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Ohaus Scout SJX323N/E NTEP Approved 62,000d Class II Scale is brand new as of May 2016. When the security switch is placed in the locked position as required for legal for trade weighing the Ohaus SJX323N/E has a maximum weighing capacity of 64 grams and the display increments in 0.01 gram divisions. Weighing in carats the SJX323 can weigh up to 320 carats and increments in 0.1 carat divisions (0.1ct > 0.2ct > 0.3ct > 0.4ct). When the security switch placed in the unlocked position (also called NON Legal for Trade mode) the Ohaus SJX323N/E has a maximum weighing capacity of 64 grams and the display increments in 0.001 gram divisions and for carats 320 carats and and the display increments in 0.01 carats divisions.

If you are selling precious stones like diamonds, rubies, emeralds, and sapphires we really DO NOT recommend the SJX323N/E and although you might like the price of the Ohaus Scout SJX323N/E especially were it is Legal for Trade you really should save your money and buy the Mettler Toledo JS703C/A carat balance. When buying a legal for trade carat scale you really need better than 0.1 carat that the Ohaus SJX323N/E offers. The Mettler JS703 offers greater accuracy.

The Ohaus Scout SJX323N/E is a Class 2 Legal For Trade NTEP Approved Scale. The "e" (value of verification scale division) is 0.1 carats (0.01 grams). All this information can be verified by downloading the CofC # CofC 16-015

Weights & Measures Inspectors are suppose to follow the guidelines in Table 8 of section 2.20 Scales in NIST Handbook 44, 2.2 Theory of Tolerances in Appendix A for determining the applicable scale for the weighing application. You can download sections of NIST Handbook 44 - 2012 Edition here.

Table 8 says that the smallest item weighed on a class II scale with a verification scale division size of 0.01g should weigh at least 2 grams (20 divisions) - the SJX323N/E meets this description. So although you might be a jeweler thinking you could buy the SJX323N/E to weigh precious stones like a diamond following the guidelines of Handbook 44 you can only use the SJX323N/E for weighing diamonds over 2 grams or 10 carats (1gram = 5 carats).

The Theory of Tolerances states that the tolerance allowed on a commercial device should not cause economic injury to either the buyer or the seller. A class II scale with a verification scale division size 0.01 gram is allowed 1 division (0.01 g). In carats the verification scale division size is 0.1 carat is allowed 1 division (0.1carats). Again with the SJX323N/E the smallest diamond you should weigh needs to be at least 2 carats and if you are selling precious stones greater than 2 carats we hope you can afford something like the Mettler JS703C/A. If you are weighing a 2.9 carat stone and the scale recorded the weight as 3.0 carats there is a huge price difference thus creating "economic injury" and in our opinion not recommend for weighing finished precious stones.

So what application do we see selling the Ohaus Scout SJX323N/E for? Maybe people traveling the world buy rough semi-precious gemstones in the bush since they need a small portable battery powered digital scale. Other possibilities could be for scrap gold buyers weighing under the maximum weighing capacity of 64 grams for the SJX323N/E that need a legal for trade scale with a verification scale division equal to 0.01 grams to meets Minnesota Weights & Measures scale requirements for weighing precious metals. Also the selling of small quantities of legal medical marijuana although most medical marijuana dispensaries purchase the AND Weighing FX-300iN

If you were not going to be using the Ohaus Scout SJX323N/E for a commercial weighing application and DO NOT need a Legal for Trade scale then you are much better off purchasing either the Ohaus SPX123 or Ohaus SPX223 since these models cost less and offer greater weighing capacity.

Easy-to-use four-button operation along with a low profile housing measuring 8.8 x 8.0 x 3.5 inches while offering a large 3.7 inch diameter weighing platform are big selling points. The scale operates on either AC Adapter or four(4) standard AA batteries (not included) for complete portability. Select from multiple connectivity options available for data logging and communication. Ohaus offers expanded connectivity options including RS232, USB Host, USB Device, Ethernet and Bluetooth module making the Ohaus Scout SJX the most versatile portable digital scale on the market today for data logging and communications.

The Scout SJX Series is equipped with a large backlit display, fast stabilization time, multiple weighing units, application modes and offers a truly user-friendly weighing experience. The superior mechanical overload protection system of the Scout is comprised of a high-strength stainless steel pan and an impact-resistant plastic pan support. This enables the balance to safely withstand loads up to 10 times its rated capacity.

Beware of other vendor's trying to sell you the Ohaus SP123 or TAJ203 as a carats scale since none of these models are NTEP Approved and they are discontinued models. Also other dishonest vendors telling you to buy the Ohaus SPJ Jewelry Scales like the SPJ303 since they have a special and a super deal. Do they tell you none of the SPJ models are at NTEP Approved and also the SPJ is discontinued and what is left for a warranty?? It is not worth playing games if you are using the scale for a commercial weighing application since Weights & Measures Inspectors are not going to let you use an Ohaus TAJ or SPJ and many times you can get a hefty fine for not using the correct scale.

Ohaus SJX323N/E uses a uses a Mettler Toledo 30254251 strain gauge load cell. If you downloading the CofC # 16-015 and look in the "Standard Features and Options" section you will see the Ohaus Scout SJX323 uses a Mettler Toledo 30254250 strain gauge load cell. The Mettler loadcell delivers superior weighing technology for fast repeatable, reliable weighing results with a stabilization time as fast as 1.5 second resulting in quick results and increased efficiency.

The large backlit LCD provides operators a clear view of their weighing results. The optional auxiliary display kit (Ohaus part # 30269019) is an affordable solution for those states specified by Weights & Measures Inspectors to have a secondary display so the customer can see in real time. Typical this is referred to as "Direct Sales" - both buyer & seller are present and the scale needs to be positioned in such a way that the scale is in full view and the scale display can easily be read by both parties. Always check with your local Weights & Measures Inspectors for exactly all the requirements you must meet since some inspectors follow the rule exactly while other inspectors are very lenient.

To seal the device, a wire security seal may be threaded through tabs in a sliding cover and the base housing on the bottom of the scale. Alternately, a destructible sealing label may be affixed to the sliding cover and the base housing. When the sliding cover is sealed in the locked position, access to the calibration switch inside the housing is prevented. Remote calibration and configuration are also blocked when the device is sealed.

The Ohaus SJX Scales also feature adjustable feet and level bubble to help level your digital scale to provide the most accurate weighing results.

See the entire line of Ohaus SPX (NON-NTEP) and SJX (NTEP Approved) scales HERE.

Ohaus SJX323N/E Class II Carat Scale

print  |  
Brand Model Capacity Readability
Ohaus SJX323N/E Class II Carat Scale 62 g 0.001 g
Add. Features
  • Carats
  • Grains
  • Ounces
  • Pennyweight
  • Grams
  • Troy Ounces
  • Legal For Trade
  • Parts Counting
  • NTEP Class II
  • Below Weighing
Comparable Scales

A&D Weighing HR-60 analytical balance - $1502.00

Scientech milligram balance SP-150 - $1694.92

Other Brands EPB-303 Affordable Milligram Scale - $413.95

Other Brands EPB-103 Milligram Scale - $333.95

Sartorius Entris153i-1S Internal Cal Scale - $1197.63

Sartorius Secura 313-1S milligram - $2269.50

Sartorius ENTRIS323-1S chemical weighing - $849.60

Sartorius Practum 213-1S milligram balance - $1087.80

Scientech ZSP150 Milligram Scale - $1195.00

Ohaus AX423N/E NTEP Class II Scale - $1786.70

Ohaus Scout SPX223 Milligram Scale - $532.70

Sartorius Milligram balance ENTRIS153-1S - $769.00

A&D Weighing FX-200i Ammo Reloading Scale - $770.00

Scientech ZSP150NJ Mg Balance - $1350.00

Scientech ZSP400NP Pharmacy Balance - $1544.00

Scientech ZSP400NJ Milligram Scale - $1544.00

Ohaus EX223 milligram lab balance - $2371.50

Other Brands EPB-203 Milligram Science Scale - $379.95

Ohaus AX223N/E Class II Ext Cal - $1533.40

Sartorius Quintix 213-1S milligram scale - $1819.00

Ohaus Pioneer PA163C with Internal Cal - $1065.05

Ohaus SPX123 Milligram Scale - $476.00

Mettler Toledo JS703C/A carat balance - $2395.00

Mettler Toledo JS1603C/A diamond scale - $2625.00

A&D Weighing FX700CT Milligram Balance - $999.97

A&D Weighing FX120iWP waterproof scale - $1113.75

A&D Weighing FZ120i internal calibrated scale - $885.50

A&D Weighing FX120iN NTEP Class 2 approved scale - $795.90

A&D Weighing FX200iN NTEP Approved Legal For Trade - $821.10

A&D Weighing FX300iN NTEP approved class 2 scale - $863.80
MSRP: $680.00
YOU PAY $499.25
Ohaus Scout SJX323N/E milligram lab scale
Bright backlit LCD & 4 button keypad enables efficient operation and ease of use. The sprint leveling bubble located to the right of the display allows you to know whether your scale is level to deliver the most accurate weighing results. The Scout's large backlit display increases readability in low light working conditions, and is easier to view from a distance. The Ohaus Scout SJX323N/E features 3.7 inch diameter weighing platform with ABS draftshield. Scout's ingenious draftshield was designed with an easy to remove top cover piece. This serves as a wind protection ring which lessens external influences to the weighing platform, while maintaining weighing speed.

PWB Discount Price

Ohaus Scout SJX323NE $499.25

The Scout SJX323N/E is built using strain gauge technology. The strain gauge can give you fair weighing results for weighing static loads, but can drift much more due to temperature variations caused by excitation energy used with a load cell strain gauge weigh sensor. You'll get better performance, linearity and repeatability with an electromagnetic weigh sensor like those found in the A&D Weighing FX120iN, Ohaus AX223N/E or Mettler Toledo JS703C/A but this weigh sensor design cost more money. If you don't understand then watch this video HERE demonstrating a magnetic force restoration balance verses strain gauge scale.
S&H via UPS ground FREE UPS Ground in the lower 48 states
Grams 64 x 0.001 g
Carats 320 x 0.01 ct
Ounces 2.2575 x 0.0005 oz
Troy Ounces 2.0575 x 0.0005 ozt
Pennyweight 41.153 x 0.01 dwt
Grains 987.6 x 0.2 GN
Repeatability std (g) ±0.002
Linearity (g) ±0.003
Stabilization Time ≤1.5 seconds
Legal for Trade YES Class II -  CofC 16-015
Verification scale division (e) gram (0.01g), carat (0.1 ct), ounce (0.0005 oz), ounce troy (0.0005 ozt), pennyweight (0.01 dwt), & grain (0.2 GN)
Displayed scale division (d) gram (0.001g), carat (0.01 ct), ounce (0.0005 oz), ounce troy (0.0005 ozt), pennyweight (0.01 dwt), & grain (0.2 GN)
Span Calibration Requires 50g calibration weight (Included)
Linearity Calibration Requires 30g & 60g (NOT Included)
Construction ABS housing & stainless steel pan
Weigh Sensor Strain Gauge
Weighing Units gram, carat, ounce, ounce troy, pennyweight & grain
Weighing Applications Weighing, Parts Counting, Percent Weighing, Check Weighing, Totalization, Density Determination, Display Hold
Tare Range Full capacity by subtraction
Pan Size 3.7 inch diameter platform
Power Requirements AC adapter (included) or 4 AA batteries (not included)
Typical Battery Life 80 hours
Communication OPTIONAL modules available are RS232, USB Host, USB Device, Ethernet or Bluetooth (available as an accessory, compatible only with Android OS device)
Display Type Liquid crystal display (LCD) with backlight
Display Size 20 mm digits
Overload Capacity 10 times rated capacity
Operating Temperature Range 10°C to 40°C at 10% to 80% relative humidity, non-condensing
Temperature Range 50°F to 86°F/10°C to 30°C
Storage Conditions -20°C to 55°C at 10% to 90% relative humidity, non-condensing
Scale Dimensions
(W × D × H)
8 × 8.7 × 4.1 inches
202mm × 222mm × 103mm
Shipping Dimensions 11.8 × 9.8 × 5.1 in / 300 × 250 × 129 mm
Net Weight 2.2 lb / 1 kg
Shipping Weight 4.4 lb / 2.0 kg
Ohaus Scout SJX Scale Brochure Ohaus Scout Electronic Scales Download this color brochure showing additional features of the Ohaus Scout SJX Jewelry Scales
Ohaus Scout operation manual Manual Ohaus Adventurer user manual Download the Instruction Manual for the Scout SJX loaded with tons of information.

Learn how to calibration the Ohaus Scout digital scale. In the YouTube video above we perform a span calibration that uses two weight values: zero and a weight value at or near the digital scale's capacity. We don't stop here, we also walk you step by step how through the procedure for linearity calibration, which minimizes deviation between actual and displayed weights within the scale's weighing range. Three weight values are used: zero, a weight value within the scale's weighing range which is set to 1000g, and a weight value at or near the balance's specified capacity which is preset at 1500g for the SJX1502. The steps to perform calibration for the SJX1502N/E are similar for the SJX323N/E and various Ohaus Scout SPX, SKX or SJX models except the value of calibration weight used for calibration is different. The 50 gram span calibration weight is included with Ohaus SJX323N/E but the 30 gram & 60 gram weight required for linearity calibration are NOT INCLUDED but can be purchased at
Ohaus Scout SPX123 milligram scale
The new Ohaus Scouts Portable Balances are their latest generation of weighing perfection. Since the inception of the Ohaus Scout over 2 decades ago Ohaus' scale engineers have refined the electronics, performance and features to deliver a spectacular weighing instrument. Stabilization time as fast as 1.5 second and high resolution load cell with 64,000d resolution and readability to 0.001g, delivers extremely quick, precise and repeatable weighing results.
Ohaus scale with optional second display
Just like the Ohaus Scout SJX1502N/E shown above the Ohaus SJX323N/E can be purchased with optional Ohaus 30269019 Auxiliary Display Kit. The kit includes PAD7 remote display, two(2) mounting brackets and the Ohaus 30268982 RS232 Interface module. The remote display allows 2 people to have their our display.
See as we unbox and review all the features of the Ohaus Scout SJX1502. What comes with the scale, how do you setup the scale, where do the batteries go, found the underhook?? All your questions can be answered by watching this informative YouTube video above. We use the Ohaus SJX1502N/E but most of the topics reviewed are similar to the Ohaus Scout SJX323N/E.
Ohaus Scout SPX223 milligram with winshield lessens the effects of air turbulence
Rear view of scale with PS/2 connector (left side of scale) for optional communication modules (USB, RS232, Ethernet or Bluetooth). Next is connection for the AC Power connection and to the far right is Kensington lock port.
Ohaus USB Scale Interface
The optional Ohaus 30268984 USB Interface module plugs into PS/2 connector on back of the Ohaus Scout Scale. The OHAUS USB Interface Kit is a unique solution to the problem of connecting a Scout Balance to a computer using a Universal Serial Bus (USB). The USB Interface kit includes a CD with the software drivers to create the required virtual port on the computer. Works with PC running Windows 98, Windows 98SE, Windows ME, Windows 2000, Windows XP or Windows 7. The USB Interface module and DOES NOT include any data acquisition software.
Ohaus Scout digital scale weigh below hook
The Ohaus Scout Scale is equipped with a weigh below hook for weighing below the balance. Before turning the balance over remove the weighing pan and platform support, place the transportation lock in the locked position to prevent damage. To use this feature remove the protective cover for the weigh below opening. The digital scale can be supported using lab jacks or any other convenient method. Ensure the scale is level and secure. Power on the Scout Scale, then use a string or wire to attach items to be weighed. Below weighing is used for weighing magnetic materials, large samples that won't fix on the weighing platform or extremely hot or cold sample that would effect the scale's electronics if placed directly on the weighing platform due to thermal heat/cold transfer. Additional applications would be specific gravity determination.
Ohaus milligram scale bottom side
The Ohaus Scout operates on AC adapter (included) or 4 AA batteries (not included). There are four(4) adjustable feet to assist in leveling your Ohaus Scout digital scale.
NTEP Scale lockout switch for legal for trade commericial weighing applications
The lockout switch can be used to lock out the Scout Scale to prevent configuration changes. This is required if the scale is used for a commercial weighing application. Your Weights & Measures Inspector will use a wire with lead crimp to prevent unlocking the scale.
Ohaus Scout weighing platform lockout
The Ohaus Scout Scales have a red transportation lock on sub platform of the balance that needs to be disengaged before you start your weighing. Simply turn the red pointer 90° counter-clockwise.

The impact-resistant pan support safeguard against shock and overloading the balance in rugged and demanding environments. The Scout engineered with superior overload protection rated at 10 times the capacity of the digital scale.

Ohaus Scout SJX Digital Scale
Download the User Manual to understand all the functions & features

(select the model & any of the options and then the "BUY HERE" image)

Ohaus Scout

Ohaus balances Options (S&H additional for accessories)

Auxiliary Display Kit Call for availability
Ohaus 30268984 USB Interface module $105.00
Ohaus 30268982 RS232 Interface module $151.00
Ohaus 30268985 Bluetooth Interface Kit $252.00
Ohaus 30268986 Ethernet Interface Kit $164.00
Ohaus 30268983 USB Host Interface Kit $173.00
WinWedge Std Software Wedge for Windows $349.00
Ohaus SF40A Portable Dot-Matrix Impact Printer $902.00
5 rolls of paper for SF40A $76.00
Ink Ribbon for SF40A $54.00
Anti-Theft Security Lock (Kensington Slot Type) $211.00

  External Weights Weighing Mass Mass Weights External Calibration

Optional Calibration weight and weight sets.

60g ASTM Class 1 (± 1.85 mg) with NVLAP Cert $143.00
50g ASTM Class 1 (± 0.12 mg) with NO Cert $61.00
50g ASTM Class 1 (± 0.12 mg) with NVLAP Cert $137.00
30g ASTM Class 1 (± 0.74 mg) with NVLAP Cert $139.00
1mg-100g 21 Piece Class 1 Weight Set with NVLAP Cert $2059.00
9 pc. Weight Set (100 g - 1 g) Class 1 with NVLAP $1095.00
Cal-Paks 50g, 5g, and 200mg Class 1 with NVLAP $327.00
Cal-Paks 50g, 5g, and 2g Class 1 with NVLAP $328.00
Weighing Pans
YWP06G Weigh Pan w/ 3.25" Diameter and 0.75" depth $30.00

The Ohaus Scout series are all strain gauge weigh sensor. If you want better weighing performance with a Magnetic Force Restoration weigh sensor consider the A&D FX-120iN, FX-200iN or FX-300iN. These A&D Weighing precision balances are backed with a 5 year limited manufacturer warranty which is a lot longer than Ohaus 2 year limited warranty.
Ohaus Scout SPX123    Ohaus Scout SPX622  Ohaus Scout SJX1502N/E  Ohaus Scout SPX2202  Ohaus Scout SPX8200
Select from these Ohaus Scout Digital Scales
Model Cap x Read (g) Pan Size LFT Price
SJX323N/E 64g x 0.001g 3.7" ø YES 0.01g d $499.25
SPX123 120g x 0.001g 3.7" ø NO $476.00
SPX223 220g x 0.001g 3.7" ø NO $532.70
SPX222 220g x 0.01g 4.7" ø NO $349.30
SPX422 420g x 0.01g 4.7" ø NO $489.30
SPX622 620g x 0.01g 4.7" ø NO $571.90
SJX622N/E 620g x 0.01g 4.7" ø YES 0.1g d $595.00
SPX1202 1200g x 0.01g 6.7" x 5.5" NO $652.40
SJX1502N/E 1500g x 0.01g 6.7" x 5.5" YES 0.1g d $693.00
SPX2202 2200g x 0.01g 6.7" x 5.5" NO $734.30
SPX421 420g x 0.1g 4.7" ø NO $193.20
SPX621 620g x 0.1g 6.7" x 5.5" NO $285.60
SPX2201 2200g x 0.1g 6.7" x 5.5" NO $359.10
SPX6201 6200g x 0.1g 6.7" x 5.5" NO $592.20
SJX6201N/E 6200g x 0.1g 6.7" x 5.5" YES 1g d $612.50
SPX8200 8200g x 1g 6.7" x 5.5" NO $298.20
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