| Specifications | UT661D | |
| Transmitter | Yes | |
| Signal wire | 35 meters | |
| Receiver | Yes | |
| Maximum detection distance ( depth ) | 50 cm | |
| Transmitter current | ||
| Shutdown current | < 2 uA | |
| Operating current | 230 to 310 mA | |
| Receiver current | ||
| Shutdown current | < 2 uA | |
| Standby current | < 40 mA | |
| Maximum working current | 450 mA (Distance 1 cm) | |
| Charging current | 450 to 550 mA | |
| Output sound testat a distance | >93dB @ 1 cm | |
| >75dB @ 0.5 m | ||
| Battery duration | 10 hours | |
| Operting temperature and humidity | -20°C to 60°C, 10 to 80%RH | |
| Measurable pipe material | Plastic pipes, metal pipes | |
| Buzzing prompt | Yes | |
| Flash prompt | Yes | |
| Low battery indication | Yes | |
| Waterproof grade | Probe waterproof IP67 | |
| General Characteristics | ||
| Transmitter battery | Built-in lithium battery (3.7V 1800mAh) | |
| Receiver battery | Built-in lithium battery (3.7V 1800mAh) | |
| Color | Red and grey | |
| Weight | ||
| Transmitter | 1.42KG | |
| Receiver | 0.26 KG | |
| External dimension | ||
| Tansmitter | 38 x 30 x 42 mm | |
| Receiver | 40 x 38 x 80 mm | |
| Standard accessories | Charging cable, Probe kit | |
| English manual, Warranty card |
