AP W-AD ex Series / AP W ex Series – Precisions Weighing Analytical Balances
NEW AP W-AD ex Series / AP W ex Series
Accurate Weighing. Next-Level Innovation.
Comfort and Trust in Every Weigh.
01 Precision Weighing
The minimum weighable quantity specified by the United States, European and Japanese pharmacopoeias has been improved from 20 mg in conventional models to 13 mg*, enabling analysis with smaller sample volumes.
02 Reliable Weighing
A AP Holder, ideal for accommodating various glass container sizes, is included as a standard accessory.
Effectively eliminates static from glassware and samples on the weighing pan when paired with the STABLO-AP ionizer.
03 Comfortable Operation
Carries forward the user-friendly features of earlier models.
Touchless sensor keys and a Smart Auto Door (featuring learning and manual trigger functions) reduce the physical burden of weighing tasks, providing a more comfortable weighing experience. Touchless operation also ensures highly reliable measurement.
Advanced Performance UniBloc Balances
Provides High-Speed Response and High Stability
The AP-AD series models not only offer excellent basic performance, such as fast weighing times of about two seconds and high measurement stability that minimizes errors, but also include new functionality that improves convenience, such as automatic doors and touchless sensors.
Automatic door functionality makes weighing operations even more convenient.


Clear visible from the side

English example
Built-in High-Performance Ionizer (Optional)
The ionizer eliminates influence of static electricity in 1/10 the time of previous models.
Note: Example of typical static electricity removal time (±1000 V –> ±100 V)
1 sec. for STABLO-AP and 10 sec. for STABLO-EX
W-AD ex Series Analytical Balances
(Equipped Standard with Smart Automatic Doors and Touchless Sensors)
| Series | W-AD ex Series | |||
| Model | AP225W-AD ex | AP135W-AD ex | AP225WD-AD ex | AP125WD-AD ex |
| Capacity | 220g | 135g | 220g/102g | 120g/52g |
| Minimum Display | 0.01mg | 0.1mg/0.01mg | ||
| Adjustment Weight | Built-in | |||
| Repeatability (at weighing capacity) |
0.03mg | 0.02mg | 0.1mg/0.02mg | |
| Repeatability (for low loads) |
0.0065mg (approx. 5% load) | |||
| Minimum Weight | 13mg | |||
| Linearity | ± 0.1 mg | ± 0.2 mg / ± 0.1 mg | ± 0.2 mg / ± 0.05 mg | |
| Response Time for Trace Measurements |
2 sec. | |||
| Response Time | 8 sec. | 2 sec. / 8 sec. | ||
W ex Series Analytical Balances
| Series | W ex Series | |||
| Model | AP225W ex | AP135W ex | AP225WD ex | AP125WD ex |
| Capacity | 220g | 135g | 220g/102g | 120g/52g |
| Minimum Display | 0.01mg | 0.1mg/0.01mg | ||
| Adjustment Weight | Built-in | |||
| Repeatability (at weighing capacity) |
0.03mg | 0.02mg | 0.1mg/0.02mg | |
| Repeatability (for low loads) |
0.0065mg (approx. 5% load) | |||
| Minimum Weight | 13mg | |||
| Linearity | ± 0.1 mg | ± 0.2 mg / ± 0.1 mg | ± 0.2 mg / ± 0.05 mg | |
| Response Time for Trace Measurements |
2 sec. | |||
| Response Time | 8 sec. | 2 sec. / 8 sec. | ||
W-AD Series Analytical Balances
(Equipped Standard with Smart Automatic Doors and Touchless Sensors)
| Series | W-AD Series | |||||
| Model | AP225W-AD | AP135W-AD | AP225WD-AD | AP125WD-AD | AP324W-AD | AP224W-AD |
| Capacity | 220g | 135g | 220g/102g | 120g/52g | 320g | 220g |
| Minimum Display | 0.01mg | 0.1mg/0.01mg | 0.1mg | |||
| Adjustment Weight | Built-in | |||||
| Repeatability (at weighing capacity) |
0.015 mg (to 20 g) 0.03 mg (to 100 g) 0.05 mg (to 220 g) |
0.05mg | 0.1mg/0.05mg | 0.1mg/0.02mg | 0.15mg | 0.1mg |
| Repeatability (for low loads) |
0.01mg (approx. 5% load) | 0.1 mg (approx. 5 % load) | ||||
| Minimum Weight | 20mg | 200mg | ||||
| Linearity | ± 0.1 mg | ± 0.2 mg / ± 0.1 mg | ± 0.2 mg / ± 0.05 mg | ± 0.3 mg | ± 0.2 mg | |
| Response Time for Trace Measurements |
2 sec. | |||||
| Response Time | 8 sec. | 2 sec. / 8 sec. | 2 sec. | |||
W Series Analytical Balances
| Series | W Series | ||||||
| Model | AP225W | AP135W | AP225WD | AP125WD | AP324W | AP224W | AP124W |
| Capacity | 220g | 135g | 220g/102g | 120g/52g | 320g | 220g | 120g |
| Minimum Display | 0.01mg | 0.1mg/0.01mg | 0.1mg | ||||
| Adjustment Weight | Built-in | ||||||
| Repeatability (at weighing capacity) |
0.015 mg (to 20 g) 0.03 mg (to 100 g) 0.05 mg (to 220 g) |
0.05mg | 0.1mg/0.05mg | 0.1mg/0.02mg | 0.15mg | 0.1mg | |
| Repeatability (for low loads) |
0.01mg (approx. 5% load) | 0.1 mg (approx. 5 % load) | |||||
| Minimum Weight | 20mg | 200mg | |||||
| Linearity | ± 0.1 mg | ± 0.2 mg / ± 0.1 mg | ± 0.2 mg / ± 0.05 mg | ± 0.3 mg | ± 0.2 mg | ||
| Response Time for Trace Measurements |
2 sec. | ||||||
| Response Time | 8 sec. | 2 sec. / 8 sec. | 2 sec. | ||||
X Series/Y Series Analytical Balances
| Series | X Series | Y Series | ||||
| Model | AP324X | AP224X | AP124X | AP324Y | AP224Y | AP124Y |
| Capacity | 320g | 220g | 120g | 320g | 220g | 120g |
| Minimum Display | 0.1mg | |||||
| Adjustment Weight | Built-in | None | ||||
| Repeatability (at weighing capacity) |
0.15mg | 0.1mg | 0.15mg | 0.1mg | ||
| Repeatability (for low loads) |
0.1mg (approx. 5% load) | |||||
| Minimum Weight | 200mg | |||||
| Linearity | ± 0.3 mg | ± 0.2 mg | ± 0.3 mg | ± 0.2 mg | ||
| Response Time for Trace Measurements |
2 sec. | |||||
| Response Time | 2 sec. | |||||

