Product Overview
The SFD-Ex-HAN Portable Multi-Gas Detector is an independently developed intelligent 4-in-1 detection device with high sensitivity and operational reliability. By configuring different precision sensors, the device can accurately detect the concentration of more than 100 types of flammable gases and toxic gases in the working environment.
The detector supports wireless alarm signal transmission, realizing synchronous alarm linkage with all products of the same series. It intuitively displays key information including equipment number, primary and secondary alarm status, and is equipped with dual alarm reminders of buzzer sound and human voice broadcast for comprehensive risk warning.
The device has a powerful local data recording function, which can store up to 1999 event records covering equipment power-on, power-off and alarm events. Core data such as alarm time and gas type are completely retained without loss after power failure, ensuring full data traceability.
Adopting professional low-power processing chip and built-in high-capacity lithium polymer battery, matched with a dedicated smart charger and perfect circuit protection system, the equipment features ultra-long standby and working time, as well as safe and stable operation.
With miniaturized and lightweight design, the detector is easy to carry and operate. It boasts accurate measurement, stable detection values and clear display. The humanized panel layout enables fast and convenient parameter configuration. All setting parameters and alarm records are permanently saved after power outage, and the system setting menu is protected by password to ensure equipment operation security.
The equipment supports wireless mutual transceiving of alarm information to realize networked regional monitoring. It can quickly feedback on-site abnormal gas conditions and issue alarm prompts, effectively eliminating potential safety hazards and avoiding secondary safety disasters.
This portable 4-in-1 detector can be fitted with an air pump: Click to view
Product Features
It adopts imported sensors to detect four types of gases simultaneously. Equipped with a full-color TFT screen, it delivers sharp and clear readings.
The detector supports intelligent temperature compensation and fault alarm indication. It has a wireless retransmission function to realize synchronous alarms among devices within the same area.
Powered by a rechargeable lithium battery, it is lightweight and easy to carry. Pump-sampling accessories are available as an option.
This product has obtained national explosion-proof certification.
Technical Parameters
| Item | Specification |
|---|---|
| Detection Gas | Combustible gases, toxic gases (1~4 sensor types configurable per customer requirements) |
| Detection Method | Diffusion type |
| Detection Range | Customized according to customer requirements |
| Accuracy | ±3% LEL (combustible gases); ±3% FS (toxic gases) |
| Repeatability | 2% |
| Response Time | T90 < 20 s |
| Alarm Sound Level | > 100 dB |
| Alarm Method | Wireless, sound & light |
| Wireless Frequency | 433 MHz |
| Alarm Levels | Two levels |
| Wireless Range | 200 m ~ 500 m |
| Operating Temperature | -40°C ~ 70°C |
| Explosion-proof Certification | Ex ia IIC T4 Ga; Ex da ia IIC T4 Ga |
| Protection Rating | IP66 |
| Ambient Humidity | < 95% RH (no condensation) |
| Pressure Range | 86 ~ 106 kPa |
| Battery Life | Without pump: 20 h (combustible gases), 42 h (toxic gases); with pump: 10 h (combustible gases), 13 h (toxic gases) |
| Power Supply | Lithium polymer battery, DC 3.7V 3300 mAh |
| Display | 1.5-inch full-color TFT |
| Dimensions | 156 mm × 68 mm × 30 mm |
