Home > Diagnostics > Circuit Testers > Heavy Duty Circuit Tester for 18, 24 and 36 Volt Systems 21300

Heavy Duty Circuit Tester for 18, 24 and 36 Volt Systems 21300

Pan Up

Pan Left

Pan Right

Pan Down

Zoom In

Zoom Out

Product Description

Features and Benefits:

Checks AC or D wiring up to 36 volts
Use to check series-parallel switches and solenoids on tractor-trailer starter systems
An absolute must for the trucking, farm, heavy equipment and trailer industries
Supplied with 48" ground wire

You May Also Like

Computer Safe Circuit Tester 24550

Computer Safe Circuit Tester 24550

Reg. Price: $17.33

Sale Price: $9.41

"Handy Hooker" Circuit Tester 25600

"Handy Hooker" Circuit Tester 25600

Reg. Price: $17.92

Sale Price: $10.45

AC/DC Circuit Tester up to 28Volts 26250

AC/DC Circuit Tester up to 28Volts 26250

Reg. Price: $8.40

Sale Price: $4.47

Shop By Category

Abrasives
- -
  Bristle Discs
- -
  Cut Off Wheels
- -
  Flap Wheels
- -
  Grinding Burs
- -
  Grinding Discs
- -
  Grinding Points
- -
  Grinding Wheels
- -
  Sand Paper
- -
  Sanding Belts
- -
  Sanding Blocks
- -
  Sanding Pens
- -
  Surface Prep Disc Holders
- -
  Surface Prep Discs
- -
  Surface Prep Pads
- -
  Wire Brushes
Air Conditioning
- -
  Accumulators
- -
  Actuator
- -
  Adapter
- -
  Air Cylinder
- -
  Booster Pump
- -
  Brackets
- -
  Circuit Breakers
- -
  Clamps & Clips
- -
  Compressor Clutches
- -
  Compressors
- -
  Condensers
- -
  Control Cable
- -
  Drier
- -
  Electrical
- -
  Evaporator
- -
  Expansion Valves
- -
  Fans
- -
  Filters
- -
  Fittings
- -
  Heater Parts
- -
  Hose
- -
  Idler
- -
  Knobs
- -
  Louver
- -
  Manifold
- -
  Motors
- -
  O-rings/Gaskets
- -
  Orfice tubes
- -
  Radiators
- -
  Relay
- -
  Resistor
- -
  Solenoid
- -
  Switches
- -
  Tensioner
- -
  Thermostat
- -
  Tools & Accessories
- -
  Valve
Air Tools
- -
  Air Die Grinder Kits
- -
  Air Die Grinders
- -
  Air Drills
- -
  Air Engravers
- -
  Air Fittings
- -
  Air Flanges
- -
  Air Grease Guns
- -
  Air Grinders
- -
  Air Hammers
- -
  Air Impact Wrenches
- -
  Air Needle Scalers
- -
  Air Nibblers
- -
  Air Pin Stripe Removal Kits
- -
  Air Ratchets
- -
  Air Riveters
- -
  Air Sanders Polishers & Buffers
- -
  Air Saws
- -
  Air Scraper Kits
- -
  Air Screwdrivers
- -
  Air Shears
- -
  Air Tire Buffers
- -
  Air Tool Covers
- -
  Air Tool Oil
- -
  Air Tool Repair Parts
- -
  Air Windshield Knives
- -
  Chisel Retainers
- -
  Cut Off Tools
- -
  Door Skinners
- -
  Lubrication
- -
  Pinstriping_Tape
- -
  Air_Compressors
Battery Charging
Belts
Cutting Tools
- -
  Deburring Tools
- -
  Drill Bit Sets
- -
  Drill Bit Sharpeners
- -
  Drill Bits
- -
  Extractor Sets
- -
  Extractors
- -
  Hole Cutters Arbors
- -
  Hole Cutters Pilots
- -
  Hole Saws & Hole Cutters
- -
  Individual Dies
- -
  Individual Taps
- -
  Knives Saws Blades
- -
  Nut Crackers
- -
  Reamers
- -
  Stud Remover Sets
- -
  Stud Removers
- -
  Tap and Die Sets
- -
  Thread Repair Chaser & Inserts
- -
  Threading Tools
- -
  Tool Sharpeners
- -
  Tube & Pipe Cutters
- -
  Misc_Accessories
Electric Tools
- -
  Chuck Keys
- -
  Combo Kits
- -
  Die Grinders
- -
  Drill Chuck
- -
  Drills
- -
  Electric Ratchets
- -
  Engravers
- -
  Grinders
- -
  Impact Wrenches
- -
  Rotary Tools
- -
  Sanders and Polishers
- -
  Saws
- -
  Screwdrivers
- -
  Shears
Diagnostics
- -
  Amp Meters and Probes
- -
  Borescope
- -
  Breakout Boxes
- -
  Circuit Testers
- -
  Code Readers
- -
  Informational Reference
- -
  Listening Tools
- -
  Multimeters
- -
  Power Injectors
- -
  Scan Tool Upgrades
- -
  Scan Tools
- -
  Smoke Machines
- -
  Special Use Testers
- -
  Tachometers
- -
  Test Leads and Adapters
- -
  Timing Lights
Emission Products
- -
  DOC Kits
- -
  DPF Kits
- -
  Misc
Exhaust Products
Filters
Hand Tools
- -
  Bit Holders
- -
  Bit Sets
- -
  Bits
- -
  Crimpers Cutters and Strippers
- -
  Drive Handles
- -
  Extension Sets
- -
  Extensions
- -
  File Sets
- -
  Files
- -
  Hammer Handles
- -
  Hammer Tips
- -
  Hammers
- -
  Impact Driver Sets
- -
  Key Sets
- -
  Keys
- -
  Master Sets
- -
  Nut Driver Sets
- -
  Nut Drivers
- -
  Picks
- -
  Plier Sets
- -
  Pliers
- -
  Pry Bar Sets
- -
  Pry Bars
- -
  Punch & Chisel Sets
- -
  Punches & Chisels
- -
  Ratchet Set
- -
  Ratchets
- -
  Scraper Sets
- -
  Scrapers
- -
  Screwdriver
- -
  Screwdriver Sets
- -
  Socket Adapter Sets
- -
  Socket Adapters
- -
  Socket Sets
- -
  Sockets
- -
  Universal Joints
- -
  Wrench Sets
- -
  Wrenches
- -
  Drill_Bit_Sets
- -
  Displays
Hella Lighting
- -
  WARNING LAMPS
- -
  MULTIFUNCTION TAIL LAMPS
- -
  TURN / REPEATER / MARKER LAMPS
- -
  TAIL LAMPS
- -
  INTERIOR / COURTESY LAMPS
- -
  LICENSE PLATE LAMPS
- -
  BATTERY MASTER SWITCHES
- -
  SWITCHES
- -
  CONTROL UNITS
- -
  FLASHERS
- -
  ELECTRICAL INSTALLATION
- -
  REFLEX REFLECTORS
- -
  HEADLAMPS
- -
  HORNS - DISC
- -
  HORNS - COMPRESSED AIR
- -
  REVERSE LAMPS
- -
  STOP LAMPS & CHMSL'S
- -
  RELAYS
- -
  BUZZERS
- -
  MARINE LAMPS - NAV / ANCH / INTERIOR
- -
  AUXILIARY LAMP KITS
- -
  SPECIAL FUNCTION SWITCHES
- -
  MOUNTING SUPPORTS
- -
  AUXILIARY LAMPS
- -
  ELECTRIC APPLIANCES
- -
  REAR FOG LAMPS
- -
  OPTICAL WARNING LAMPS / SYSTEMS
- -
  WORK LAMPS
- -
  HORNS - TRUMPET
- -
  XENON BALLAST UNITS
- -
  BULBS
- -
  BACK-UP ALARMS
- -
  REGULATORS
- -
  OTHER SPECIALIZED ITEMS
- -
  BULB HOLDERS
- -
  OPERATING PARTS
- -
  WIRING, LEADS & CONNECTORS
- -
  STANDARD PARTS
- -
  RUBBER COMPONENTS
- -
  COVERS / BLINDS / FASTENERS
- -
  SENSORS
- -
  OTHER ELECTRIC OR PNEUMATIC PARTS A/C
- -
  COOLER- / CONDENSER BLOWERS
- -
  CONDENSER
- -
  LIQUIDS / OILS
- -
  EXPANSION VALVES / ORIFICE TUBES
- -
  FILTER
- -
  HEATER CORE
- -
  EVAPORATOR
- -
  VALVES & TUBULAR CONNECTIONS
- -
  RADIATOR
- -
  INTERCOOLER
- -
  LENSES
- -
  MARINE DECK LAMPS
- -
  BEHR THERMOT -TRONIK
- -
  SPECIAL / EXTERNAL PARTS
- -
  TIMERS
- -
  DIODE BLOCKS
- -
  OPTILUX
- -
  PIERBURG
- -
  PUMPS
Lifting & Hydraulics
- -
  Bottle Jacks
- -
  Clutch and Fly Wheel
- -
  Crane Accessories
- -
  Cranes
- -
  End Lifts
- -
  Engine Stands
- -
  Jack Stands
- -
  Lifts
- -
  Pallet Jacks
- -
  Porta Powers
- -
  Presses
- -
  Rams
- -
  Service Jacks
- -
  Transmission Jacks
- -
  Truck Ramps
- -
  Under Hoist Stand
- -
  Wheel Dollys
Lighting
- -
  Batteries
- -
  Bulbs
- -
  Flood Lights
- -
  Light Reels
- -
  Parts & Accessories
- -
  Work Lights
Measurement Tools
- -
  Angle Finders
- -
  Base
- -
  Brake Measurement
- -
  Calipers
- -
  Cylinder Bore Gauges
- -
  Dial Indicators
- -
  Feeler Gauges
- -
  Levels
- -
  Micrometers
- -
  Rulers
- -
  Specialty Measurement
- -
  Squares
- -
  Standards
- -
  Tape Measures
- -
  Torque Wrenches
Motorcycle
Oil & Lubricants
- -
  2 - Cycle Oil
- -
  Car Care
- -
  Engine Oil Additives
- -
  Fuel Treatments
- -
  Gear Oil
- -
  Grease
- -
  Heavy Duty Truck Oil
- -
  Hydraulics
- -
  Motor Oil
- -
  Motorcycle
- -
  Outdoor Line
- -
  Problem Solvers
- -
  Transmission
Shop Safety
- -
  Body Protection
- -
  Body Warmers
- -
  Burn Protection Heat Sleeves
- -
  Eye Wash Stations
- -
  First Aid Kits
- -
  Gloves
- -
  Hearing Protection
- -
  Respirators
- -
  Shoes Boots
- -
  Vision Parts & Accessories
- -
  Vision Protection
Shop Tools
- -
  Air Compressors
- -
  Air Dryers
- -
  Air Filters
- -
  Alignment Systems
- -
  Bench Grinders
- -
  Blow Guns
- -
  Brake Lathe Accessories
- -
  Brake Lathe Bits
- -
  Brake Lathes
- -
  Brooms Brushes & Squeegees
- -
  Cargo Lifting
- -
  Chain Pullers
- -
  Chemicals
- -
  Cleaners
- -
  Consumables
- -
  Cranes & Accessories
- -
  Creeper Accessories
- -
  Creeper Seats
- -
  Creepers
- -
  Degreasers
- -
  Drain Pans
- -
  Drains
- -
  Drill Presses
- -
  Drum Dollys
- -
  Epoxy Putty
- -
  Extension Cords
- -
  Filter Crushers
- -
  Floor Surface Cleaner
- -
  Fluid Containers
- -
  Fluid Evacuators
- -
  Fuel Delivery
- -
  Funnels
- -
  Gas Caddys
- -
  Glue Guns
- -
  Grease Guns
- -
  Hand Trucks
- -
  Headlight Equipment
- -
  Heat Guns
- -
  Hose Accessories
- -
  Hoses
- -
  Inverters
- -
  Load_Binders
- -
  Lubricant
- -
  Magnetic Heat Induction
- -
  Magnets Pick Up Tools
- -
  Metering Dispensing
- -
  Mirrors
- -
  Mobile Office
- -
  Odor Elimination Chemicals
- -
  Odor Elimination Systems
- -
  Parts & Accessories
- -
  Parts Washers
- -
  Parts Washers & Accessories
- -
  Platforms
- -
  Power Pulls
- -
  Pressure Washers
- -
  Pullers
- -
  Reels
- -
  Regulators & Lubricators
- -
  Sand & Bead Blasters
- -
  Shop
- -
  Shop Air Fans Heaters Coolers
- -
  Shop Seating
- -
  Slide Hammers
- -
  Slings
- -
  Steps
- -
  Stretch Cords
- -
  Tie Downs & Straps
- -
  Tips & Nozzles
- -
  Tire Changers
- -
  Towels Wipes Cloths Tissue
- -
  Tubing & Pipe Benders
- -
  Vacuum Accessories
- -
  Vacuums
- -
  Vises
- -
  Vises & Accessories
- -
  Wheel Balancers
- -
  Winches
- -
  Wire Ties
- -
  Work_Stand
- -
  Climate_Control
- -
  Battery_Chargers
Tool Storage
- -
  Benches & Tables
- -
  Bit Holders
- -
  Cabinets
- -
  Carts
- -
  Casters & Wheels
- -
  Chests
- -
  Combination Sets
- -
  Drawer Liners & Mats
- -
  Hand Tool Boxes
- -
  Lockers & Side Boxes
- -
  Misc Accessories
- -
  Socket Holders
- -
  Tool Bags
- -
  Tool Box Trays & Panels
- -
  Wrench Racks Holders
- -
  Body_Mechanical_And_Trim
- -
  Chest
Vehicle Lighting
Specialty Tools
- -
  Audio Video & NAV Systems
- -
  Battery
- -
  Body Electrical
- -
  Body Mechanical & Trim
- -
  Brake
- -
  Climate Control
- -
  Clutch
- -
  Cooling System
- -
  Drive Belts
- -
  Driveshaft & Axle
- -
  Emmission Controls
- -
  Engine Electrical
- -
  Engine Mechanical
- -
  Exhaust
- -
  Fuel Injection
- -
  Fuel System
- -
  Steering
- -
  Suspension
- -
  Test Category
- -
  Tire & Wheel
- -
  Transmission
- -
  Vehicle Specialty
- -
  Trim_and_Molding_Tools
- -
  Body_Mechanical
- -
  Door_Tools
Warning Products
- -
  Accessories
- -
  Alarms
- -
  Beacons
- -
  Camera Systems
- -
  Directional Lights
- -
  Lightbars
- -
  Minibars
- -
  Safety Directors
- -
  Utility Bars
- -
  Worklamps
Welding
- -
  Electrodes and Rods
- -
  Plasma Cutters
- -
  Soldering Flux
- -
  Soldering Guns
- -
  Torches & Accessories
- -
  Torches Handheld
- -
  Welders
- -
  Welding Helmets and Lenses
- -
  Welding Wire