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Nondestructive Apple Sugar Meter

Product Number：

HM-ST1

Product Price:

$1340

Product Difference：

Near-infrared apple testing without cutting; 10.0–18.0% Brix range and a result in less than 3 seconds.

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Product Details

Nondestructive apple sugar meter with handheld touchscreen

Apple sugar meter near-infrared measurement and operating features

Apple sugar testing from orchard harvest to retail

Near-infrared apple sugar measurement principle

Android touchscreen and apple sugar meter controls

Rapid apple sugar measurement within three seconds

Portable apple sugar meter battery dimensions and weight

Apple sugar meter accuracy resolution and temperature compensation

Optical sensors and rechargeable battery details

Apple sugar meter technical specifications at 5 to 35 degrees Celsius

Hengmei company team and scientific instrument manufacturing

Hengmei laboratories and instrument application fields

Product Overview

HM-ST1 is a portable nondestructive apple sugar meter based on near-infrared spectroscopy. It estimates apple sugar content in Brix from reflected optical signals and a built-in calibration model, providing a result in less than three seconds without cutting the fruit.

Near-infrared light interacts with organic molecules inside the apple, including O–H and C–H groups. The optical sensor captures the returned spectral signal, and the instrument compares its absorption features with the apple sugar calibration model to calculate a Brix estimate.

Key Features

Android operating system and a 3.5-inch color touchscreen.
Automatic temperature compensation from 5 to 35 °C.
Results in less than three seconds, with automatic averaging of measurements taken at multiple points.
Open calibration supports checking and adjustment against a reference refractometer.
Local records can be reviewed, exported and uploaded through Wi-Fi. Sample numbers are generated automatically.
Built-in rechargeable lithium battery, Type-C charging and an IP64-rated housing.

Applications

Orchard monitoring of apple sugar content before harvest and during staged picking.
Sampling at apple purchasing points, cooperatives and wholesale receiving areas.
Sugar-content checks during apple grading, packing and retail display.
Apple variety selection, cultivation trials and storage research.

Technical Specifications

Parameter	Specification
Model	HM-ST1
Sample	Apple
Measurement principle	Near-infrared spectroscopy with an apple calibration model
Detection time	<3 s
Brix measurement range	10.0–18.0% Brix at a sample temperature of 5–35 °C
Brix resolution	0.1% Brix
Temperature resolution	0.1 °C
Brix accuracy	±1% Brix
Temperature accuracy	±1 °C
Brix repeatability	±0.5% Brix
Temperature compensation	5–35 °C
Operating temperature	5–35 °C
Display	3.5-inch color touchscreen
Communication and charging	Wi-Fi; Type-C USB
Data handling	Local storage, record search, export and upload
Battery	4400 mAh, 3.7 V built-in lithium battery
Protection rating	IP64
Dimensions	171 × 78 × 56 mm
Weight	Approximately 380 g

Apple variety and the measurement environment can affect accuracy. The stated Brix range applies at a sample temperature of 5–35 °C.

Configuration

The instrument includes three replaceable foam measurement pads and a built-in rechargeable battery.

Operation and Support

Place the measurement opening against the apple surface and start the test from the touchscreen. Use multiple measurement points when an averaged result is needed. Review the saved record, then export it or upload it through Wi-Fi. Use the open calibration function to check readings against a reference refractometer.