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๐ก Key Summary: A waterproof wireless leak alarm transmitter that reliably sends alerts even in outdoor environments
YH-RF400L TX is a waterproof wireless leak alarm transmitter for outdoor use, designed for harsh field conditions around outdoor tanks, piping, and equipment. It transmits alarm signals wirelessly without cabling when a connected leak detector (sensor) triggers an alarm, enabling rapid alarm system deployment in outdoor areas where wiring is difficult. In addition, the transmitter itself provides on-site indication with a warning lamp and audible buzzer, helping operators respond faster. Optional configurations (warning beacon / explosion-proof options, etc.) are available to match site requirements.
โ Waterproof housing for outdoor use: Designed for rain, snow, and humidity to ensure stable operation in outdoor installation conditions.
โ Wireless alarm transmission: Sends alarm signals wirelessly when a leak occurs, making installation and expansion easy in outdoor areas where wiring is difficult.
โ Built-in on-site alarm (lamp & buzzer): Along with transmission to the receiver, the transmitter activates its own warning lamp and buzzer for fast on-site verification and initial response.
โ Sensitivity adjustment: Detection sensitivity can be adjusted to suit site conditions, helping reduce false alarms and improve reliability.
โ Multi-channel options: Available in 1 to 4 channels so you can select the right configuration based on site scale.
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| Item | Specification |
| Model | YH-RF400L TX (Waterproof Wireless Leak Alarm Transmitter) |
| Power Supply | AC 220V 60Hz |
| Power Consumption | Max 20W |
| Power Indicator | Yellow lamp ON (Power ON) |
| Alarm Indicator | Red lamp ON (Alarm Activation) |
| Operating Temp / Humidity | -20 โ 60ยฐC / 0 โ 80% RH |
| Buzzer Sound | 70 dB or higher (at 1 m) |
| Frequency | โข 447.8625 to 447.9875 MHz BAND (Data Transmission / 11 Channels) โข 447.2625 to 447.5625 MHz BAND (Safety System / 25 Channels) |
| Receiver Sensitivity | -117 dBm (Transmit Power: +10 dBm) |
| Transmission Range | 1,000 m or more (Line of Sight, 100% receive success, 4,800 bps) |
| Antenna | SMA TYPE ANTENNA (External) |
| Channels | 1 โ 4 CH |
| Dimensions | Enclosure: 316(W) ร 416(H) ร 150(D) mm Height including beacon: 543 mm Width including side projections: 376 mm Common to 1โ4-channel models / Antenna excluded |
โฃ Dimensions may vary depending on options (Explosion-proof / Warning beacon). (Antenna size excluded)
Product Datasheet
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YH-RF400L TX Outline Drawing
4-channel configuration shown. Dimensions apply to all 1โ4-channel models.
| Item | Dimension (mm) |
|---|---|
| Enclosure width (W) | 316 |
| Enclosure height (H) | 416 |
| Depth (D) | 150 |
| Beacon height | 127 |
| Height including beacon | 543 |
| Left and right projections | 30 each |
| Width including side projections | 376 |
Note: Beacon height and overall height including the beacon are based on the configuration shown in the outline drawing.
Note: Dimensions may vary with explosion-proof and warning beacon options. Antenna dimensions are excluded.
Note: External dimensions may change without prior notice as part of product improvements.
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[ 105 dB High-Output Warning Beacon ] |
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