Langder Manuals & User Guides

LANGDER 191-870-99992 Pinpointing Metal Detector User Manual

December 2, 2025

LANGDER 191-870-99992 Pinpointing Metal Detector Specifications Indicators: Proportional audio/vibration pulse rate Control: Power switch Frequency: 10kHz Dimensions: Length - 29.5 cm, Weight - 200g Battery: Single 9V Warranty: One Year,…

Langder DM170 Digital Hygrometer Instruction Manual

May 5, 2025

Langder DM170 Digital Hygrometer Product Description This product is a digital thermo-hygrometer that combines temperature humidity sensors to provide real-time monitoring of Temperature and Humidity on its digital LCD display.…

Langder DM170 Digital Thermo Hygrometer Instruction Manual

May 5, 2025

Langder DM170 Digital Thermo Hygrometer Product Description This product is a digital thermo-hygrometer that combines temperature humidity sensors to provide real-time monitoring of Temperature and Humidity on its digital LCD…

langder Hilitand12xcinvypd Detector With Time and Date Display Instruction Manual

May 2, 2025

langder Hilitand12xcinvypd Detector With Time and Date Display Instruction Manual Protect Your Air This product is an advanced Oxygen Detector provide real-time monitoring of Oxygen (O2), Temperature, Humidity and Time…

Langder DM306B Air Quality Monitor Instruction Manual

February 26, 2025

Langder DM306B Air Quality Monitor Product Information Specifications: Particulate Matter Detection: PM2.5/1.0/10 Gas Detection: Formaldehyde (HCHO), Total Volatile Organic Compounds (TVOC) Additional Measurements: Air Quality Index (AQI), Temperature, Humidity Display:…

Langder DM502-O3 Air Quality Monitor Instruction Manual

January 11, 2025

Langder DM502-O3 Air Quality Monitor Product Description This product is a multifunctional air quality detector that detects Ozone( O3), Total Volatile Organic Compounds (TVOC), Particulate Matter <2.5 micron-sized particles (PM2.5/1.0/10),…

Langder 830 CO2 Monitor Instruction Manual

January 1, 2025

Langder 830 CO2 Monitor Specifications PM2.5 Detection Range: 0-999 ug/m3 Temperature Measurement Range: 0 - 999 ug/m3 Humidity Range: 20% - 85% Resolution: 1 ug/m3 Measurement Accuracy: 1% Product Usage Instructions…

Langder DM236 Metal Detector User Manual

December 20, 2024

Langder DM236 Metal Detector Product Information Specifications Model: V1-2024-11-236A Detection Distance: 0-60 mm Features: Waterproof with high sensitivity No adjustment required 9V battery can operate continuously for over 40 hours…

Langder dm105 Ozone Meter Instruction Manual

November 25, 2024

Langder dm105 Ozone Meter Product Description This advanced detector integrates ozone concentration, temperature, and humidity detection, using advanced sensors to ensure accurate measurement of ozone concentration to tiny units. Whether…

Langder 24-03-V1-7800 Air Negative oxygen Ion Detector Instruction Manual

October 13, 2024

Langder 24-03-V1-7800 Air Negative oxygen Ion Detector Specifications: Product Name: Air Negative (Oxygen) Ion Detector Model Number: 24-03-V1-7800 Features: High precision, accurate measurement, high sensitivity, strong environmental adaptability, long continuous…

Langder 24-09-DM509M Air Quality Monitor: Instruction Manual & User Guide

Instruction Manual

Detailed instruction manual for the Langder 24-09-DM509M 10-in-1 Air Quality Monitor. Covers setup, operation, system settings, data export, parameters, and specifications for monitoring CO2, PM2.5, HCHO, TVOC, temperature, and humidity.

DM72B Air Quality Monitor Instruction Manual - CO2, PM2.5, TVOC, HCHO Detection

Instruction Manual

Comprehensive instruction manual for the DM72B Air Quality Monitor. Learn how to use its features, understand readings for CO2, PM2.5, TVOC, HCHO, temperature, and humidity, and interpret air quality levels.