LK-D0301 Height and Weight Tester

Standalone Unit:
1. Directly measures human height and weight, reflecting the subject's body symmetry and developmental morphology index (BMI).
2. Integrated height testing probe and integrated weight base.
3. The tester uses a ≥3.5-inch LCD screen to display test values (simultaneously showing height, weight values, and BMI index), with an aesthetically pleasing interface and simple operation.
4. The tester features synchronous voice broadcast functionality.
5. Main technical parameters:
Measurement range:
Height: 90cm–210cm Weight: 0kg–180kg
Graduation value: Height: 0.1cm Weight: 0.1kg
Error: Height: ±0.1cm Weight: ±0.1kg
Main Unit:
1) The main unit uses an industrial-grade CONTEX-M3 CPU for direct control of underlying hardware, independently developed with full intellectual property rights. It operates on a closed 32-bit proprietary encrypted operating system to ensure system stability and security, avoiding interference from public network viruses. It is a closed-source system with instant startup and is not an Android system.
2) ★ The main unit features dual-chip storage for data backup, with a storage capacity of 60,000 to 120,000 records, and provides full-process voice prompts (volume adjustable and prompt sounds can be turned off). The main unit uses a 7-inch color touchscreen display system with adjustable backlight brightness (the screen has touch functionality, and all main unit functions can be operated via the touchscreen).
3) ★ The main unit (standard configuration) includes an audio interface for external speakers for amplification; it has a charging indicator light and a USB insertion indicator light function.
4) ★ The main unit has ≥2 USB ports; the main unit (standard configuration) includes a built-in imaging QR code and barcode scanner (for quick entry of tester information); the main unit can optionally include built-in non-contact IC card and ID card functionality; the main unit (standard configuration) supports USB interface barcode guns for quick entry of tester information; the main unit supports mechanical key input for test numbers (also supports full keyboard input via touchscreen for entering test number information containing numbers or letters); the main unit (standard configuration) supports batch import of tester information via USB interface for quick "roll call testing"; it includes an incremental function for test number entry to facilitate quick and convenient information input.
5) The main unit uses a menu-driven, what-you-see-is-what-you-get interface with full-process voice (volume adjustable and output-capable) prompts for foolproof operation, allowing independent operation after minimal training. Operators do not have permission to delete test data; only administrators have data management privileges to ensure data security.
6) Data networking is fully wireless, enabling real-time or batch transmission, using 2.4G communication (long-distance large-scale networking). The high-power high-frequency wireless communication module combines long transmission distance, strong diffraction and penetration capabilities, and large networking capacity. Wireless communication forms a closed-loop local self-organizing network, avoiding interference from public network viruses. The experimental transmission distance of the 2.4G module for networking can reach up to 2 kilometers in open areas.
7) The main unit uses silicone keys with a long service life, featuring a 4*5 matrix 20-grid multifunctional key design. It has undergone 100,000 cycles of durability and fatigue performance testing to ensure key text remains clear and does not wear off, with anti-slip functionality to prevent finger slipping and miskeying.
8) Supports dual power sources: DC/AC; built-in high-capacity lithium battery for continuous operation of over 10 hours, with full-process battery level display on the screen.
9) ★ The main unit is versatile, allowing users to select via menu keys and touchscreen operation, instantly pairing with any peripheral to enhance the unit's reusability and reliability. The main unit operates without connecting to a computer and can switch between any test items without modifying the main unit program. All communication between peripherals and the main unit uses the ANT 2.4G communication protocol.
10) ★ Test result data from the main unit can be quickly exported to a USB drive and then imported into the physical test data management software on a PC office computer (avoiding long waits for batch uploads and the issue of being unable to collect data in batches when the PC is not near the device).