HCHO Range: 0-1.999. 1 x Air Detector. CO2 Range: 0-5000. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls. Easy To Use: This tester is very easy to use, wherever you want to test the air quality, just turn the tester on and put it in that place, then wait for the result.
eBay
Item Type: CO2 Detector. 1 x Detector. CO2 Detection Accuracy: 1PPM. CO2 Detection Range: 400~5000PPM. Humidity Detection Accuracy: ±5%RH. Humidity Detection Range: 0%~99%RH. Temperature Detection Accuracy: ±1℃.
eBay
Detector 1. 4-color alarm system: shows air quality through green, yellow, orange and red colors, and sound prompts when it exceeds the standard. Battery: 1200mAh1 lithium battery. Portable design: compact size does not take up space, easy to carry, suitable for a variety of occasions.
eBay
CO2 Detection Accuracy: 1PPM. CO2 Detection Ranges: 400-6000PPM, ±50±10%PPM. Battery: Built-in 3.7V, 2000mAh Lithium Battery. CO Detection Accuracy: 1PPM. PM2.5 Detection Accuracy: 1ug/m3. 1 Air Quality Monitor.
eBay
Large backlit LCD display, you can clearly see the amount of electricity, CO2, TVOC, HCHO, temperature and humidity. 0 ~ 2.0 mg/m³ (TVOC). 0 ~ 0.6 mg/m³ (HCHO formaldehyde). Sensor: NDIR infrared carbon dioxide sensor / semiconductor sensor.
eBay
🔧 Professional Combustion Leak Tester Kit – Designed to detect combustion gas leaks from cylinder head gaskets, cracked blocks, or warped heads in petrol and diesel engines. 💨 Color Change Detection Fluid – Includes test fluid that changes color from blue to yellow if combustion gases are present in the coolant, providing instant visual results.
eBay
LED Screen: The high-definition LED screen allows you to read data faster and more conveniently. If there is a change in air quality, give the detector 35 seconds to detect the change. In addition, it can also monitor the temperature and humidity in the air.
eBay
Easily integrate with Tuya smart devices to create customized scenes. For instance, link it to a smart widow pusher and, when CO2 reaches a warning level, it automatically opens the window. Temperature and humidity settings also available for a safer, smarter lifestyle.
eBay