.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 10 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/D.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/D.sub
new file mode 100644
index 00000000..9b6a4007
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/D.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 50 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2262_C16390.pdf b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2262_C16390.pdf
new file mode 100644
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Binary files /dev/null and b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2262_C16390.pdf differ
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2272_s.pdf b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2272_s.pdf
new file mode 100644
index 00000000..193917ab
Binary files /dev/null and b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/PT2272_s.pdf differ
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/E.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/E.sub
new file mode 100644
index 00000000..3c916240
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/E.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 04 54 55
+TE: 355
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/F.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/F.sub
new file mode 100644
index 00000000..5926d9f8
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/F.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 44 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/G.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/G.sub
new file mode 100644
index 00000000..38135c48
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/G.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 14 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/H.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/H.sub
new file mode 100644
index 00000000..7b6236ea
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/H.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 54 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/I.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/I.sub
new file mode 100644
index 00000000..422f1696
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/I.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 01 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/J.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/J.sub
new file mode 100644
index 00000000..e4b99b15
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/J.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 41 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/K.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/K.sub
new file mode 100644
index 00000000..b0f27daf
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/K.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 11 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/L.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/L.sub
new file mode 100644
index 00000000..db0d33b5
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/L.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 51 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/M.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/M.sub
new file mode 100644
index 00000000..2992551f
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/M.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 05 54 55
+TE: 355
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/N.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/N.sub
new file mode 100644
index 00000000..e04ec20a
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/N.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 45 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/O.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/O.sub
new file mode 100644
index 00000000..56b43580
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/O.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 15 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/P.sub b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/P.sub
new file mode 100644
index 00000000..5c661bc7
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/P.sub
@@ -0,0 +1,8 @@
+Filetype: Flipper SubGhz Key File
+Version: 1
+Frequency: 433920000
+Preset: FuriHalSubGhzPresetOok650Async
+Protocol: Princeton
+Bit: 24
+Key: 00 00 00 00 00 55 54 55
+TE: 356
diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_RX_PCB_IC_detail.jpg b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_RX_PCB_IC_detail.jpg
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diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_RX_back.jpg b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_RX_back.jpg
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diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_PCB_IC_detail.jpg b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_PCB_IC_detail.jpg
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diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_PCB_back.jpg b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_PCB_back.jpg
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diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_front.jpg b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/MLR-7100_TX_front.jpg
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diff --git a/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/ReadMe.md b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/ReadMe.md
new file mode 100644
index 00000000..2ee8a06d
--- /dev/null
+++ b/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/ReadMe.md
@@ -0,0 +1,5 @@
+# intertechno MLR-7100 Wireless Doorbell (thanks GriZo!)
+
+[More general info](https://shop.griederbauteile.ch/product_info.php?products_id=7697&language=en)
+[Pictures](https://github.com/UberGuidoZ/Flipper/tree/main/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Pictures/)
+[Datasheets](https://github.com/UberGuidoZ/Flipper/tree/main/Sub-GHz/Doorbells/intertechno_MLR-7100_Doorbell/Datasheets/)
\ No newline at end of file