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Comparison DINGO AT-2000 vs Sititek CA20F

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DINGO AT-2000
Sititek CA20F
DINGO AT-2000Sititek CA20F
Outdated ProductOutdated Product
TOP sellers
Blowingwith mouthpiecewith mouthpiece
Sensorelectrochemicalelectrochemical
Measuring range0 – 4 ‰0 – 4 ‰
Max. error0.05 ‰0.05 ‰
Warm-up time35 с35 с
Blow time4 с3 с
Test time22 с35 с
Anti-deception
Automatic shutdown
Display backlight
Power sourcePP3PP3
Operating temperature5 °C ~ +40 °C
Size125х56х24 mm125х56х24 mm
Weight123 g87 g
Added to E-Catalogaugust 2018july 2018

Blow time

The blowing time is the shortest time during which you need to blow into the device for effective measurement. The shorter this time, the more sensitive and advanced the breathalyzer is, the simpler the measurement procedure and the less time it will take; the fastest modern appliances purge in 3 seconds or less. On the other hand, a short blowing time affects the cost. Therefore, if the device is not planned to be used for mass streaming checks, this parameter can be ignored.

Test time

The time it takes the instrument to test — in other words, the time that elapses between the end of the purge and the display of the final result. This is one of the parameters that determine the performance of the device (along with the warm-up time and purge time, see above). At the same time, we note that it makes sense to specifically look for a device with a short testing time ( 10 s or less) mainly for mass flow checks, when “every second counts” — for example, for pre-trip control of drivers at a large auto enterprise. If we are talking about episodic measurements — for example, individual self-control after "celebrations" once or twice a month — you can get by with a device with a low speed.

Anti-deception

A function that allows the breathalyzer to automatically control the correctness of the measurement procedure. To do this, the device analyzes the volume of actually exhaled air, and if this volume is not enough for effective analysis, it reports that the measurement needs to be repeated. As the name implies, the main purpose of anti- cheating is to prevent measurement manipulation, when the test person tries to artificially lower the readings by “blowing out” an insufficient amount of air. Although, of course, this function will be useful if the user violates the procedure unintentionally.

Operating temperature

The range of air temperatures at which the breathalyzer is able to work correctly. Note that if the device goes beyond this range, the device will not necessarily fail, but there is no need to talk about the accuracy of measurements in such a situation. This parameter is especially important for models with semiconductor sensors (see "Sensor") — the correct operation of such sensors is highly dependent on the ambient temperature. It is best to use such a device at a temperature corresponding to approximately the middle of the allowable range — in this case, the error will be minimal.

The most cold-resistant modern breathalyzers are capable of operating at sub-zero temperatures, the most resistant to heat — at temperatures of +45 ... +50 °C.
DINGO AT-2000 often compared
Sititek CA20F often compared