The 721 offers 10ppm sensitivity to detect combustible gasses. Easily operated with one hand, leaks are pinpointed using the audio and visual indicators. An adjustable "tic" rate helps eliminate background gas concentration in contaminated environments. Combustible Gas Leak Detector capable of displaying real ppm, stepped ppm, and percent LEL (lower explosive limit). 10ppm sensitivity (methane). Detect combustible gases including natural gas, propane, butane, etc. Thumbwheel adjustable tic rate to locate leaks quickly and accurately. Two line display with bargraph and backlight. Audio/visual alarm indication with user adjustable alarm point. Earphone jack for use in noisy environments. Approximately 20 hours of continuous use (C cell alkaline batteries x 2). Low power semiconductor sensor. Leak detection sensitivity (methane): 10ppm. Display type: dual display with analog bargraph and backlight. Display modes: real (ppm), leak level (stepped ppm), percent LEL. Real ppm range: 0 to 9999ppm. Stepped ppm range: 0, 500, 1000, 3000, 5000, 9999ppm. Percent LEL range: 0 to 19.9 percent. Audible leak indication: adjustable tic rate via side thumb wheel. Sensor test and zero: automatic at start up. Goose neck: 16" long with visual alarm indicator in sensor housing. RoHS Compliant. UL Listed. CE Approved. Measures 74mm width by 240mm height by 55mm depth.
R**Y
Good gas detector
This was very useful when we had some leaks in the natural gas supply to our stove & oven.I ended up turning the ticking noise off, as it was very loud and wasn't intuitive to me on how to use it to help pinpoint the leaks. I expected it to change from a slow ticking to a fast ticking based on proximity to the leak, but the ticking seemed to be fast all the time, and adjusting the thumb-wheel seemed to only make it even faster, not slower. Maybe I was doing something wrong - I don't have prior experience with these kind of detectors. But watching the numbers on the display, along with the red warning light, provided all the information needed.It came with batteries, and the batteries were even pre-installed. This gives me the favorable impression that the detector was hand-tested to verify it worked, before being shipped out.
M**M
Too sensitive.
The ppm reading is highly innaccurate. Highly sensitive, sounds like the worlds going to explode when a soap test barely registers. Eats batteries faster than Robinson Crusoe at a buffet.
G**G
Five Stars
Perfect thanks
A**R
Five Stars
excelente
A**L
Sensitive and easy to use
Very good product with high sensitivity and ease of use.
Trustpilot
1 day ago
2 months ago
