What is a Digital Tension Gauge?
The DTG-100 is a portable digital tension gauge that measures the coupling tension between vehicle connector pins using a non-contact method.
■ Operating Principle
Detects changes in distance between the Hall sensor and neodymium magnet
Measures changes in magnetic field strength to calculate tension values
■ Display Functions
Intuitive tension level display with 5-stage LED indicator
Auditory delivery of measurement results via buzzer notification
Components
No. | Item | Quantity | Remarks |
|---|---|---|---|
1 | DTG-100 Main Unit | 1 | |
2 | Pin Adapter Set | 11 types | Detachable, by connector specification |
3 | USB Type-C Cable | 1 | For charging and data communication |
4 | Quick Start Guide | 1 | Brief user manual |
5 | Packaging Case | 1 | TBD |
Product Specifications
| Item | Details |
|---|---|
Measurement Method | Non-contact detection using Hall sensor |
Operating Temperature | -20°C ~ +60°C |
Charging Method | USB Type-C (5V/1A or less recommended) |
Charging Time | Approx. 2 hours 30 minutes (full charge) |
Product Size | 160(L) x 25(W) x 20(H) mm |
Product Weight | Approx. 50g |
Certifications | KC, FCC |
Digital Tension Gauge Structure
No. | Item | Description |
|---|---|---|
1 | Adapter | 11 types of replaceable pin adapters |
2 | Sensor | Non-contact differential measurement |
3 | Button | Power On/Off, Measurement |
4 | Display | 5-Level LED (Red / Orange / Green / Green / Blue) |
5 | Battery | 350mAh built-in rechargeable |
6 | Notification | Buzzer sound feedback |
7 | USB TYPE C | USB Battery Charging |
[Digital Tension Gauge] How to Use
1. Press the power button briefly
Press the power button on the main unit briefly to turn on the power.

2. Attach pin adapter
Select and attach the pin adapter suitable for the connector to be measured (from 11 types) at the top of the main unit.
3. Enter measurement mode
After inserting the adapter into the connector, press the button once to enter measurement mode.
- Two beeps sound.
- Slowly pull the pin out.

4. Check measurement results
The highest tension level reached during measurement is held and displayed on the LED.
When finished, two beeps sound and the result LED remains lit.

Status/Display and Notifications
📌 5-Level LED (Red / Orange / Green / Green / Blue) Display
The highest level reached during measurement is fixed and displayed on the LED.
| Level | Colour | Status | Gauge |
|---|---|---|---|
| LV1 | RED | Low | ■ □ □ □ □ |
| LV2 | ORANGE | Warning | ■ ■ □ □ □ |
| LV3 | GREEN | Standard | ■ ■ ■ □ □ |
| LV4 | GREEN | Good | ■ ■ ■ ■ □ |
| LV5 | BLUE | Optimal | ■ ■ ■ ■ ■ |
📌 Buzzer Notifications
| Status | Buzzer Notification |
|---|---|
| Power On | DO-MI-SOL-DO |
| Power Off | DO-SOL-MI-DO |
| Measurement Start | 2 beeps (beep-beep) |
| Measurement Complete | 2 beeps (beep-beep) |
| Battery Warning | Event repeats every 1 second |
📌 Battery Status & Button Operation
| Category | Description |
|---|---|
| Battery Status | Battery level LED display (5 levels) when power ON |
| Charging: LED blinks | |
| Fully charged: LED off | |
| Below 30% remaining: buzzer warning | |
| Button Operation | Short press (< 1.5s): Power ON / Start measurement / Re-measure |
| Long press (≥ 1.5s): Power OFF |
📌 Pin Adapter Specifications
The pin adapter shall be set and used in accordance with the specifications specified in the GSW (Global Service Way) maintenance manual. These specifications serve as standards to ensure equipment safety and performance, and therefore must be applied as instructed in the manual.
| Size | Widt (mm) | Features & Typical Applications | Color |
|---|---|---|---|
| 020 | 0.51 mm | Ultra-small automotive connector pin | RED |
| 025 | 0.64 mm | Standard small automotive electrical connector | BLUE |
| 030 | 0.76 mm | Ultra-small sensor connector | WHITE |
| 040 | 1.02 mm | Small signal connector | YELLOW |
| 050 | 1.27 mm | Signal connector | PINK |
| 060 | 1.52 mm | Medium signal connector | SKY BLUE |
| 070 | 1.78 mm | Automotive multi-pin connector | BLACK |
| 080 | 2.03 mm | Medium connector | VLOLET |
| 120 | 3.05 mm | Medium-current connector | GRAY |
| 187 | 4.75 mm | Standard quick connect (flat tab) – 4.8 mm | GREEN |
| 020 | 6.35 mm | Standard quick connect (flat tab) – 6.3 mm | ORANGE |
📖 Special Appendix - FAQ
1. Power does not turn on
- Charge for more than 30 minutes using USB cable and try again
- Power automatically turns off when battery is low.
2. LED does not change during measurement
- Check if the adapter is properly attached
- Pull the pin in and out slowly and steadily.
3. Measurement values are unstable
- Remove strong magnetic field sources nearby.
- Keep the product stable before starting measurement.
4. Auto power off after 5 minutes
- This is normal operation.
- Automatic power off function for battery saving (if no operation for 5 minutes)
5. Repeated warning beep
- Battery level below 30%. Please charge immediately.
- Power is forcibly turned off when battery is depleted.
Warranty |
This product has been manufactured through strict quality control and inspection processes.
GIT provides product warranty as below in accordance with consumer protection law.
Please contact your place of purchase or head office in case of product malfunction.
Product Name | ||||
S/No. | Purchase Date | |||
Place of Purchase | Company | Name | ||
Contact | Warranty Period | Refer to 'b. Warranty period by item' | ||
Warranty service
Free service is available only if a malfunction occurs under normal use within the product warranty period after purchase.
If the purchase date cannot be confirmed, the warranty period is calculated as 1 year + 3 months (product distribution period) from the date of shipment from the head office.
Compensation Criteria
a. Compensation criteria by type
Type | Within warranty period | After warranty period |
| Repair needed within 14 days from purchase | Product exchange | Not applicable |
| Malfunction during normal use | Free repair | Paid repair |
| Same part fails 3 or more times | Product exchange | Paid repair |
| Unable to repair due to lack of parts within parts retention period | Handling our company regulations | |
b. Warranty period by item
Category | Type | At initial set purchase | When purchased individually | Re-warranty after repair |
Main unit | Malfunction during normal use | Compliance with applicable countrie's A/S regulations (contact the supplier) | ||
Accessories | 1 year | 6 months | Not applicable | |
Others | Compliance with applicable countrie's A/S regulations (contact the supplier) | |||
c. Item Classification
Category | Item |
Main unit |
|
Accessories |
|
Consumables |
|
Others |
|
* The above items include optional products, and the components may vary depending on the options selected.
* For additional optional products developed in the future, please refer to the website (www.gitauto.com).
Paid Service
Please check the product warranty carefully as service requests in the following cases will incur charges.
| ▼ Non-malfunction cases |
| - Service requested due to customer operation error |
| - Simple adjustments that do not involve disassembling the product or explaining product functions |
| - Requests for program updates |
| ▼ Malfunction due to consumer fault |
| - Malfunctions caused by customer's careless handling (drop, impact, breakage, excessive operation, etc.) |
| - Malfunctions caused by using unspecified power sources |
| - Malfunctions caused by modification or repair by third parties other than those designated by the company |
| - Malfunctions or damage caused by use of parts other than those designated by the company |
| - Malfunctions or damage caused by arbitrary changes/modifications of diagnostic cables, adapters, etc. |
| ▼ Other cases |
| - Malfunctions or damage due to natural disasters (fire, salt damage, flood, etc.) |
| - Consumable parts reaching end of life (battery, etc.) |
Other Information
- The period for holding A/S parts is 5 years from the product discontinuation date.
- When purchasing the product (SET items) as a whole, exchanges are made for each individual device.
Automotive diagnosis and repair methods must ultimately be decided by the user’s judgement, and manufacturers and sellers are not responsible for the results of diagnosis and repair methods.