This Defender has been discontinued by Ohaus and replaced with the Defender D52P12RQR1.
Ohaus is a fine scale. We love 'em!
But... we want to make you aware of one thing about Ohaus.
Unless it's defective, you simply cannot return an Ohaus product, no matter what.
You won't find this information on our competitor's sites, but Old Will thinks you should be aware of it when you buy an Ohaus scale.
- You can read the Ohaus Return Policy here -

Ohaus D51P10QR1 Defender 5000 NTEP Approved Bench Scale
with Square Platform

Standard level precision bench scales perfect for industrial weighing
25 pound capacity x 0.002 pound resolution

"In A Nutshell"
PowerPower cord (included)
6 C batteries (not included)
DisplayBacklit LCD
Tare FeatureYes
Hold FeatureYes
NTEP Certificates08-039 & 01-048
InterfaceRS232
Column Height13.8"
Platform Size12" x 3.7" x 12"
Indicator Size10.2" x 2.7" x 6.6"
Weighing Modes5

Included Accessories

  • AC Power Adapter

Weighing Modes

Mode:Capacity:Resolution:
(d value)
NTEP Resolution:
(e value)
Mode: PoundsCapacity: 25.000 lbResolution: 0.002 lbNTEP Resolution: 0.005 lb
Mode: OuncesCapacity: 400.00 ozResolution: 0.05 ozNTEP Resolution: -
Mode: Pounds : OuncesCapacity: 25 lbResolution: 0.05 ozNTEP Resolution: -
Mode: KilogramsCapacity: 10.000 kgResolution: 0.001 kgNTEP Resolution: 0.002 kg
Mode: GramsCapacity: 10000 gResolution: 1 gNTEP Resolution: -

Product Details

Class III NTEP Approved Legal For Trade The National Conference on Weights and Measures certifies this Ohaus Defender Legal for Trade with Certificate of Conformance Numbers 08-039 & 01-048. You can count on getting accurate readings time after time.

Programmable Power On Unit If your application needs weights in the same unit of measurement, (like pounds for instance), it can be a real pain if your scale always turns on ready to weigh in kilograms. It's a good thing you can program the D51P10QR1 Defender 5000 bench scale to always turn on with the weighing unit of your choice.

Programmable Beeper It has a beeper that will signal when weights meet certain criteria in checkweighing mode. This beep will also sound when a button is pressed on the scale's keypad. The best thing about this beeper? You can program the beep volume, or turn it off altogether, you can even set how the beeper will respond to weights.

Programmable Backlight You can even program the Defender's backlit display. If ya work in dim environments, you can set the backlight to always on, or to turn on when ya press a button or change the weight on the scale. If ya don't really need a backlight, just set it to off. No unnecessary power use here.

Programmable Auto Off If you've ever had your scale turn off on ya in the middle of important measurements, you'll realize what a blessing this feature is. You can program it to turn off automatically, or to stay on until you turn them off yourself.

Programmable Auto Printing Feature This industrial scale will automatically print your data for you! Just tell the scale to continuously send data to the printer, to send it at user selectable intervals, when the balance is stable, or to only send it when ya press the print key. That's pretty handy, right?

Average Piece Weight Before ya start counting your pieces, ya need to let the scale know how much each piece weighs. Ohaus made this simple by averaging the weight of the pieces ya put on the scale. Just type in how many pieces ya put on the scale, and the D51P10QR1 Defender 5000 will average the weights. The bigger your sample is, the more accurate the scale will be when counting your pieces. The sample amount will even be stored on the scale for future use.

Does This Thing Count? You bet it does! All ya need to do is weigh a sample amount of pieces, so the scale can know how much each piece weighs, then start counting. You'll be finished in no time.

RS-232 Serial Port The Defender 5000 has an RS232 port built right in. This is important is you're wanting to send your data to a printer for recording weight readings and other data.

Dynamic Weighing This bench scale has a really cool dynamic weighing feature. This feature allows you to accurately weigh unstable items, or weigh stable items in an unstable environment.

Checkweighing Make sure ya get your weights just right with the D51P10QR1. When ya weigh in this mode, you can set weight limits for the stuff you're weighing. If your sample weight is too low, too high, or just right, the scale will surely let ya know.

Percent Weighing This feature will let ya compare the weights of your samples against a predetermined reference weight. This can come in helpful in weight checking, compounding, formulating and more.

Tare & Pre-Tare Feature The tare button on the D51P10QR1 bench scale can be pressed to "zero out" the weight that is on the scale. You can then add more weight and the scale will only display the weights of the items you're adding. You can also save tare values for future use with frequently used containers.

Stainless Steel Platform This bench scale has a durable stainless steel weighing platform to make cleanup a breeze. Stainless steel is great because it doesn't scratch easily and keeps its shine without rusting or tarnishing.

Easy To Clean, Sealed Keypad You won't have to worry about dust and dirt getting stuck under and around the buttons. This industrial scale has an easy to clean membrane keypad with accurately labeled keys for easy weighing.

Liquid Level Indicator This very handy feature helps you quickly and easily get your scale nice and level. All ya have to do is adjust the feet on the bottom of the scale until the spirit bubble is centered within the level indicator. A level scale is important for getting the most accurate weight readings.

1 YEAR MANUFACTURER'S WARRANTY! When ya buy the D51P10QR1 Defender 5000, you'll need to head on over to the Ohaus website and register it to receive your one year warranty.

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We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

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