| Detection Gas | Ammonia in the air |
| Detection Principle | Principle of electrochemistry |
| Measuring Range | 0 to 10 ppm, 0 to 20 ppm, 0 to 50 ppm, 0 to 100ppm, 0 to 200 ppm optional |
| Resolution | 0.01 ppm (0 to 100 ppm); 0.1 ppm (0 to 1000 ppm); 1 ppm (1000 ppm or more) |
| Support Sensor | Catalytic combustion sensor, electrochemical sensor any combination, flexible configuration |
| Combination Method | Single, two-in-one, three-in-one, four-in-one optional (one flammable gas sensor in four-in-one) Two-in-one sensor can be turned on or off independently to avoid gas interference and prolong sensor life. |
| Sampling Method | Diffusion detection method |
| Indication Error | ≤ ± 3% FS (more precise requirements depending on sensor performance) |
| Repetitive | ≤ ± 1% |
| Zero drift | ≤ ± 1% (FS or year) |
| Response Time | ≤ 30 seconds (T90), (higher requirements depending on sensor performance) |
| Recovery Time | ≤ 30 seconds (higher requirements depending on sensor performance) |
| Shell Material | High-strength wear-resistant polycarbonate casing |
| Battery | Rechargeable lithium battery 2000 mAh, support mobile power supply and charging |
| Charger | USB high current 5 V 2.1 A fast charger, compatible with universal USB mobile phone charger |
| Alarm Mode | Audible alarm 95 dB at 11.8 in (30 cm), vibration alarm, red LED warning light |
| Alarm Point Setting | A1 alarm value, A2 alarm value; TWA alarm value, STEL alarm value can be set separately |
| Display | 2.3 in TFT large color screen |
| Button | 4 button navigation |
| Direct Reading | Measured value, data record status, maximum, minimum, average |
| Data Record | Automatically store data, storage interval can be customized, can continuously store 300,000 groups of data with date and time |
| Data Download | Support USB measurement data download; |
| Data Printing | Support for mini portable printer Bluetooth wireless printing (optional) |
| Calibration | Level 2 to 4 target point calibration function, can set calibration value, one key zero adjustment |
| Explosion-Proof Grade | Ex ia IIC T4 Ga (intrinsically safe) |
| Protection Level | IP65 |
| Operating Mode | User mode, administrator mode, two operating modes are available |
| Operating Temperature | -4 °F to 122 °F (-20 ℃ to 50 ℃) |
| Working Humidity | 0 to 95% relative humidity (non-condensing) |
| Executive Standard | GB 12358-2006, GB 3836.1-2010, GB 3836.4-2010 |
| Size | Length 2.59 in x 4.72 in x 1.18 in (66 mm x 120 mm x 30 mm) |
| Weight | About 0.26 lb. to 0.39 lb. (0.12 kg to 0.18 kg) |
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