**Walk-Thru Security Gate Metal Detector with Alarming for Weapons SA-IIIA**
The SA-IIIA is a high-sensitivity digital walkthrough metal detector that uses advanced electromagnetic testing and digital processing technology. It offers excellent detection capabilities for both magnetic and non-magnetic metals, as well as the ability to recognize personal items like coins, keys, and belt buckles. With the highest sensitivity, it can detect a 20 mm diameter steel ball. The multi-layered overlapping coil design combined with high-brightness LEDs allows for accurate horizontal positioning of detected metal objects, making it easier for operators to assess the situation.
**Function:**
This walkthrough metal detector is ideal for identifying dangerous items such as knives, guns, and other hidden metallic objects on individuals. It provides reliable security in public places like airports, schools, and government buildings.
**Specifications:**
| Description | Details |
|-------------------------|-------------------------------------------------------------------------|
| Model NO. | SA-IIIA |
| Sensitivity | 0–300 |
| Volume | 0.7 CBM/set |
| Gross Weight | 70 kg |
| Warranty | 12 months |
| Trademark | SAFE HI-TEC |
| Transport Package | Wooden Packing |
| Specification | CE, ISO9001 |
| Origin | China |
| HS Code | 8543709100 |
**Dimensions:**
- **Outer Frame:** 2220mm (H) x 820mm (W) x 500mm (D)
- **Inner Frame:** 2000mm (H) x 700mm (W) x 500mm (D)
**Technical Parameters:**
- **Unit Weight:** 70 kg
- **Electric Current:** AC 215V~230V, 50/60Hz
- **Power:** 12 W
- **Work Environment:** -20°C to +45°C
- **Max Distance:** 0.3m at low sensitivity; 0.5m at high sensitivity
- **Light Bar:** Located on the host panel
- **Operation Mode:** Remote control only
- **Sensitivity:** Adjustable from Level 0 to 299
- **Infrared Counting:** Intelligent counter for tracking passenger flow and alarm counts
- **Detecting Areas:** Six overlapping zones for precise location identification
- **Operating Temperature/Humidity:** 5°C – 40°C / 0%–90% (non-condensing)
**Key Features:**
1. Intelligent traffic and alarm counters.
2. Six pinpoint zones for accurate detection from head to toe.
3. Advanced broadband detection for both ferrous and non-ferrous materials.
4. Adjustable sensitivity (Level 0–299).
5. Shock-proof design to reduce false alarms.
6. Sound and light alarm system.
7. Tamper-proof operation with password protection.
8. Adjustable operating frequency to avoid interference from X-ray units, radios, etc.
9. Detection distance varies based on sensitivity setting.
10. Safe for pregnant women and individuals with heart pacemakers.
11. 12-month warranty (parts).
**Images:**
[Image 1](http://i.bosscdn.com/uploads/0b/de/dc/e97c4c64b3c4aebd857911a742.jpg)
[Image 2](http://i.bosscdn.com/uploads/94/b7/61/324b2201674f6c3409d3eb3b08.jpg)
[Image 3](http://i.bosscdn.com/uploads/68/e2/df/cf90684878af346c66838c3b72.jpg)
[Image 4](http://i.bosscdn.com/uploads/80/22/da/f17e7990c80bb0ddf3df63093e.jpg)
[Image 5](http://i.bosscdn.com/uploads/28/bb/6b/363cad167eadb311b9c654762c.jpg)
[Image 6](http://i.bosscdn.com/uploads/fe/99/4c/34582538b12f3937476e43b1ab.jpg)
The SA-IIIA is a reliable, efficient, and user-friendly security solution designed for environments where safety and accuracy are critical. Its advanced features and robust construction make it an ideal choice for high-traffic areas requiring consistent and accurate metal detection.
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