Detection gas：Methane
Sensor type:semiconductor series
Response time:≤10 s
Recovery time:≤10 s
Dimensions:32×25×24mm
Product Introduction：The SM01-CH4A methane sensor module adopts semiconductor sensors and has the basic functions of a household gas leak alarm; it provides digital signals and status indications output by UART, switch signals output by buzzers, relays, and solenoid valves, and supports alarm values. reset.
| The main parameters | Parameter value |
| Product number | SM01-CH4A |
| Detection gas | Methane |
| Sensor type | Semiconductor series |
| Response time | ≤10 s |
| Recovery Time | ≤10 s |
| Operating Voltage | DC 4.8V～5.3V |
| Working current | ≤200mA |
| Measuring range | 0～10000PPM/0～20％LEL |
| Resolution | 100PPM |
| Alarm value | Adjustable (default 4000PPM) |
| Precision | 20℃±2℃；55%±5%RH ±3％ LEL |
| Life expectancy | More than 5 years |
| Product standard | GB 15322.2 |
| Interface Type | National standard GB 15322.2 1. 8pin pitch 2.0mm pin header, on the opposite side 7pin 2.0mm pin header 2. 8PIN connector with a pitch of 1.25mm (no welding by default) |
Working environment | Temperature: -10 ～ 55 ℃ Humidity: 20% ～ 90% RH |
Storage environment | Temperature: -20 ～ 60 ℃ Humidity: 20% ～ 65% RH |
| Dimensions | 32mm×25mm×24mm（L×W×H） |
| Pin No. | Name | Functions |
| 1 | VCC | 5V module power input |
| 2 | GND | Reference place |
| 3 | CTL1 | Control output 1: 1.in no alarm and fault state, continuous low level. 2. In the alarm state, keep high level. |
| 4 | RXD | Serial RXD data receiving pin |
| 5 | TXD | Serial TXD data sending pin |
| 6 | CTL2 | Control output 2: 1.When there is no alarm and failure state, continuous low level. 2. In the alarm state, keep high level. |
| 7 | CTL3 | Control output 3, buzzer control: high level buzzer |
| 8 | CTL4 | Control output 4, fault light control: high level is on, low level is of |
| 9 | VDD | Module 3.3V output, output current <100mA |
| 10 | IO1 | Alarm light control port: high level lights up, low level lights off |
| 11 | IO2 | Power light control port: high level lights up, low level lights off |
| 12 | IO3 | Self-check button input port: low-level button is valid |
| 13 | IO4 | Reserve |
| 14 | IO5 | Reserve |
| 15 | IO6 | NC (Keep floating) |
| Order online |
| 【amazon】：https://www.amazon.co.uk/dp/B09JNPS2XK |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| 产品 型号 | Detection gas | sensor type | Response time | Recovery Time | Interface Type | Dimensions | Features | 技术 手册 | 样品 购买 |
|---|---|---|---|---|---|---|---|---|---|
| SM01-CH4A | Methane | Semiconductor series | ≤10 s | ≤10 s | 1. 8pin 2.0mm pitch pin header, 7pin 2.0mm pin header on the opposite side; 2. 1.25mm 8PIN connector pitch (not soldered by default) | 32×25×24mm | Small size and fast response speed |
产品型号：SM01-CH4A
Detection gas :Methane
sensor type :Semiconductor series
Response time :≤10 s
Recovery Time :≤10 s
Interface Type :1. 8pin 2.0mm pitch pin header, 7pin 2.0mm pin header on the opposite side; 2. 1.25mm 8PIN connector pitch (not soldered by default)
Dimensions :32×25×24mm
Features:Small size and fast response speed
