diff --git a/htdocs/lib/settings/GainInput.js b/htdocs/lib/settings/GainInput.js
new file mode 100644
index 0000000..31552bc
--- /dev/null
+++ b/htdocs/lib/settings/GainInput.js
@@ -0,0 +1,22 @@
+$.fn.gainInput = function() {
+    this.each(function() {
+        var $container = $(this);
+
+        var update = function(value){
+            $container.find('.option').hide();
+            $container.find('.option.' + value).show();
+        }
+
+        var $select = $container.find('select');
+        $select.on('change', function(e) {
+            var value = $(e.target).val()
+            update(value);
+            if (value == 'auto') {
+                $input.val('auto');
+            } else {
+                $input
+            }
+        });
+        update($select.val());
+    });
+}
\ No newline at end of file
diff --git a/htdocs/settings.js b/htdocs/settings.js
index 1a76dbe..4a9903b 100644
--- a/htdocs/settings.js
+++ b/htdocs/settings.js
@@ -1,8 +1,8 @@
 $(function(){
     $('.map-input').mapInput();
-    $('.sdrdevice').sdrdevice();
     $('.imageupload').imageUpload();
     $('.bookmarks').bookmarktable();
     $('.wsjt-decoding-depths').wsjtDecodingDepthsInput();
     $('#waterfall_scheme').waterfallDropdown();
+    $('#rf_gain').gainInput();
 });
\ No newline at end of file
diff --git a/owrx/controllers/assets.py b/owrx/controllers/assets.py
index 51343aa..f090fb6 100644
--- a/owrx/controllers/assets.py
+++ b/owrx/controllers/assets.py
@@ -150,6 +150,7 @@ class CompiledAssetsController(GzipMixin, ModificationAwareController):
             "lib/settings/BookmarkTable.js",
             "lib/settings/WsjtDecodingDepthsInput.js",
             "lib/settings/WaterfallDropdown.js",
+            "lib/settings/GainInput.js",
             "settings.js",
         ],
     }
diff --git a/owrx/form/device.py b/owrx/form/device.py
new file mode 100644
index 0000000..1da6791
--- /dev/null
+++ b/owrx/form/device.py
@@ -0,0 +1,33 @@
+from owrx.form import Input
+
+
+class GainInput(Input):
+    def render_input(self, value):
+        auto_mode = value is None or value == "auto"
+
+        return """
+            <div id="{id}">
+                <select class="{classes}" id="{id}-select" name="{id}-select">
+                    <option value="auto" {auto_selected}>Enable hardware AGC</option>
+                    <option value="manual" {manual_selected}>Specify manual gain</option>
+                </select>
+                <div class="option manual" style="display: none;">
+                    <input type="number" id="{id}-manual" name="{id}-manual" value="{value}" class="{classes}" placeholder="Manual device gain" value="{value}" step="any">
+                </div>
+            </div>
+        """.format(
+            id=self.id,
+            classes=self.input_classes(),
+            value=value,
+            label=self.label,
+            auto_selected="selected" if auto_mode else "",
+            manual_selected="" if auto_mode else "selected",
+        )
+
+    def parse(self, data):
+        select_id = "{id}-select".format(id=self.id)
+        if select_id in data:
+            input_id = "{id}-manual".format(id=self.id)
+            if data[select_id][0] == "manual" and input_id in data:
+                return {self.id: float(data[input_id][0])}
+        return {self.id: None}
diff --git a/owrx/source/__init__.py b/owrx/source/__init__.py
index 0d33fb3..6324235 100644
--- a/owrx/source/__init__.py
+++ b/owrx/source/__init__.py
@@ -10,8 +10,9 @@ from abc import ABC, abstractmethod
 from owrx.command import CommandMapper
 from owrx.socket import getAvailablePort
 from owrx.property import PropertyStack, PropertyLayer
-from owrx.form import Input, TextInput, NumberInput, CheckboxInput, FloatInput
-from owrx.form.converter import IntConverter, OptionalConverter, FloatConverter
+from owrx.form import Input, TextInput, NumberInput, CheckboxInput
+from owrx.form.converter import IntConverter, OptionalConverter
+from owrx.form.device import GainInput
 from owrx.controllers.settings import Section
 from typing import List
 
@@ -394,7 +395,7 @@ class SdrDeviceDescription(object):
                 "Run background services on this device",
                 converter=OptionalConverter(defaultFormValue=True),
             ),
-            FloatInput("rf_gain", "Device gain", converter=OptionalConverter(FloatConverter())),
+            GainInput("rf_gain", "Device gain"),
         ]
 
     def mergeInputs(self, *args):