FNIRSI IR40 40m Smart Laser Distance Meter The FNIRSI IR40 is a compact smart laser distance meter for fast length, area, volume, and continuous measurements. With a 0.05m to 40m measuring range, 1mm resolution, and ±2mm-class precision, it is a practical pocket tool for quick indoor measurement work. The IR40 supports m / ft / in unit switching, Bluetooth app linkage, automatic screen flip with a 360° gravity sensor, and fast measurement response from 0.1 to 3 seconds. Its slim 34.5 × 79 × 19mm body is easy to carry in a tool bag, desk drawer, or field kit. For electrical and workshop measurement setups, pair it with the UNI-T UT61E+ Digital Multimeter, UNI-T UT890D+ Digital Multimeter, or FNIRSI DMC-100 Clamp Multimeter. For powered testing and debugging benches, the UNI-T UTP1605S DC Bench Power Supply and FNIRSI 1014D Digital Oscilloscope are useful companion instruments. Technical Specifications Brand FNIRSI Model IR40 Product Type Smart laser rangefinder / laser distance meter Measurement Range 0.05m to 40m Measurement Accuracy ±(2mm + 5×10-5Dmm) Resolution 1mm Measurement Time 0.1 to 3s Laser Class Class II Laser Type 620 to 670nm Measurement Units m / ft / in Measurement Functions Length, area, volume, and continuous measurement Smart Functions Bluetooth app linkage and 360° automatic flip gravity sensor Operating Temperature 0 to 40°C Storage Temperature -20 to 60°C Executive Standard GB7247.1-2012 Product Size 34.5 × 79 × 19mm Integration Notes & Hardware Guidance Use the laser distance meter on a stable target surface for the most consistent readings. Choose the correct unit before recording measurements to avoid conversion errors across m, ft, and in. Bluetooth app linkage is useful when measurements need to be recorded, organized, or referenced later. Reflective, transparent, dark, or uneven surfaces can affect laser measurement stability and should be checked with repeated readings. Do not point the Class II laser at eyes, faces, animals, mirrors, or moving people during measurement. Packing List FNIRSI IR40 smart laser rangefinder × 1 USB charging cable × 1 User manual × 1 Retail package × 1 FAQ What is the maximum measuring distance of the FNIRSI IR40? The IR40 supports measurement from 0.05m to 40m under suitable target and lighting conditions. Can it calculate area and volume? Yes. It supports length, area, volume, and continuous measurement functions. Does the IR40 support app connection? Yes. It supports Bluetooth app linkage for measurement recording and smarter data handling. What measurement units are available? The IR40 supports m, ft, and in unit switching. What should I avoid when using the laser? Avoid pointing the Class II laser at eyes, faces, animals, mirrors, or moving people, and keep the device stable during measurement.
