Shopping security
The Uni-T UT661D is a pipe blockage detector designed for quickly locating blockages in pipes without the need to dismantle the system. The device works with both plastic and metal pipes, and the 35-meter signal cable allows for inspection of longer sections. A maximum detection depth of up to 50 cm allows for effective blockage detection even in hard-to-reach areas. The kit consists of a transmitter and receiver that help precisely pinpoint the location of the problem, while audible and visual alerts facilitate quick identification of the blockage.

The device is equipped with an IP67-rated probe, which increases its durability and safety when operating in demanding environments. A low-battery indicator and a loud audible signal improve user comfort during diagnostics. The transmitter and receiver use built-in 3.7 V lithium-ion batteries with a capacity of 1800 mAh, providing up to 10 hours of operation on a single charge. With an operating temperature range of -20°C to 60°C, plus the included charging cable and probe kit, the UT661D is ready for use both in the field and during daily maintenance tasks.

| Manufacturer | Uni-T |
|---|---|
| Model | UT661D |
| Type | Pipe blockage detector |
| Transmitter | Yes |
| Receiver | Yes |
| Signal cable | 35 m |
| Maximum detection depth | 50 cm |
| Pipe materials | Plastic, metal |
| Audible signal | Yes |
| Visual signal | Yes |
| Low battery indicator | Yes |
| Probe waterproof rating | IP67 |
| Transmitter current (off) | <2 µA |
| Transmitter operating current | 230–310 mA |
| Receiver current (off) | <2 µA |
| Receiver standby current | <40 mA |
| Maximum receiver operating current | 150–450 mA |
| Charging current | 450–550 mA |
| Sound output test at 1 cm | 93 dB |
| Sound output test at 0.5 m | 75 dB |
| Battery life | 10 hours |
| Operating temperature | -20°C~60°C |
| Operating humidity | 10~80% RH |
| Transmitter battery | Built-in 3.7V 1800mAh lithium battery |
| Receiver battery | Built-in 3.7V 1800mAh lithium battery |
| Color | Red and gray |
| Transmitter weight | 1.42 kg |
| Receiver weight | 0.26 kg |
| Transmitter dimensions | 38 x 30 x 42 mm |
| Receiver dimensions | 40 x 38 x 80 mm |
| Certifications | CE, RoHS |
Ships within 48 hours · Estimated delivery Jun 26 - Jul 1
US$40
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