The SMD1002 ammonia sensor is a semiconductor gas sensor developed by MEMS technology and can be used to detect the methane gas content in different scenarios.
The ammonia gas sensitive material and sensing electrodes are developed and made by IDM independently. When the sensitive material is exposed to methane gas, the conductivity of the sensitive material will change. A specific circuit can be used to convert the conductivity change into an output voltage signal corresponding to the gas concentration.
Widely used in chemical safety, public health, agricultural breeding, portable detector and other application scenarios of ammonia testing
Small size
Low power consumption
High sensitivity
Fast response and recovery time
Long life time
| Product Number | SMD1002 | |||
| Standard Package | Ceramic Package | |||
| Target Gas | Ammonia(NH3) | |||
| Measurement Rang | 0 ～ 300ppm methane? | |||
| Resolution | 1 ppm | |||
| Standard Electrical Parameters | Sensor Voltage | V C | ≤5 V or 3.3V DC | |
| Heating Voltage | V H | 1.8 ±0.05 V DC | ||
| Load Resistance | R? | Adjustable (subject to delivery report) | ||
| Gas Sensor Characteristics Under standard Test Conditions | Heater Resistance | R H | 50 ± 5 Ω ( measured at room temperature ) | |
| Heating Power consumption | P H | ≤36 mW | ||
| Sensor Resistance | R S | 500 ~ 3000 KΩ | ||
| Sensitivity | S | R 0 (in air)/Rs (in 10ppm ammonia ) ≥ 1.5 | ||
| Response Ratio | α | ≤ 0.8 (R 50ppm / R 10 ppm methane) | ||
| Standard Test Conditions | Temperature Humidity | 20±2℃ 55±5%RH | ||
| Preheat Time | ≥ 30 min | |||
| Response Time (T 90 ) | < 60 s | |||
| Recovery Time (T 10 ) | < 120 s | |||
| Life Time | ≥ 3 years | |||
USD