Best Scale for Farmers Markets: Legal-for-Trade Price Computing Scales (NTEP Class III)
The best scale for a farmers market is an NTEP Class III price computing scale with a battery and a customer display, such as the Torrey LPC-40L (40 lb x 0.01 lb), on sale for $191.00 (regular $302.00), in stock.
Reviewed by MNM Scales technicians · Updated October 30, 2026 · Prices checked October 30, 2026
Short answer: the best scale for a farmers market is an NTEP Class III price computing scale with a built-in rechargeable battery, a customer-side display and a stainless steel plate. For most stands that means a 40 lb x 0.01 lb model such as the Torrey LPC-40L ($191.00) or the Torrey PC-40L ($268.00). Need more room for melons or boxes? Step up to the Torrey PC-80L ($288.00).
Selling by the pound at a farmers market makes your scale a commercial device, so it has to weigh accurately, show the customer what they are paying for and be legal for trade. MNM Scales has supplied, calibrated and repaired scales for over 30 years, and from our Cypress, Texas shop we set up price computing scales for produce stands, meat and egg vendors, bakeries, honey and spice sellers and other small food businesses. This guide covers what the rules ask for, which scales we recommend and what to check before you buy.
What makes a good farmers market scale
- Legal for trade (NTEP Class III). If the price depends on the weight, the scale has to meet NIST Handbook 44. An NTEP certificate is the accepted proof that a model does. See what NTEP legal for trade means.
- Price computing. Key in or recall a unit price and the scale shows weight, price per pound and total, so lines move faster and math errors disappear.
- A display the customer can read. Handbook 44 (G-UR.3.3) says a scale used in direct sales must be placed so the customer can read it and watch the weighing. Dual displays or a tower make that easy at a market table.
- Battery power. Many market spots have no outlet. A built-in rechargeable battery lets you weigh all day and charge at home.
- Capacity and division. 30 to 40 lb x 0.01 lb fits most produce; 60 to 80 lb suits melons, squash and bulk bags; 15 lb x 0.005 lb suits spices, tea and candy.
- Stainless steel and a wipe-clean keypad for juice, soil and morning dew.
Texas rules for selling by weight at a market
The Texas Department of Agriculture (TDA) uses NIST Handbook 44 as the standard for legal-for-trade scales: labeling, capacity and accuracy. TDA does not require an NTEP certificate for every device, but the scale must meet NIST Handbook 44 and suit its use; some scales do need one, so we recommend NTEP models and can check yours. TDA’s own guidance (Legal for Trade Scales in the State of Texas) adds that a device with an NTEP certificate meets the Handbook 44 minimums, which is why every scale in our picks below carries one.
- Placed in service by a licensed service company. TDA says all devices must be calibrated by a licensed service company before they are used for commercial transactions. Our TDA-registered technicians do this and file the RWM-780 placed-in-service report.
- Registered and open to inspection. TDA inspectors test commercial scales against Handbook 44. Learn more in our TDA scale registration guide.
- Selling in other states? Most U.S. states require an NTEP certificate to put a scale into commercial service, so an NTEP model travels with you.
- Not sure about your scale? Try the free Texas legal-for-trade scale checker, or send us the model and we will check it.
Best farmers market scales compared
| Scale | Capacity x division | Displays | PLUs | Battery | NTEP CC | Best for | Price |
|---|---|---|---|---|---|---|---|
| Torrey LPC-40L | 40 lb x 0.01 lb | Operator + customer LCD | 100 (4 direct) | Rechargeable, about 100 h | 06-046A3 | Lightest, smallest footprint (12.2 x 11.42 in) | $191.00 |
| Torrey PC-40L | 40 lb x 0.01 lb | Operator + customer LCD | 100 (4 direct) | Rechargeable, about 100 h | 95-041A12 | Larger 11.45 x 14.05 in plate | $268.00 |
| Torrey PC-40LT | 40 lb x 0.01 lb | Raised tower customer display | 100 (4 direct) | Rechargeable, about 100 h | 95-041A12 | Display clears baskets and sneeze guards | $272.00 |
| Torrey PC-80L | 80 lb x 0.02 lb | Operator + customer LCD | 100 (4 direct) | Rechargeable, about 100 h | 95-041A12 | Melons, squash, bulk bags | $288.00 |
| CAS S2000JR-15L | 6/15 lb x 0.002/0.005 lb | Operator + customer LCD | 200 (3 direct) | Built-in rechargeable | 06-013 | Finest reading for spices, tea, candy | $299.00 |
| CAS S2000JR-60L | 30/60 lb x 0.01/0.02 lb | Operator + customer LCD | 200 (3 direct) | Built-in rechargeable | 06-013 | Dual range, larger PLU memory | $299.00 |
Our picks and who they suit
Best value: Torrey LPC-40L
The Torrey LPC-40L is our most affordable NTEP price computing scale at $191.00 (regular $302.00). Its compact stainless body is easy to carry to your stand, the backlit LCDs face both you and your customer, and the 100 PLU memory holds a full season of produce prices. It runs about 100 hours per charge and has an RS-232 port if you add a printer later.
Best all-rounder: Torrey PC-40L
The Torrey PC-40L ($268.00 (regular $414.00)) has the same 40 lb x 0.01 lb reading with a larger 11.45 x 14.05 in stainless plate, so bunches of greens, bags of potatoes and trays of tomatoes sit flat. Progressive tare up to 40 lb removes the weight of a basket or box, and the half- and quarter-pound keys speed up pricing.
Best for busy tables: Torrey PC-40LT
The Torrey PC-40LT ($272.00 (regular $438.00)) raises the customer display on an adjustable tower, so shoppers can watch the weight, unit price and total over crates, baskets and sneeze guards, which helps you meet the Handbook 44 customer-view rule.
Best for heavy produce: Torrey PC-80L
For watermelons, pumpkins, squash or bulk bags, the Torrey PC-80L ($288.00 (regular $438.00)) weighs up to 80 lb in 0.02 lb steps with the same displays, PLUs and battery as the PC-40L.
Best for small, high-value items: CAS S2000JR-15L
Spice, tea, coffee and candy sellers get finer pricing from the CAS S2000JR-15L ($299.00 (regular $374.00)): 0.002 lb divisions up to 6 lb and 0.005 lb up to 15 lb, with 200 PLUs. Its RS-232C port connects a label or receipt printer such as the CAS DLP-50 (not included).
Dual-range alternative: CAS S2000JR-60L
The CAS S2000JR-60L ($299.00 (regular $374.00)) reads 0.01 lb up to 30 lb and 0.02 lb up to 60 lb, so light and heavy items share one scale, with 200 PLUs and a tactile keypad that handles wet hands.
See every model, including label printing and pole display scales, in our price computing scales category, or browse NTEP bench scales if you only need weight. Selling sliced meats or pre-packed items with labels? Compare options in our deli scale with label printer guide. Running a butcher counter or meat market? See our meat scale buying guide.
Farmers market scale buying checklist
- ☐ The scale is NTEP Class III and its data plate shows the NTEP certificate number.
- ☐ Capacity covers your heaviest single item, with a division of 0.01 lb or finer for items under 40 lb.
- ☐ Your customer can read the weight and price from their side of the table (dual display or tower).
- ☐ The battery lasts a full market day, and you have a plan to charge it between markets.
- ☐ It has tare (to remove baskets, bags or trays) and enough PLUs for your product list.
- ☐ The plate is stainless steel and the keypad wipes clean.
- ☐ Before the first sale in Texas, a licensed service company calibrates it and places it in service.
- ☐ Optional extras you may want: a spare Torrey 4 V battery ($19.98, not included), a spare Torrey 6 V AC adapter ($15.95; one adapter ships with the scale, the spare is not included), and a printer (not included).
Market-day tips that keep your scale accurate
- Level it every setup. Use the bubble level and leveling feet on a firm table; Handbook 44 (UR.4.2) asks owners to keep level-indicating scales level.
- Zero with an empty plate before each sale, and keep soil and leaves off the platter.
- Tare the container. Customers pay for produce, not baskets. Weigh the empty container and tare it, or sell by net weight.
- Shade the display and keep it dry. Rain and direct sun are hard on keypads and displays; a canopy helps.
- Spot-check weekly with a known test weight, and use our free scale tolerance calculator to see how far a Class III reading may drift. Pricing spices or tea in grams? Our free grain to gram converter converts grains, grams, carats, troy ounces and pennyweight.
Calibration, service and rentals from MNM Scales
Every scale above can ship calibrated. For 15 to 60 lb models, add in-house calibration with a certificate ($250.00) or NIST calibration with a NIST-traceable certificate ($595.00). The 80 lb PC-80L uses the in-house ($350.00) and NIST ($750.00) tier. See what scale calibration costs for every tier.
- On-site service: $295 + $2 per mile per visit across the Houston area, with calibration charged per scale. Handy for markets and stores with several scales. On-site calibration details.
- Legal-for-trade placement: our TDA-registered technicians calibrate and place your scale in service. Legal-for-trade calibration in Texas.
- Mail-in calibration: ship your scale to us from anywhere, including scales bought elsewhere. How mail-in calibration works.
- Pickup in Cypress: order online and pick up at our Cypress, TX shop by appointment.
- Repairs and rentals: we repair the brands we sell and rent all types of scales, including price computing scales for a single season or event.
- Recalibration reminders: see how often a scale should be calibrated.
Ready to sell by the pound? Tell us what you sell, your heaviest item and where your market is. We will recommend the right legal-for-trade scale, quote calibration and placement in service, and have it ready to ship or for pickup in Cypress.
Request a quote Call (832) 290-3120 Shop price computing scales
Farmers market scale FAQ
Does a farmers market scale have to be legal for trade?
Yes, if you price anything by weight. A scale used to set a price by weight is a commercial device, so it must be legal for trade: it has to meet NIST Handbook 44 and suit its use, and in Texas a licensed service company calibrates it and places it in service before the first sale. Every scale in our picks is NTEP Class III approved.
Does my farmers market scale need to be NTEP approved in Texas?
TDA does not require an NTEP certificate for every device, but the scale must meet NIST Handbook 44 and suit its use; some scales do need one, so we recommend NTEP models and can check yours. TDA’s guidance says a device with an NTEP certificate meets the Handbook 44 minimums, and most other states require the certificate to place a scale in commercial service, so an NTEP Class III price computing scale is the safe choice.
What size scale do I need for a produce stand?
A 30 to 40 lb scale with 0.01 lb divisions covers most produce, honey, meat cuts and baked goods sold by the pound. Choose 60 to 80 lb if you weigh whole watermelons, bulk bags or boxes, and a 15 lb dual-range scale with 0.005 lb divisions for small, high-value items such as spices, tea or candy.
Can a price computing scale run on battery at an outdoor market?
Yes. The Torrey PC-40L, PC-40LT, LPC-40L and PC-80L run about 100 hours per charge on their built-in rechargeable 4 V battery, and the CAS S2000JR scales have a built-in rechargeable battery too. Each ships with its AC adapter for charging at home.
How often should I calibrate a farmers market scale?
Have it checked at least once a year, and again after it is dropped, moved roughly or starts drifting. In Texas, TDA inspectors test commercial scales against Handbook 44, so a yearly calibration with a certificate before the busy season is a good habit.
Can MNM Scales calibrate my scale before it ships?
Yes. Add in-house calibration with a certificate ($250) or NIST calibration with a NIST-traceable certificate ($595) to any 40 to 60 lb scale here; the 80 lb PC-80L uses the $350 / $750 tier. Our TDA-registered technicians can also place your scale in service in Texas.
Can I rent a legal-for-trade scale for a single market season?
Yes. MNM Scales rents all types of scales, including price computing scales for seasonal markets and events. Call (832) 290-3120 or request a quote with your dates and location.