Important Safety Information
Read all safety warnings and instructions carefully before using this device. Failure to follow these instructions may result in inaccurate readings, device damage, or personal injury.
- Do not expose the device to extreme temperatures, humidity, or corrosive environments.
- Avoid strong impacts or vibrations.
- Do not attempt to disassemble or modify the device.
- Ensure proper ventilation when measuring ammonia levels, especially in enclosed spaces.
- This device is for informational and monitoring purposes. Always follow local safety regulations and use appropriate personal protective equipment when dealing with hazardous gas concentrations.

Image: Effects of Ammonia Concentration on the Human Body. This chart illustrates the potential health impacts at various NH3 levels.
Ammonia Exposure Risks:
- 5 ppm: Odor threshold; detectable by some people.
- 20 ppm: Noticeable irritation to most people; generally harmless.
- 20-30 ppm: Time-Weighted Average (TWA) safety threshold.
- 100 ppm: Causes discomfort to most people; harmless.
- 250 ppm: Irritates nose, throat, and eyes.
- 400 ppm: Causes eye pain and tearing within 30 minutes.
- 700 ppm: Maximum tolerable limit; should not remain in this environment.
- 2500 ppm: Causes severe coughing, irritation of nose and throat; may lead to death within 15 minutes.
Product Overview
The AIOMEST AI-9000B is a handheld ammonia (NH3) gas detector designed for professional and accurate monitoring of ammonia levels, temperature, and humidity. It features an electrochemical sensor for precise and rapid detection, making it suitable for various applications such as poultry farms, livestock facilities, cold storage, chemical plants, mines, and laboratory research.

Image: Front and back view of the AIOMEST AI-9000B Ammonia Gas Detector.
Key Features
- Professional and Accurate NH3 Gas Detection: Equipped with a sensitive electrochemical sensor, detecting ammonia gas from 0-100 PPM with 0.1 PPM resolution and ≤±5% error.
- Real-Time NH3, Temperature & Humidity Monitor: Displays current ammonia levels, peak values, temperature, and relative humidity (RH%) simultaneously.
- Portable Design with Data Logging: Weighs 320g, sized for handheld use, with a 900mAh battery for extended outdoor use. Stores up to 180 sets of data (one reading per minute).
- NH3 Air Alarms: Supports customizable high/low NH3 concentration alerts with sound, light, and vibration warnings. Includes programmable shutdown.
- Multi-Language Support: Switch between English, Chinese, French, and German interfaces.
- Customizable Screen Brightness: For clear viewing in various lighting conditions.

Image: AIOMEST AI-9000B in an industrial setting, emphasizing its precise electrochemical sensor and key performance specifications.
Package Contents
- AIOMEST AI-9000B Ammonia Gas Detector
- USB Charging Cable
- User Manual
- Small Screwdriver (for battery installation)
Device Layout and Display
Device Components

Image: The AIOMEST AI-9000B featuring a multi-function clip for portability, shown attached to a belt.
LCD Display Information

Image: Large LCD display of the AIOMEST AI-9000B, detailing each indicator.
- Current Date: Displays the current date.
- Current Time: Displays the current time.
- Battery Power Indicator: Shows the remaining battery level.
- Ammonia Concentration: Displays the real-time NH3 gas level.
- Ammonia Gas Unit: Indicates the unit of measurement (PPM).
- Ammonia Status: Shows the current status (e.g., Normal).
- Maximum Value: Displays the peak ammonia concentration detected.
- Maximum Value Unit: Indicates the unit for the maximum value (PPM).
- Temperature: Displays the ambient temperature.
- Humidity: Displays the relative humidity (RH%).
Setup
Battery Installation
To protect the rechargeable battery during shipping, the battery cable is disconnected. Please follow these steps to connect it before using the device for the first time:
- Use the small screwdriver to unscrew the battery cover on the back of the device.
- Connect the battery line interface securely.
- Tighten the battery cover back into place.

Image: Step-by-step instructions for battery cable connection.
Charging the Device
Connect the device to a USB power source using the provided USB charging cable. The battery icon on the display will flash while charging and will remain solid when the battery is fully charged.
Operating Instructions
Power On/Off
Press and hold the OK/ENT button to turn the device on or off.
Ammonia Gas Detection
The device automatically begins detecting ammonia gas upon power-on. The current NH3 concentration will be displayed in PPM on the main screen.
Temperature and Humidity Monitoring
The current ambient temperature and relative humidity (RH%) are displayed simultaneously with the ammonia levels on the LCD screen.
Data Logging
The AI-9000B features data logging capabilities, storing up to 180 sets of data. It records one data point per minute automatically, with each entry timestamped for easy anomaly tracking. Access logged data through the device's menu.

Image: Data logging interface showing options for recording and reviewing historical data.
Alarm Settings
The device supports customizable high and low NH3 concentration alerts. When ammonia levels exceed or fall below the set thresholds, the device will activate a triple alert system: sound, light, and vibration warnings. Adjust alarm thresholds via the menu.

Image: The AIOMEST AI-9000B demonstrating its alarm system in a farm environment.
Language Settings
The device supports multiple languages including English, Chinese, French, and German. Navigate to the system settings menu to select your preferred language.
Screen Brightness
Adjust screen brightness through the device's menu settings for optimal viewing in various lighting conditions, from bright sunlight to dim warehouses.
Auto Shutdown
The programmable shutdown feature allows you to set an automatic power-off time to conserve battery life. This is particularly useful for extended monitoring periods without constant supervision.
Maintenance
Cleaning
Wipe the device exterior with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
Storage
Store the device in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Remove the battery if storing for extended periods.
Sensor Care
The electrochemical sensor is a precision component. Avoid exposing it to harsh chemicals, dust, or physical impact. For sustained accuracy, periodic calibration may be required. Consult AIOMEST customer support for calibration services.
Specifications
| Feature | Specification |
|---|---|
| Brand | AIOMEST |
| Model | AI-9000B |
| Detection Gas | Ammonia (NH3) |
| Detection Range | 0-100 PPM |
| Resolution | 0.1 PPM |
| Accuracy | ≤±5% |
| Response Time | <120 seconds |
| Recovery Time | <240 seconds |
| Sensor Type | Electrochemical |
| Battery | 900mAh Rechargeable |
| Data Logging | Up to 180 sets (1 data point per minute) |
| Alarms | Sound, Light, Vibration (customizable high/low thresholds) |
| Display | Large LCD with adjustable brightness |
| Dimensions | 7.48 x 3.74 x 1.69 inches |
| Weight | 320g |
| Supported Languages | English, Chinese, French, German |
Warranty and Support
Warranty Information
This AIOMEST AI-9000B device comes with a 365-day quality warranty from the date of purchase. Please retain your proof of purchase for any warranty claims. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.
Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact AIOMEST customer support. You can typically find contact information on the official AIOMEST website or through the retailer where you purchased the product.