





| Technical Specifications | Parameter Details |
| Signal input | 4-20mA or RS485 signal |
| range | According to the detection range of the connected gas detector, each path can be set separately |
| Wireless Communication | Wireless communication transmission (optional) including 4G/5G/NB-IoT/LORA |
| Display method | LCD/LED displays gas concentration, LCD displays detector installation position, and LED lights indicate working status |
| Alarm method | Two stage sound and light alarm, sound ≥ 90dB@30cm |
| Output current | Each channel provides 24-28VDC |
| Connecting to the detector | Three wire system |
| Working power supply | 220VAC 50Hz |
| Backup power supply | 24VDC/33AH可充电电池(选配) |
| power dissipation | ≤5W/Road |
| temperature range | -20℃~+60℃ |
| relative humidity | 0-99% RH/no condensation |
| Installation method | Cabinet and wall mounted |
– Advanced microprocessor technology and communication technology, stable and reliable, with high accuracy.
– Wide screen dot matrix LCD and Chinese menu.
– Modular structure, IO module can be expanded arbitrarily, and a single machine can connect up to 54 detectors, which can display the readings and positions of each detector.
– Strong universality, receiving 4-20mA current signals or RS485 bus inputs.
– Relay switch quantity and RS485 output.
– Two stage sound and light alarms, alarm points can be set.
– Detectors, circuit faults, and power supply undervoltage automatic alarms.
– The main and backup power supplies automatically switch, and the backup point automatically charges.
– Data storage, historical record query (can store 2GB or more)
– Easy to install, easy to operate, and good human-machine interface


The products include gas sensors, gas detectors, gas alarm controllers and monitoring systems, gas analysis and pre-treatment systems,explosion-proof audio-visual alarm, flame detectors, and industrial HSE IoT.
Nuoan’s gas detectors provide instant, accurate alerts, protecting your people and assets 24/7.
Email: sales@nuoan.com
Phone: +86 19928876242
Address: 301, 1401, 1501, 1601, Building C1, No. 459, Qiaokai Road, Fenghuang Community, Fenghuang Street, Guangming District, Shenzhen, China (518107)