HM-SXT2 Portable Turbidity Meter

Product Introduction

The HM-SXT2 is a portable turbidity meter developed by HM Instruments for rapid on-site and laboratory measurement of water turbidity. Turbidity is a critical water quality indicator reflecting the concentration of suspended particulate matter, directly affecting water's visual clarity and safety. The instrument employs a single-wavelength 860 nm scattered light measurement method that effectively minimizes interference from water coloration, ensuring accurate and reliable results across diverse sample types.

At the core of the HM-SXT2 is a scatter-transmission composite detection system. In the low-to-medium turbidity range, the high-sensitivity scattered light mode delivers precise readings. When high turbidity signals are detected, the system automatically and seamlessly switches to transmitted light mode, measuring turbidity through light attenuation analysis. This dual-mode approach significantly extends the measurable range to 0–4000 NTU while maintaining accuracy throughout.

Built on the Android operating system with a 4.3-inch HD touchscreen, the HM-SXT2 offers intuitive graphical operation and bilingual Chinese/English interface. The imported LED light source requires no warm-up and provides long-term stability, while the 10 mm × 10 mm large photocell ensures high sensitivity and a low detection limit. With 16 GB of internal storage, Wi-Fi, Bluetooth, and USB connectivity, the instrument supports comprehensive data management for field and lab workflows. Learn more about how to choose a portable turbidity meter for your specific water quality application.

Applications

• Environmental water monitoring: rivers, lakes, reservoirs, and groundwater
• Drinking water treatment: raw water, process water, finished water, and distribution network monitoring
• Wastewater treatment: influent and effluent quality assessment, aeration tank and sedimentation tank process control
• Industrial production: food and beverage, pharmaceutical, semiconductor, and power industry process water
• Aquaculture: turbidity monitoring of aquaculture water bodies
• Research and emergency response: field sampling and rapid screening of water pollution incidents

Functional Performance and Features

1. Scatter-transmission dual-mode detection with automatic switching ensures high accuracy across the full 0–4000 NTU range
2. 860 nm LED light source requires no warm-up and delivers long-term stable performance without color interference
3. 10 mm × 10 mm large photocell provides high sensitivity and low detection limit for trace turbidity measurement
4. Android operating system with 4.3-inch HD touchscreen and visual graphical interface for efficient, user-friendly operation
5. 16 GB internal storage capable of saving over 10,000 records with optional Bluetooth printer for on-site result printing
6. Wi-Fi, Bluetooth, and USB connectivity enable direct PC batch upload for efficient data management
7. IP65 waterproof body with detection chamber protecting against 0.5 ml liquid intrusion for harsh field environments
8. USB-C 5V 2.1A charging with BC2.1 protocol, compatible with third-party chargers and power banks for extended field use
9. Average measurement mode with automatic range switching for optimized accuracy at different turbidity levels
10. Multi-unit display: NTU (default), FAU, FNU, FTU, EBC, and ASBC selectable for diverse application standards
11. Continuous multi-point turbidity calibration, zero-point calibration, and built-in standard support for flexible calibration workflows
12. Chinese/English bilingual operating system for international and domestic user convenience

Main Parameters

Parameter	Value
Product Model	HM-SXT2
Measurement Method	Scatter + Transmission (auto switch)
Light Source	LED, 860 nm
Measurement Range	0–4000 NTU
Resolution	0.001 NTU
Indication Error	±6%
Repeatability	≤0.5%
Protection Rating	IP65
Operating Temperature	5–40°C
Operating Humidity	<85%
Battery Capacity	8000 mAh
Dimensions	246 mm × 59.4 mm × 84 mm (L×W×H)
Weight	0.59 kg

Technical Parameters

Parameter	Specification
Measurement Method	Scatter method + Transmission method (automatic switching)
Light Source	LED
Light Source Wavelength	860 nm
Measurement Range	0–4000 NTU
Resolution	0.001 NTU
Indication Error	±6%
Repeatability	≤0.5%
Zero Drift	±0.5% FS / 30 min
Indication Stability	±0.5% FS / 30 min
Protection Rating	IP65
Operating Environment	Temperature 5–40°C; Humidity <85%
Power Supply	USB-C 5V 2.1A, supports BC2.1 protocol
Battery Capacity	8000 mAh
Dimensions	246 mm × 59.4 mm × 84 mm (L×W×H)
Weight	0.59 kg
Display Units	NTU, FAU, FNU, FTU, EBC, ASBC
Internal Storage	16 GB, >10,000 records
Connectivity	Wi-Fi, Bluetooth, USB
Operating System	Android, Chinese/English bilingual
Display	4.3-inch HD touchscreen
Applicable Standards	HJ 1075-2019, ISO 7027, JJG 880-2006, GB 5749, CJ 3020, GB/T 14848

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