SPD207/HCHO Gas Detector

This product uses pumping method to detect the concentration of formaldehyde gas，adopting a 16-bit MCU chip with a built-in 12-bit AD converter, with accurate environmental temperature detection and display.

Specifications:

1. Measurement display: 4-digit LCD digital display with backlight

2. Operating temperature: 0~40℃ (32~104℉)

3. Storage temperature: -10~50℃ (14~122℉)

4. Operating humidity: 15~80%RH (relative humidity,non-condensing)

5. Storage humidity: 15%~80% RH (relative humidity, non-condensing)

6. Concentration unit: ppm (volume concentration), mg/m³ (mass concentration)

7. Measuring range: 0~4.00ppm (0~5.00mg/m³) (1ppm =1.25mg/m³ under one atmosphere)

8. Resolution: 0.01ppm (0.01 mg/m³)

9. Accuracy: ±10%

10. Pump sampling time: 30 seconds

11. Sensor response time: <20 seconds

12. Calibration gas: customized standard gas

13. Over-range display: --OL--

14. Alarm mode: sound and light alarm (when the alarm value is exceeded, sound and red backlight will warn at the same time)

15. Sensor principle: electrochemistry

16. Sampling method: pump suction

17. Power supply: 4x3.7 lithium iron phosphate battery

18. Size: 235x74x40mm