| Series | Mine Explosion-proof FYF Series |
| Model | FYF20B |
| Size | 240×68×54 mm |
| Weight (excluding battery) | 0.35kg |
| Material | Flame-Retardant Conductive Engineering Plastics |
| Protection Class | IP67 |
| Power Supply | 7.4VDC/1850mAh |
| Wireless Range | ≥20m |
| Operating Current | 80mA |
| Transmit Power | ≤10mW |
| Frequency Range | 433 MHz Band: 427.000–436.300 MHz 470 MHz Band: 472.350–485.775 MHz |
| Antenna Type | built-in |
| Operating Temperature Range | Temperature: -25°C to 70°C Humidity: 0% to 97% RH (non-condensing) |
| Optional Features | Identification Card, 3-Axis Sensor |
| Transmitter Operation Modes | Button-operated |
| Explosion Protection Type | Intrinsically Safe |
| Explosion-proof Mark | Ex ia I Ma |
| Display | 2.5″ |
| Applicable Standards | GB/T 3836.1-2021 *Explosive atmospheres — Part 1: Equipment — General requirements* GB/T 3836.4-2021 *Explosive atmospheres — Part 4: Equipment protected by intrinsic safety “i”* MT/T 1137-2011 *General technical specifications for mining infrared remote controllers* |
| Dimensional Drawing |  |
The Techwell BE100 is a compact industrial remote control transmitter designed for simple crane and hoist operations. With 8 self-resetting pushbuttons, it’s ideal for facilities that need reliable, straightforward wireless control without advanced features like joysticks or displays.
Yes. The BE100 is IP66-rated, meaning it’s protected against dust ingress and powerful water jets, making it suitable for outdoor industrial environments, construction sites, and harsh job site conditions.
The BE100 delivers a stable wireless range of ≥150 meters (492 feet), ensuring reliable industrial wireless remote control performance even in large facilities or open outdoor worksites.
The BE100 is powered by two standard AA dry cell batteries (3V). Thanks to its low standby current (5µA) and average operating current (10mA), it offers extended battery life for daily industrial use without frequent replacements.
The BE100 operates reliably between -25°C and 70°C with humidity up to 97% RH (non-condensing), making it suitable for industrial remote control applications in extreme outdoor climates, cold storage, or high-heat industrial settings.
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