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Benchtop Water Quality Tetranitrogen Detector

Product Number：

HM-T4N

Product Difference：

Benchtop laboratory multi-parameter analyzer measuring ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, and total nitrogen, featuring dual cuvette and tube colorimetry, a 10.1-inch touch screen, and a built-in thermal line printer.

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Product Details

Water quality tetranitrogen detector overview with handheld testing meter and water splash background

Core features including Android system, touch screen, tube-dish colorimetry, WiFi support, large storage and thermal printing

Wastewater testing application areas including sewage disposal, aquaculture, medicine, surface water, brewing and chemical petroleum

Two models available: HM-T4N table-top and HM-S4N hand-held water quality tetranitrogen detector

Detection parameters, reference standards and measuring ranges for ammonia, nitrate, nitrite and total nitrogen

HM-S4N hand-held tetranitrogen detector with 3.5-inch touch screen and portable design

HM-T4N 10.1-inch LCD touch screen with Android operating system and settings interface

HM-T4N precision colorimetric method supporting cuvettes and 16mm colorimetric tubes

HM-T4N built-in thermal printer outputting testing result receipt

Technical parameter comparison table between HM-S4N and HM-T4N models

Shandong Hengmei Electronic Science and Technology Co., Ltd. company team group photo

Company laboratory testing facilities and research personnel conducting scientific testing

Product Overview

HM-T4N is a benchtop water quality analyzer designed with reference to national and environmental testing standards for the determination of Ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen in water. Engineered for laboratory testing and water monitoring stations, the instrument combines intelligent photometric detection with automated data processing, presenting results in clear lists and charts.

The analyzer runs an Android 7.1.1 operating system on a 10.1-inch color LCD touch screen with bilingual Chinese and English input. It provides high photometric stability and flexible sample handling for routine lab workflows and regulatory reporting.

Key Features

Android 7.1.1 operating system delivering rapid response, high stability, and intuitive bilingual touchscreen operation.
10.1-inch color LCD touchscreen (1024×768 resolution) displaying clear readings, test curves, and historical records.
Precision colorimetric cell design utilizing consistent imported ultra-bright LED cold light sources, minimizing optical errors with automatic brightness adjustment and calibration.
Versatile optical compatibility supporting 10 mm, 30 mm, and 50 mm optical cuvettes as well as φ16 mm circular colorimetric tubes.
High-capacity data management storing up to 8 million measurement sets with time-based querying and Excel data export via USB drive.
Multi-channel connectivity featuring USB 2.0, Wi-Fi, Bluetooth, mobile hotspot, and RJ45 Ethernet for local network and environmental supervision cloud platform transmission.
Built-in thermal line printer supporting user-selected report headers, test parameters, results, and QR-code printing.
Built-in operational tutorial videos for rapid operator onboarding and future firmware upgrade capability.

Applications

HM-T4N is documented for water and wastewater testing across diverse monitoring scenarios, including municipal sewage treatment plants, industrial wastewater management, river basin and lake surface water monitoring, aquaculture water control, brewing and fermentation processes, petrochemicals, metallurgy, papermaking, and pharmaceutical effluent compliance.

Technical Specifications

Parameter	Specification
Indication Error	≤ ±5%
Instrument Repeatability	< 0.5%
Instrument Stability	< 0.5%
Photochemical Stability	Absorbance drift ≤ 0.002 A within 20 minutes (100,000 hours light source lifespan)
Ammonia Nitrogen (NH3-N)	HJ 535-2009 / HJ 536-2009; Nessler 0.2–200 mg/L (segmented) / Salicylic acid 0.025–25 mg/L (segmented)
Nitrate Nitrogen (NO3-N)	Chromotropic acid method; 0.1–100 mg/L (segmented)
Nitrite Nitrogen (NO2-N)	GB 7493-87; 0.005–0.25 mg/L
Total Nitrogen (TN)	HJ 636-2012; 0.5–200 mg/L
Colorimetric Methods	φ16 mm digestion-colorimetric integrated tube; 10 mm, 30 mm, 50 mm optical cuvettes
Operating System	Android 7.1.1 intelligent operating system
Display Screen	10.1-inch color LCD touch screen (1024×768 resolution)
Data Storage	8,000,000 data groups with time-indexed retrieval and Excel export
Communication Ports	USB 2.0, Wi-Fi, Bluetooth, mobile hotspot, RJ45 Ethernet
Printer	Built-in thermal line printer (customizable print items and QR code)
Power Supply	AC 220 V ± 10% / 50 Hz; optional 6 Ah rechargeable lithium battery
Dimensions & Weight	444 × 303 × 173 mm; 5.2 kg

Configuration / Accessories

Standard package includes HM-T4N instrument host, matching reagents, power adapters, colorimetric tubes/cuvettes, and user operation manual.
Optional portable Bluetooth thermal printer or external battery packs according to field testing demands.

Related Models

Part of the comprehensive HM Instruments water quality nitrogen detection series. Users requiring different form factors or parameter configurations may consult companion models in the lineup.

Operation and Support

Select appropriate optical vessels according to concentration range and testing method requirements.
Utilize built-in sample naming and time retrieval functions to organize routine testing records and export data via USB drive.
Follow standard reagent storage instructions and clean optical chambers regularly with lint-free wipes.