Source: Font Last Resort

Miscellaneous Technical

Block from U+2300 to U+23FF. This block was introduced in Unicode version 1.1 (1993). It contains 256 codepoints.

The Wikipedia provides the following information on block Miscellaneous Technical:

Miscellaneous Technical is a Unicode block ranging from U+2300 to U+23FF. It contains various common symbols which are related to and used in the various technical, programming language, and academic professions. For example:
Symbol ⌂ represents a house or a home.

Symbol ⌘ (⌘) is a "place of interest" sign. It may be used to represent the Command key on a Mac keyboard.

Symbol ⌚ (⌚) is a watch.

Symbol ⏏ (⏏) is the "Eject" button symbol found on electronic equipment.

Symbol ⏚ (⏚) is the "Earth Ground" symbol found on electrical or electronic manual, tag and equipment.

Chart at Unicode.org (PDF)
Block at Decode Unicode

Diameter Sign
Electric Arrow
House
Up Arrowhead
Down Arrowhead
Projective
Perspective
Wavy Line
Left Ceiling
Right Ceiling
Left Floor
Right Floor
Bottom Right Crop
Bottom Left Crop
Top Right Crop
Top Left Crop
Reversed Not Sign
Square Lozenge
Arc
Segment
Sector
Telephone Recorder
Position Indicator
Viewdata Square
Place of Interest Sign
Turned Not Sign
Watch
Hourglass
Top Left Corner
Top Right Corner
Bottom Left Corner
Bottom Right Corner
Top Half Integral
Bottom Half Integral
Frown
Smile
Up Arrowhead Between Two Horizontal Bars
Option Key
Erase To The Right
X In A Rectangle Box
Keyboard
Left-Pointing Angle Bracket
Right-Pointing Angle Bracket
Erase To The Left
Benzene Ring
Cylindricity
All Around-Profile
Symmetry
Total Runout
Dimension Origin
Conical Taper
Slope
Counterbore
Countersink
Apl Functional Symbol I-Beam
Apl Functional Symbol Squish Quad
Apl Functional Symbol Quad Equal
Apl Functional Symbol Quad Divide
Apl Functional Symbol Quad Diamond
Apl Functional Symbol Quad Jot
Apl Functional Symbol Quad Circle
Apl Functional Symbol Circle Stile
Apl Functional Symbol Circle Jot
Apl Functional Symbol Slash Bar
Apl Functional Symbol Backslash Bar
Apl Functional Symbol Quad Slash
Apl Functional Symbol Quad Backslash
Apl Functional Symbol Quad Less-Than
Apl Functional Symbol Quad Greater-Than
Apl Functional Symbol Leftwards Vane
Apl Functional Symbol Rightwards Vane
Apl Functional Symbol Quad Leftwards Arrow
Apl Functional Symbol Quad Rightwards Arrow
Apl Functional Symbol Circle Backslash
Apl Functional Symbol Down Tack Underbar
Apl Functional Symbol Delta Stile
Apl Functional Symbol Quad Down Caret
Apl Functional Symbol Quad Delta
Apl Functional Symbol Down Tack Jot
Apl Functional Symbol Upwards Vane
Apl Functional Symbol Quad Upwards Arrow
Apl Functional Symbol Up Tack Overbar
Apl Functional Symbol Del Stile
Apl Functional Symbol Quad Up Caret
Apl Functional Symbol Quad Del
Apl Functional Symbol Up Tack Jot
Apl Functional Symbol Downwards Vane
Apl Functional Symbol Quad Downwards Arrow
Apl Functional Symbol Quote Underbar
Apl Functional Symbol Delta Underbar
Apl Functional Symbol Diamond Underbar
Apl Functional Symbol Jot Underbar
Apl Functional Symbol Circle Underbar
Apl Functional Symbol Up Shoe Jot
Apl Functional Symbol Quote Quad
Apl Functional Symbol Circle Star
Apl Functional Symbol Quad Colon
Apl Functional Symbol Up Tack Diaeresis
Apl Functional Symbol Del Diaeresis
Apl Functional Symbol Star Diaeresis
Apl Functional Symbol Jot Diaeresis
Apl Functional Symbol Circle Diaeresis
Apl Functional Symbol Down Shoe Stile
Apl Functional Symbol Left Shoe Stile
Apl Functional Symbol Tilde Diaeresis
Apl Functional Symbol Greater-Than Diaeresis
Apl Functional Symbol Comma Bar
Apl Functional Symbol Del Tilde
Apl Functional Symbol Zilde
Apl Functional Symbol Stile Tilde
Apl Functional Symbol Semicolon Underbar
Apl Functional Symbol Quad Not Equal
Apl Functional Symbol Quad Question
Apl Functional Symbol Down Caret Tilde
Apl Functional Symbol Up Caret Tilde
Apl Functional Symbol Iota
Apl Functional Symbol Rho
Apl Functional Symbol Omega
Apl Functional Symbol Alpha Underbar
Apl Functional Symbol Epsilon Underbar
Apl Functional Symbol Iota Underbar
Apl Functional Symbol Omega Underbar
Apl Functional Symbol Alpha
Not Check Mark
Right Angle with Downwards Zigzag Arrow
Shouldered Open Box
Bell Symbol
Vertical Line with Middle Dot
Insertion Symbol
Continuous Underline Symbol
Discontinuous Underline Symbol
Emphasis Symbol
Composition Symbol
White Square with Centre Vertical Line
Enter Symbol
Alternative Key Symbol
Helm Symbol
Circled Horizontal Bar with Notch
Circled Triangle Down
Broken Circle with Northwest Arrow
Undo Symbol
Monostable Symbol
Hysteresis Symbol
Open-Circuit-Output H-Type Symbol
Open-Circuit-Output L-Type Symbol
Passive-Pull-Down-Output Symbol
Passive-Pull-Up-Output Symbol
Direct Current Symbol Form Two
Software-Function Symbol
Apl Functional Symbol Quad
Decimal Separator Key Symbol
Previous Page
Next Page
Print Screen Symbol
Clear Screen Symbol
Left Parenthesis Upper Hook
Left Parenthesis Extension
Left Parenthesis Lower Hook
Right Parenthesis Upper Hook
Right Parenthesis Extension
Right Parenthesis Lower Hook
Left Square Bracket Upper Corner
Left Square Bracket Extension
Left Square Bracket Lower Corner
Right Square Bracket Upper Corner
Right Square Bracket Extension
Right Square Bracket Lower Corner
Left Curly Bracket Upper Hook
Left Curly Bracket Middle Piece
Left Curly Bracket Lower Hook
Curly Bracket Extension
Right Curly Bracket Upper Hook
Right Curly Bracket Middle Piece
Right Curly Bracket Lower Hook
Integral Extension
Horizontal Line Extension
Upper Left Or Lower Right Curly Bracket Section
Upper Right Or Lower Left Curly Bracket Section
Summation Top
Summation Bottom
Top Square Bracket
Bottom Square Bracket
Bottom Square Bracket Over Top Square Bracket
Radical Symbol Bottom
Left Vertical Box Line
Right Vertical Box Line
Horizontal Scan Line-1
Horizontal Scan Line-3
Horizontal Scan Line-7
Horizontal Scan Line-9
Dentistry Symbol Light Vertical and Top Right
Dentistry Symbol Light Vertical and Bottom Right
Dentistry Symbol Light Vertical with Circle
Dentistry Symbol Light Down and Horizontal with Circle
Dentistry Symbol Light Up and Horizontal with Circle
Dentistry Symbol Light Vertical with Triangle
Dentistry Symbol Light Down and Horizontal with Triangle
Dentistry Symbol Light Up and Horizontal with Triangle
Dentistry Symbol Light Vertical and Wave
Dentistry Symbol Light Down and Horizontal with Wave
Dentistry Symbol Light Up and Horizontal with Wave
Dentistry Symbol Light Down and Horizontal
Dentistry Symbol Light Up and Horizontal
Dentistry Symbol Light Vertical and Top Left
Dentistry Symbol Light Vertical and Bottom Left
Square Foot
Return Symbol
Eject Symbol
Vertical Line Extension
Metrical Breve
Metrical Long Over Short
Metrical Short Over Long
Metrical Long Over Two Shorts
Metrical Two Shorts Over Long
Metrical Two Shorts Joined
Metrical Triseme
Metrical Tetraseme
Metrical Pentaseme
Earth Ground
Fuse
Top Parenthesis
Bottom Parenthesis
Top Curly Bracket
Bottom Curly Bracket
Top Tortoise Shell Bracket
Bottom Tortoise Shell Bracket
White Trapezium
Benzene Ring with Circle
Straightness
Flatness
AC Current
Electrical Intersection
Decimal Exponent Symbol
Black Right-Pointing Double Triangle
Black Left-Pointing Double Triangle
Black Up-Pointing Double Triangle
Black Down-Pointing Double Triangle
Black Right-Pointing Double Triangle with Vertical Bar
Black Left-Pointing Double Triangle with Vertical Bar
Black Right-Pointing Triangle with Double Vertical Bar
Alarm Clock
Stopwatch
Timer Clock
Hourglass with Flowing Sand
Black Medium Left-Pointing Triangle
Black Medium Right-Pointing Triangle
Black Medium Up-Pointing Triangle
Black Medium Down-Pointing Triangle
Double Vertical Bar
Black Square for Stop
Black Circle for Record
Power Symbol
Power On-Off Symbol
Power On Symbol
Power Sleep Symbol
Observer Eye Symbol