The Tenmars TM-380 is a handheld indoor air quality monitor that shows CO2 (NDIR, 400 to 9999 ppm), PM2.5 and PM10 (laser sensor, 0 to 500 µg/m³), temperature and humidity on one display, with red backlight alarms, 20-log memory and a rechargeable battery.
The Tenmars TM-380 measures and displays five indoor air quality parameters in real time: carbon dioxide (CO2), fine particulate matter PM2.5 and PM10, temperature and relative humidity. It is designed for monitoring indoor air quality in a wide variety of environments.
CO2 is measured with a non-dispersive infrared (NDIR) sensor from 400 to 9999 ppm with 1 ppm resolution, while a laser particulate matter sensor covers PM2.5 and PM10 from 0 to 500 µg/m³. A bandgap temperature sensor (-10 to 50 °C) and a capacitive humidity sensor (1 to 99 %RH) complete the set. The five readings are sampled in 2.5 seconds (0.5 seconds each).
When CO2, PM2.5 or PM10 reaches its alarm setting (1000 ppm, 35 µg/m³ and 75 µg/m³ as listed), the LCD backlight turns red and the related reading flashes. The meter stores 20 manual or automatic logs, runs about 6 hours on its 3.7 V 2000 mAh rechargeable lithium battery and can be powered through its 5 V micro USB port. CO2, temperature and humidity can be adjusted by the user through the calibration settings.
| Manufacturer | TENMARS ELECTRONICS CO., LTD. |
|---|---|
| Model | TM-380 |
| Measured parameters | CO2, PM2.5, PM10, temperature, humidity |
| Ambient temperature for accurate measurement | 18 °C (64 °F) to 28 °C (82 °F) |
| CO2 sensor | Non-dispersive infrared (NDIR) |
| CO2 measuring range | 400 to 9999 ppm |
| CO2 accuracy | ±70 ppm ±3 % of reading (400 to 2000 ppm) |
| CO2 resolution | 1 ppm |
| CO2 response time | 90 % in about 2 minutes |
| PM2.5 sensor | Laser particulate matter sensor |
| PM2.5 measuring range | 0 to 500 µg/m³ |
| PM2.5 accuracy | ±8 µg/m³ (≤50 µg/m³); ±10 % of reading (>50 µg/m³) |
| PM2.5 resolution | 1 µg/m³ |
| PM2.5 response time | <10 seconds |
| PM10 sensor | Laser particulate matter sensor |
| PM10 measuring range | 0 to 500 µg/m³ |
| PM10 accuracy | ±10 µg/m³ (≤50 µg/m³); ±15 % of reading (>50 µg/m³) |
| PM10 resolution | 1 µg/m³ |
| PM10 response time | <10 seconds |
| Temperature sensor | Bandgap temperature sensor |
| Temperature range | -10 to 50 °C (14 to 122 °F) |
| Temperature accuracy | ±1.0 °C / ±1.8 °F (when not charging and 30 minutes after charging) |
| Temperature resolution | 0.1 °C / 0.1 °F (0 to 35 °C / 32 to 95 °F) |
| Temperature response time | About 1 second |
| Humidity sensor | Capacitive humidity sensor |
| Humidity range | 1 to 99 %RH |
| Humidity accuracy | ±5.0 %RH (10 to 90 %RH); ±8.0 %RH (<10 %RH, >90 %RH), no condensation, at 25 °C |
| Humidity resolution | 0.1 %RH |
| Humidity response time | About 4 seconds |
| Sampling time | 2.5 seconds (5 parameters, 0.5 seconds each) |
| Alarm | Red backlight alarm for CO2 / PM2.5 / PM10; setting values CO2 1000 ppm, PM2.5 35 µg/m³, PM10 75 µg/m³ |
| Memory | 20 logs (manual and automatic recording) |
| Auto-record interval | 5 s, 10 s, 5 min, 10 min, 20 min, 30 min, 60 min (default 5 s) |
| Display | LCD with backlight, display size 52 mm (L) × 40 mm (W) |
| Auto power off | After 30 minutes (can be disabled) |
| Battery | 3.7V 2000mAh rechargeable lithium battery |
| Battery life | Approximately 6 hours of continuous use |
| Charging / external power | Transformer for charging 1A/5V; 5V micro USB interface for external power supply |
| Operating conditions | 0 °C to +50 °C, <80 %RH (no condensation) |
| Storage conditions | 0 °C to +60 °C, <70 %RH (no condensation) |
| Operating altitude | Up to 2000 m |
| Operating environment | Indoor use; pollution degree 2 |
| Standards | CE; EMC: EN61326-1: CISPR 11: Group 1, Class B |
| Dimensions | 150 × 65 × 22 mm (L × W × H) |
| Weight | 190 g |
Your email address will not published. Required fieled are marked
Other related products explored by visitors
The maximum purchase for this product is () pieces.
العربية
English
