diff --git a/src/detect/ScanI2CTwoWire.cpp b/src/detect/ScanI2CTwoWire.cpp
index da2a57fee..2f0b6d881 100644
--- a/src/detect/ScanI2CTwoWire.cpp
+++ b/src/detect/ScanI2CTwoWire.cpp
@@ -378,7 +378,7 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
             case SHT31_4x_ADDR:     // same as OPT3001_ADDR_ALT
             case SHT31_4x_ADDR_ALT: // same as OPT3001_ADDR
                 registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x89), 2);
-                if (registerValue == 0x11a2 || registerValue == 0x11da || registerValue == 0x11f3 || registerValue == 0xe9c ||
+                if (registerValue == 0x109f || registerValue == 0x11a2 || registerValue == 0x11da || registerValue == 0x11f3 || registerValue == 0xe9c ||
                     registerValue == 0xc8d) {
                     type = SHT4X;
                     logFoundDevice("SHT4X", (uint8_t)addr.address);