A&D AD-4212B-23 Weigh Module, 21 g × 0.001 mg
The A&D AD-4212B-23 is the 1 µg production weigh module: 21 g × 0.001 mg, Ø34 mm pan, separate 80 mm IP54 sensor, about 2 m display cable, RS-232 and comparator output. It is not AD-4212B-101 (31 g / 110 g smart range) and not AD-4212B-102 (110 g × 0.01 mg).
Manufacturer: A&D AD-4212B and the A&D AD-4212B datasheet (names AD-4212B-23). A&D US AD-4212B-23.
What is in the box
- AD-4212B-23 weighing unit and display unit
- About 2 m connection cable
- Ø34 mm pan
- OIML Class E2 calibration weight
- Stainless steel breeze break
- AC adapter
- Instruction manual
Verified specs
| Brand | A&D Weighing |
|---|---|
| Model | AD-4212B-23 |
| Product Type | Production weigh module |
| Capacity × readability | 21 g × 0.001 mg (1 µg) |
| Repeatability | 0.003 mg (0–10 g) / 0.004 mg (10–21 g) |
| Linearity | ±0.01 mg |
| Stabilization (FAST) | About 12 s |
| Pan | Ø34 mm |
| Calibration | External; OIML Class E2 weight included |
| Interfaces | RS-232C; 3- or 5-level comparator with buzzer (standard) |
| Optional I/O | AD4212A-01 BCD or AD4212A-08 Ethernet — not both with the standard I/O |
| Cable length | About 2 m between weighing unit and display (AD4212A-07 3 m extension optional) |
| Weighing unit | 80 × 230 × 90 mm / about 2.3 kg; IP54; SUS304 body / SUS316 pan |
| Display unit | 237 × 150 × 155 mm / about 2 kg |
| Power | AC adapter (about 15 VA) |
| Breeze break | Stainless steel, included |
| NTEP (this SKU) | No — production module, not a legal-for-trade bench |
| In the carton | Weighing unit, display, 2 m cable, Ø34 mm pan, Class E2 cal weight, SS breeze break, AC adapter, manual |
Applications
- In-line microgram filling and checkweigh
- Vacuum-chamber or enclosed production weighing
- OEM systems that need 1 µg on a 21 g module
A&D AD-4212B-23 is 21 g × 0.001 mg with an IP54 weighing unit — not series-level IP65. Ethernet is the optional AD4212A-08 board, not on-board. A&D lists this 1 µg B-series carton as discontinued; this page is remaining live stock. The current 1 µg production module is AD-4212D-33 / AD-4212D-32.
Questions before you order
Questions on compatibility, calibration, or what is in the box? All Scales USA, 21249 FM 529 Rd, Cypress, TX 77433. Call (832) 766-5410 or email pete@allscales.com. Also: (281) 656-2666 · (832) 290-3120.
Specifications
Brand A&D Weighing Model AD-4212B-23 Product Type Production weigh module Capacity × readability 21 g × 0.001 mg (1 µg) Repeatability 0.003 mg (0–10 g) / 0.004 mg (10–21 g) Linearity ±0.01 mg Stabilization (FAST) About 12 s Pan Ø34 mm Calibration External; OIML Class E2 weight included Interfaces RS-232C; 3- or 5-level comparator with buzzer (standard) Optional I/O AD4212A-01 BCD or AD4212A-08 Ethernet — not both with the standard I/O Cable length About 2 m between weighing unit and display (AD4212A-07 3 m extension optional) Weighing unit 80 × 230 × 90 mm / about 2.3 kg; IP54; SUS304 body / SUS316 pan Display unit 237 × 150 × 155 mm / about 2 kg Power AC adapter (about 15 VA) Breeze break Stainless steel, included NTEP (this SKU) No — production module, not a legal-for-trade bench In the carton Weighing unit, display, 2 m cable, Ø34 mm pan, Class E2 cal weight, SS breeze break, AC adapter, manual Applications & Industries
- In-line microgram filling and checkweigh
- Vacuum-chamber or enclosed production weighing
- OEM systems that need 1 µg on a 21 g module
Manuals & Accessories
Contact Us
Questions on compatibility, calibration, or what is in the box? All Scales USA, 21249 FM 529 Rd, Cypress, TX 77433. Call (832) 766-5410 or email pete@allscales.com. Also: (281) 656-2666 · (832) 290-3120.
Model
AD-4212B-23Product Type
Weigh Modules


