* Condition: Brand New / Factory Sealed / Official Merchandise * Region of Manufacture: Republic of Korea ( South Korea) * Release Date: 10/14/2025 * Album type: TWS 4TH MINI ALBUM PLAY HARD (KIT VER.) * Includes: Album Package Kit Ball Chain Title&Credit Card Postcard Photocards (25pcs) Random Selfie Photocard out of 6 �� Pre-Order Information ** Pre Order shipments typically arrive at our facility within 2–7 business days after the  stated release date (barring unexpected delays). Shipping begins once items are in stock. ** Other purchased items will be held until pre-orders are ready to ship. �� Packaging Policy ** Outer boxes are for protection during shipping only. We do not offer exchanges or refunds for any damage to outer packaging.** Minor imperfections such as fine spots, scratches, flaws, or textural conditions that cannot be seen/identified from a 30 cm distance cannot be a reason for exchanges or return�� Cancellation & Returns ** Pre Orders CANNOT be cancelled once placed. All product details (release dates, versions, content) are subject to change by the manufacturer.

Specification

TWS 4TH MINI ALBUM PLAY HARD (KIT VER.) GM-100
Measuring Range 1.2 ~ 225.0 mm (Steel)
Resolution 0.1 mm
Accuracy ±(1%H+0.1) mm (H denotes measured thickness of the object)
Display Four-digit LCD display
Working Frequency 5 MHz
Sound Velocity Range: 1000 to 9999 m/s
Minimum limit for tube measuring Ø 20 × 3 mm (Steel)
Features Inverse sound velocity with known thickness
Measuring range by known thickness 1000 to 9999 m/s. (Thickness of the test block must be less than 20 mm to measure speed of sound)
Operating Temp. 0 to 40°C
Power Source 3 × 1.5 V (AAA)
Dimensions 72 × 146 × 29 mm
HSN 90318000
Price

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