Digital Magnetic Proximity Counter 5-Digit | CKCTINNER SJ18
Digital Magnetic Proximity Counter 5-Digit | CKCTINNER SJ18
CKCTINNER Electronic Digital Display Proximity Counter – Industrial Magnetic Induction Meter
Track every cycle, punch, or rotation with total accuracy using the CKCTINNER SJ18 5-Digit Electronic Counter. Designed for industrial and DIY electrical applications, this automatic induction counter meter uses magnetic proximity sensing to detect and log counts without physical contact — delivering reliable, repeatable results in workshop, factory, or lab environments.
Key Features
- 5-Digit or 6-Digit Display: Large, easy-to-read digital display for counting ranges suited to both short and extended production runs.
- Magnetic Proximity Sensing: Contactless magnetic induction with an approach distance of approximately 5–15 mm and a sensing distance of ≥ 35 mm — no physical trigger required.
- High-Speed Response: Handles a maximum counting frequency of 20 Hz with a minimum counting pulse width of just 2 ms — ideal for fast-moving machinery and punch presses.
- Dual Reset Options: Reset via the front panel "R" button or through an external terminal for remote or automated reset in production lines.
- Low-Power Battery Operation: Runs on a standard 1.5V AA battery (not included), making it easy to install anywhere without the need for mains wiring.
- Wide Operating Temperature: Functions reliably from -5 °C to 40 °C, suitable for most indoor industrial environments.
- CE Certified: Meets CE certification standards for safety and electromagnetic compatibility.
Technical Specifications
| Model | SJ18 |
| Power Supply | 1.5V AA Battery (not included) |
| Counting Range | 5-digit / 6-digit |
| Max Counting Frequency | 20 Hz |
| Min Counting Pulse Width | 2 ms |
| Magnet Induction Approach Distance | ≈ 5–15 mm |
| Magnet Induction Distance | ≥ 35 mm |
| Reset Mode | Panel R button / External terminal |
| Min Clear Pulse Width | 0.1 second |
| Ambient Temperature | -5 °C to 40 °C |
| Certification | CE |
| Country of Origin | Made in Mainland China |
Ideal Applications
- Punch press and stamping machine cycle counting
- Conveyor belt product tallying
- Rotating shaft or gear revolution counting
- Production line unit counting
- DIY electrical and automation projects
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Frequently Asked Questions
Q: Does the CKCTINNER SJ18 digital counter come with a battery?
A: No, the counter requires one 1.5V AA battery which is not included in the package. A standard AA battery available at any hardware or convenience store will power this unit.
Q: How far does the magnet need to be from the sensor for the counter to register?
A: The magnetic induction approach distance is approximately 5–15 mm, while the full induction distance is ≥ 35 mm. Position your trigger magnet within this range to ensure reliable, accurate counting.
Q: Can I reset the counter remotely or only via the front panel?
A: Both options are supported. You can reset using the panel "R" button for manual resets, or connect to the external terminal for remote or automated reset in a production-line setup.
Q: Is this counter suitable for high-speed machinery?
A: Yes. With a maximum counting frequency of 20 Hz and a minimum pulse width of 2 ms, the SJ18 is well-suited to fast-cycling equipment such as punch presses and stamping machines.