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Old Will Knott Scales - Real People, Real Service Since 1990
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Triple Beam Balances And Mechanical Scales
What's On This Page?

This is where you'll find a triple beam balance, or any other kind of mechanical scale. Some of us old fogies can't seem to live without our good old analog scales and triple beam scales. Whether you're looking for a beam scale, or a mechanical bathroom scale, you'll see every mechanical balance we carry on this page.

This Week's Featured Mechanical Scales
My Weigh 3BEAM
Triple Beam Balance
Weston Sportsman's 14-0401-W
90# Bow Scale

Products (Total Items: 132)
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Detecto 2381- Kilograms Only - Height Rod and Wheels Included
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Detecto 2381- Kilograms Only - Height Rod and Wheels Included
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Old Will's Price: $261.90

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The Detecto 2381 Eye Level Physician Scale. This beam balance has a 180 kilogram capacity with 100 gram readability and easy to use weighing beams. Durable construction for a long life and an easy to clean design with removable platform cover.
Detecto 338 - Pounds and Kilograms - Wheels Included
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Detecto 338 - Pounds and Kilograms - Wheels Included
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Old Will's Price: $261.90

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The Detecto 338 Eye Level Physician's Scale. This beam balance has a 400 lb / 175 kg capacity with 4 oz / 100 g resolution and easy to read dual beams. Durable construction and wheels make this scale great for hospitals and health centers.
Seca 700 Kilograms Only Model - Height Rod Included
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Seca 700 Kilograms Only Model - Height Rod Included
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Old Will's Price: $264.15

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The Seca 7001021998 Mechanical Physician's Scale has a 220 kilogram capacity and includes the seca 220 height rod that attaches to the scale. This column scale also has integrated wheels for transportation, a larger weighing area and easy to read beams
Seca 700 Pound & Kilogram Model - Height Rod Included
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Seca 700 Pound & Kilogram Model - Height Rod Included
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Old Will's Price: $264.15

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The Seca 7001321998 Mechanical Physician's Scale has a 160 kilogram / 400 pound capacity and includes the seca 220 height rod for getting both weight and height measurements. This scale also has transport wheels and an easy to read display.
Seca 700 Pounds Only Model - Height Rod Included
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Seca 700 Pounds Only Model - Height Rod Included
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Old Will's Price: $264.15

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The Seca 7001121998 Mechanical Physician's Scale has a 500 pound capacity and includes the seca 220 height rod that attaches to the scale. This column scale also has integrated wheels for transportation, a larger weighing area and easy to read beams.
Detecto 349 - Pounds and Kilograms - Handpost and Height Rod Included
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Detecto 349 - Pounds and Kilograms - Handpost and Height Rod Included
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Old Will's Price: $275.40

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The Detecto 349 Eye Level Physician's Scale. This beam balance has a 400 lb/175 kg capacity with 4 oz/100 g resolution and height rod. Durable construction and sturdy handpost make this scale great for hospitals, nursing homes and health centers.
Detecto 449 - Pounds Only - Handpost and Height Rod Included
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Detecto 449 - Pounds Only - Handpost and Height Rod Included
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Old Will's Price: $275.40

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The Detecto 449 Eye Level Physician's Scale has a 400 pound capacity with 4 ounce resolution and height rod for getting weight and height together. Durable construction and powder coated frame make for a long lasting, easy to use scale.
Detecto 2491 - Kilograms Only - Handpost and Height Rod Included
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Detecto 2491 - Kilograms Only - Handpost and Height Rod Included
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Old Will's Price: $275.40

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The Detecto 2491 Eye Level Physician's Scale has a 180 kilogram capacity with 100 gram resolution and height rod for getting weight and height together. Durable construction and powder coated frame make for a long lasting, easy to use scale.
Adam MDW 160M - Pounds and Kilograms - Height Rod Included
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Adam MDW 160M - Pounds and Kilograms - Height Rod Included
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Old Will's Price: $285.00

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The Adam MDW 160M Beam Balance With Height Rod. This medical scale has a 350 pound capacity with 4 ounce resolution and kilogram weighing. The included height rod measures up to 7 feet with 0.2 inch divisions. Wheels included for easy transportation.
Detecto MCS-DF Series
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Detecto MCS-DF Series
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Old Will's Price: $287.55

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The Detecto MCS-DF Series Hanging Dial Scales are great for weighing fish or fresh washed veggies. Stainless steel pan with drainage holes included with the 8", double dial display.Models:

MCS-20DF, MCS-40DF, MCS-10KGDF, MCS-20KGDF

Health o meter 1522KL
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Health o meter 1522KL
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Old Will's Price: $295.40

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The Health o meter 1522KL Mechanical Pediatric Scale. 130lb x 1oz / 65kg x 20g capacity. This beam baby scale has a durable steel base, with an easy to clean weighing cradle and dual reading weight beams.
Penn Scale 1702B
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Penn Scale 1702B
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Old Will's Price: $322.40

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The 1702B Mechanical Baker's Scale From Penn Manufacturing has an 8 pound capacity with 1/4 ounce resolution. This durable scale is constructed of powder coated cast iron and has two 9" weighing pans for measuring your ingredients.
Seca 700 Pounds Only Model - Hand Post & Height Rod Included
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Seca 700 Pounds Only Model - Hand Post & Height Rod Included
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Old Will's Price: $326.17

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The Seca 7001121938 Mechanical Physician's Scale has a 500 pound capacity and includes a sturdy hand post to help patients maintain balance when weighing. This column scale also has wheels for easy transportation, large platform and easy to read beams.
Detecto 448 - Pounds Only - Handpost, Height Rod and Wheels Included
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Detecto 448 - Pounds Only - Handpost, Height Rod and Wheels Included
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Old Will's Price: $330.75

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The Detecto 448 Eye Level Physician's Scale has a 400 pound capacity with 4 ounce resolution and height rod for getting weight and height together. Durable construction, sturdy handpost and built on wheels make for a long lasting, easy to use scale.
Health o meter 1524KL
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Health o meter 1524KL
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Old Will's Price: $341.60

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The Health o meter 1524KL Mechanical Pediatric Scale. 130lb x 1oz / 65kg x 20g capacity. This beam baby scale has a durable steel base, with an easy to clean weighing seat and dual reading weight beams.
Detecto 475 / 4751
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Detecto 475 / 4751
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Old Will's Price: $489.38

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The Detecto 475 Mechanical Chair Scale is perfect for use in nursing homes and special care centers. Choose from model 4751 for 400 lb/ 175 kg capacity x 4 oz/100 g readability or model 475 for pounds only. Both durable and easy to care for.
Health o meter 445KL
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Health o meter 445KL
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Old Will's Price: $534.80

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The Health o meter 445KL high capacity mechanical chair scale. This medical scale has a 440lb capacity x 1/4lb resolution and a sturdy weighing seat for unstable patients. The 445 is full of great features like rolling castors, easy to read beams and more
Detecto 437S - Pounds Only
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Detecto 437S - Pounds Only
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Old Will's Price: $536.63

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The Detecto 437S Stainless Steel Eye Level Beam Scale has a 400 pound capacity with 4 ounce resolution and easy to use weighing beams. Durable stainless steel construction for a long life and an easy to clean design with removable platform cover.
Detecto 337S - Pounds and Kilograms
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Detecto 337S - Pounds and Kilograms
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Old Will's Price: $542.03

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The Detecto 337S Stainless Steel Eye Level Beam Scale has a 400 lb / 175 kg capacity with 4 oz / 100 g resolution and easy to use weighing beams. Durable stainless steel construction for a long life and an easy to clean design.
Detecto 2371S - Kilograms Only
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Detecto 2371S - Kilograms Only
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Old Will's Price: $556.88

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The Detecto 2371S Stainless Steel Beam Scale has a 180 kilogram capacity with 100 gram resolution and easy to use weighing beams. Durable stainless steel construction for a long life and an easy to clean design with removable platform cover.
Detecto 253 / 2531
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Detecto 253 / 2531
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Old Will's Price: $558.23

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The Detecto 253 series mechanical baby beam scales are super easy to use and durable for long lasting accuracy. Choose from model 253 for a 41 pound x 1/4 ounce capacity or the 2531 for a 20.5 kilogram x 10 gram capacity.
Detecto 439S - Pounds Only - Height Rod Included
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Detecto 439S - Pounds Only - Height Rod Included
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Old Will's Price: $564.98

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The Detecto 439S Stainless Steel Beam Scale has a 400 pound capacity with 4 ounce resolution and easy to use weighing beams. Included height rod allows you to get height along with your weight. Durable stainless steel frame, easy to care for.
Detecto 339S - Pounds and Kilograms - Height Rod Included
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Detecto 339S - Pounds and Kilograms - Height Rod Included
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Old Will's Price: $566.33

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The Detecto 339S Stainless Steel Eye Level Beam Scale has a 400 lb / 175 kg capacity with 4 oz / 100 g resolution and height rod for getting weight and height together. This scale also has a durable construction and easy to clean design.
Detecto 2391S - Kilograms Only - Height Rod Included
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Detecto 2391S - Kilograms Only - Height Rod Included
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Old Will's Price: $583.20

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The Detecto 2391S Stainless Steel Beam Scale has a 180 kilogram capacity with 100 gram resolution and easy to use weighing beams. Included height rod allows you to get height along with your weight. Durable stainless steel frame, easy to care for.
Detecto 854F100P - Pounds Only - NTEP Approved
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Detecto 854F100P - Pounds Only - NTEP Approved
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Old Will's Price: $780.98

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The Detecto 854F100P high capacity, heavy duty, industrial beam scale has a 1000 pound capacity with 0.5 pound readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto 854F50K - Kilograms Only - NTEP Approved
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Detecto 854F50K - Kilograms Only - NTEP Approved
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Old Will's Price: $780.98

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The Detecto 854F50K high capacity, heavy duty, industrial beam scale has a 500 kg capacity with 0.25 kg readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto 854F50P - Pounds Only - NTEP Approved
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Detecto 854F50P - Pounds Only - NTEP Approved
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Old Will's Price: $809.93

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The Detecto 854F50P high capacity, heavy duty, industrial beam scale has a 500 pound capacity with 0.25 pound readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto T3530 - NTEP Approved
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Detecto T3530 - NTEP Approved
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Old Will's Price: $944.33

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The Detecto T3530 Legal for Trade hanging dial scale is perfect for use anywhere your items are sold by weight. The large, double sided dial is easy to read with black digits & red pointer. 15" stainless steel weighing pan included.
Detecto 854F100PK - Pounds & Kilograms - NTEP Approved
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Detecto 854F100PK - Pounds & Kilograms - NTEP Approved
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Old Will's Price: $976.66

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The Detecto 854F100PK high capacity, industrial beam scale has a 1000 lb / 500 kg capacity with 0.5 lb / 0.25 kg readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto 854F50PK - Pounds & Kilograms - NTEP Approved
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Detecto 854F50PK - Pounds & Kilograms - NTEP Approved
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Old Will's Price: $1,012.64

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The Detecto 854F50PK high capacity, industrial beam scale has a 500 lb / 200 kg capacity with 0.25 lb / 0.1 kg readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto 954F100P - Pounds Only - NTEP Approved
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Detecto 954F100P - Pounds Only - NTEP Approved
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Old Will's Price: $1,618.99

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The Detecto 954F100P high capacity, heavy duty industrial beam scale has a 2000 pound capacity with 0.5 pound readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
Detecto 954F50K - Kilograms Only - NTEP Approved
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Detecto 954F50K - Kilograms Only - NTEP Approved
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Old Will's Price: $1,618.99

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The Detecto 954F50K high capacity, industrial beam scale has a 1000 kilogram capacity with 0.25 kilogram readability on dual sided beams. This beam scale has a fabricated steel construction for long life and rubolene wheels for portability.
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