Products Description
This series of remote-controlled NB-IoT wireless liquid level sensors is a low-power wireless transmission digital pressure transmitter independently developed by our company, which is powered by batteries. This series of remote-controlled NB-IoT wireless liquid level sensors has a variety of wireless transmission modes, including GPRS/LORa/NB-iot. This series of remote-controlled NB-1oT wireless liquid level sensors adopts explosion-proof cast aluminum housing and 304 stainless steel connectors, built-in high-precision liquid level sensors, equipped with LCD liquid crystal display, can measure gas, liquid, oil and other media that are non-corrosive to stainless steel, and has strong medium compatibility.
This series of products has a variety of auxiliary functions such as zeroing, backlight, power on and off, unit switching, low liquid level alarm, etc. This series of products has the functions of settable sensor acquisition speed, settable uploading frequency, settable high and low liquid level alarm values, and instant liquid level alarm. The wireless mathematical liquid level meter with GPRS transmission, relying on China Mobile's mature GPRS network, uploads the on-site pipeline liquid level to the cloud. Users can configure IP addresses and other conventional parameters on-site or remotely. The wireless mathematical liquid level meter with LORa transmission, used with the LORa gateway, has the advantages of low power consumption, long transmission distance, strong signal penetration, and self-organizing network. The wireless mathematical liquid level meter with NB-iot transmission adopts the latest NB-iot technology, with low power consumption, high transmission efficiency, and low tariff.
Product Features
● Low power consumption design, battery powered, ultra-long battery life
● Optional battery power supply: power supply mode
● No wiring construction, easy installation and maintenance
● GPRS/LORa/NB-iot multiple wireless transmission methods optional
● 304 stainless steel housing and connector, 316L stainless steel diaphragm, strong medium compatibility
● 0~500m full range coverage
Product Specification
| Medium | Water, oil |
| Type | Absolute pressure or gauge pressure |
| Scope | 0~300m |
| Accuracy | 0.5%FS, 0.2%FS (optional) |
| Output | 433MHZ, ZigBee, GPRS, GSM, SMS, RS485, 2 Relay output(220V,3A) |
| power supply | 12~36VDC or battery |
| Temperature | -30~60ºC |
| Storage temperature | -40~85ºC |
| Zero drift | ≤±0.05%FS°C |
| Full pressure drift | ≤±0.05%FS°C |
| Temperature compensation | 0~70ºC |
| Overpressure | 200%FS |
| Destruction pressure | 500%FS |
| Response time | ≤2ms |
| load | (Current output)250~1425Ω(votage output)≥2kΩ |
| Seal | IP68 |
| Long term stability | 0.1%FS/Year |
| Shock | 0.1%FS |
Selection
Product Dimensions
Product Features
● Low power consumption design, battery powered, ultra-long battery life
● Optional battery power supply: power supply mode
● No wiring construction, easy installation and maintenance
● GPRS/LORa/NB-iot multiple wireless transmission methods optional
● 304 stainless steel housing and connector, 316L stainless steel diaphragm, strong medium compatibility
● 0~500m full range coverage
Product Dimensions
Product Specification
| Medium | Water, oil |
| Type | Absolute pressure or gauge pressure |
| Scope | 0~300m |
| Accuracy | 0.5%FS, 0.2%FS (optional) |
| Output | 433MHZ, ZigBee, GPRS, GSM, SMS, RS485, 2 Relay output(220V,3A) |
| power supply | 12~36VDC or battery |
| Temperature | -30~60ºC |
| Storage temperature | -40~85ºC |
| Zero drift | ≤±0.05%FS°C |
| Full pressure drift | ≤±0.05%FS°C |
| Temperature compensation | 0~70ºC |
| Overpressure | 200%FS |
| Destruction pressure | 500%FS |
| Response time | ≤2ms |
| load | (Current output)250~1425Ω(votage output)≥2kΩ |
| Seal | IP68 |
| Long term stability | 0.1%FS/Year |
| Shock | 0.1%FS |
Selection
