Key Features & Product Highlights:
● Supports network-based remote transmission, monitoring and control;
● Bilingual interface (Chinese & English) with intuitive and comprehensive menu navigation;
● Provides three calibration modes (automatic/manual) with manual or automatic temperature compensation;
● Equipped with password protection and key combination access for enhanced operational security;
● Features automatic alarm notification with signal feedback upload;
● Built-in real-time clock and historical data storage (up to 1,000,000 records);
● Supports data export via Micro SD card;
● Enables Bluetooth wireless communication and portable printer connection;
● Outputs include dual 4–20mA analog signals, one Modbus RS485, and one RS232 interface;
Bluetooth Printing pH/ORP Controller for Industrial Wastewater
The UNI-5500 pH/ORP Meter delivers precise industrial water monitoring with 1 million data storage, MicroSD export, and Bluetooth connectivity for printers and mobile devices.
● 4.3″ HD Color Display: Clear, full-view LCD for intuitive operation
● Multiple Outputs: RS485 (Modbus RTU), dual 4–20 mA, and relay control
● 1M Data Logging: Large storage with easy MicroSD export
● Bluetooth Connectivity: Seamless connection to printers and mobile devices
Industrial pH/ORP Analyzer Description
The Lootest UNI-5500 Bluetooth Printing pH/ORP Controller delivers reliable real-time data for chemical and wastewater processes, engineered for precise electrochemical monitoring. This intelligent analyzer utilizes a high-performance ST CPU to process signals from specialized pH or ORP sensors with full temperature compensation. Designed for bulk dealers and engineering agencies, the unit simplifies data auditing via its massive 1,000,000-point memory and Micro SD export capabilities. By integrating Bluetooth connectivity, the UNI-5500 allows for instant report generation, making it an essential digital tool for modern water treatment plants seeking high-stability, factory-direct instrumentation.
UNI-5500 pH/ORP Transmitter Technical Data Sheet
| Product Model | UNI-5500 PH/ORP |
| Display | 4.3 Inch LCD Color Display |
| Measurement Range | pH: 0–14 pH, ORP: -2000 to +2000 mV |
| Measurement Accuracy | pH: ±0.1 pH, ORP: ±5 mV, Temperature: ±0.5°C |
| Resolution | pH: 0.001/0.01 pH; ORP: 1 mV |
| Isolated Output Current | 4–20 mA (Load Resistance < 800Ω) |
| Communication Interface | RS-485 Modbus Standard Communication Protocol |
| Dual Relay Contacts | 3A 240VAC, 6A 28VDC Or 120VAC |
| Power Supply | 85–260VAC 50–60Hz Or 24VDC |
| Power Consumption | ≤3W |
| Weight | 0.82 kg |
| Dimensions | 180 × 157 × 84.5 mm |
| Panel Cutout Size | Panel Mount 138 × 138 mm (Wall Mount Available) |
| Operating Conditions | Temperature 0–45°C, Humidity ≤85%, No Electromagnetic Interference |
| Sensor Selection | Analog Signal And Digital Sensor Compatible |
| Data Function | Data Storage, Operation Log, Bluetooth Printing |
Online pH/ORP Meter Applications
The UNI-5500 pH ORP monitor is the preferred solution for acid-alkali neutralization, cooling water monitoring in power plants, and nutrient control in smart aquaculture. Its high-stability design makes it perfect for corrosive environments in textile dyeing and pharmaceutical manufacturing where constant pH or Redox potential tracking is critical for process compliance.
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