Scientech has now coupled NTEP (legal-for-trade) certification with our new revolutionary Zeta Series’ design in order to give you jewelry scales that have high precision. This unique marriage gives you the advantage of a very accurate scale, which complies with all the applicable technical requirements of Handbook 44, while possessing the ability to last decades under extreme abuse. This exclusive design is so impressive that these hardy models currently have a patent pending and carry a 5-year North American warranty or a 2-year international warranty.

Under NTEP Certificate Number 07-017, two of our 1mg Zeta models now carry the NTEP non-computing jewelry scale, Accuracy Class II, designation. Each robust model can accurately display five different units of measure quickly and easily. As required by NTEP certification, each unit can be sealed off with a metrological seal which is attached by a state Weights and Measure inspector to prevent undetected access to the calibration function of the scale. Also they possess a tamper proof badge for all the required information.

Please note that each NTEP Zeta scale has a weighing sensor with a suspension system which cannot be broken by customer abuse or by dropping a weight onto the weighing pan. As you might know, the highest failure mode for any analytical (0.1mg) or semi analytical (1mg) balance is a broken suspension system due to them having fragile pivots, pullers, flexures, or bearings. Then when any weight is dropped on the weighing pan (this is called shock loading) or by user misuse, these fragile pivots, pullers, flexures, bearing will break. The way our competitors try to handle this concern is to state that they have "overload" protections. However, overload protection does not protect against shock loading or customer abuse. Therefore, the damaged scale is not covered under warranty and you are forced to pay high repair charges.

In contrast, the new technology used in the Zeta NTEP scales eliminates any pivots, pullers, flexures, or bearings. Therefore, it is not possible to break the suspension system of these rugged scales. Please see the streaming video on the homepage of this web site to see what these scales can do. All observers who have seen this video have been stunned that the Zeta scales are not damaged by such extreme abuse.

In addition, each unrivaled Zeta NTEP model is handcrafted in the USA and retains all the accuracy, durability, and user-friendly standard features you have come to expect from Scientech. Also you will be assured by knowing that you are backed by an ISO9001 manufacturer.


GLP/GMP/ISO compatible Capacity tracker
RS232 data interface Stability indicator
Auto zero tracking Check weighing
Built-in security bracket Percent weighing
Dynamic weighing Parts counting
Selectable filtering Multiple units of measure



NTEP certified
Jewelry legal-for-trade Jewelry legal-for-trade
Accuracy class
Weighing mode
Single Range Single Range
Capacity and readability
150g where d=0.001g, e=0.01g 400g where d=0.001g, e=0.01g
150ct where d=0.001ct, e=0.01ct 400ct where d=0.001ct, e=0.01ct
96.4dwt where d=0.001dwt, e=0.01dwt 257dwt where d=0.001dwt, e=0.01dwt
4.8ozt where d=0.0001ozt, e=0.001ozt 12.8ozt where d=0.0001ozt, e=0.001ozt
5.3oz where d=0.0001oz, e=0.001oz 14.1oz where d=0.0001oz, e=0.001oz
Repeatability (one std dev)
1.5mg 1.5mg
± 1.5mg ± 1.5mg
Tare range
0-150g 0-400g
Stabilization time
User selectable User selectable
Weighing speed
Adaptive Adaptive
Units of measure
grams, carats, pennyweight, oz, troy oz grams, carats, pennyweight, oz, troy oz
Data interface
RS232 bidirectional RS232 bidirectional
Baud rates
300, 600, 1200, 2400, 4800, 9600, 19,200 300, 600, 1200, 2400, 4800, 9600, 19200
Weighing pan size
Circular, 4.5 " diameter Circular, 4.5 " diameter
Windscreen (std)
Circular, 6 " diameter x 3.5 " H Circular, 6" diameter x 3.5" H
Windscreen (opt)
7.5" W x 8.25" D x 9.5" H 7.5" W x 8.25" D x 9.5" H
Power supply
Auto switching 115/230VAC, 50-60Hz +/-10% Auto switching 115/230VAC, 50-60Hz +/-10%
Calibration weight (opt)
100g or 150g 200g or 400g
Housing dimensions
7.5"W x 11.25"D x 3.25" H 7.5"W x 11.25"D x 3.25" H
9.5 lbs 9.5 lbs


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