cant get the alarm to stop sounding any ideas hit the reset changed the batteries still ng ?

Check to see if there is water in the tip. If there is a lot of moisture or water in the actual sensor the alarm will go off non stop.

LS790B to detect all non-combustible CFC, HCFC, HFC, SF6 gases and blends. 404a is hp62, so if you go by item description from cps website the answer is no

How accurate it finds leaks

I was able to find the small lea that was in the back of the blower unit in a matter of minutes. The AC repairman wanted $100 to take out his tester. I was able to quickly point the leak out to the repairman without paying for his time to troubleshoot.

How accurate it finds leaks

My husband really likes this detector and says it is extremely accurate. He didn't like the detector, either, until he read the directions carefully. When working in a refrigerant saturated area (like inside a cooler where a unit has been leaking), the detector will "sound off" continuously. You must keep "clearing" the unit in order to "pinpoint" the leak and keep your "sensitivity" level about half-way. Also, the "tip" of the leak detector must be "clean" and on tight. If the "tip" is loose, the unit will continuously "sound off". This CPS detector replaced an older, popular brand name unit that cost 3x as much and he likes this one better.

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CPS LS790B Leak-Seeker - Electronic Leak Detector with 0.25 oz/yr Sensitivity, Flex Probe, and High-Intensity Bar Graph Display

CPS LS790B Leak-Seeker - Electronic Leak Detector with 0.25 oz/yr Sensitivity, Flex Probe, and High-Intensity Bar Graph Display

Product ID: 766092

Details

Alarm
Audible
Brand
BBK
Color
Yellow
Global Trade Identification Number
Item Weight
0.2 Pounds
Manufacturer
CPS Products

🎯0.25 oz/yr ultra-sensitive detection

📊High-intensity bar graph display

🔍Patented Ion-Pump sensor tech

94087 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔎 Detect leaks before they detect you – stay ahead with CPS Leak-Seeker!

SMART SENSOR TECH - Patented Ion-Pump sensor adapts to all refrigerant types for unmatched accuracy.
PINPOINT PRECISION - Detects leaks as small as 0.25 oz/yr, ensuring no refrigerant escapes unnoticed.
INSTANT VISUAL ALERTS - High-intensity bar graph and 100+ tones provide real-time, easy-to-interpret leak signals.
EFFORTLESS CALIBRATION - Automatic calibration eliminates manual adjustments, so you stay focused on the job.
HUMIDITY PROOF STABILITY - Built-in water vapor filter guarantees reliable performance even in high humidity environments.

The CPS LS790B Leak-Seeker is a cutting-edge electronic refrigerant leak detector featuring patented Ion-Pump sensor technology and an ultra-sensitive 0.25 oz/yr detection threshold. Its automatic calibration and humidity-resistant design ensure consistent, reliable performance across all non-combustible refrigerants. The high-intensity bar graph and audible alerts provide clear, immediate feedback, making it an essential tool for HVAC professionals demanding precision and efficiency.

Specifications

ASIN	B0002NYBDM
Alarm	Audible
Best Sellers Rank	#1,215,544 in Automotive ( See Top 100 in Automotive ) #172 in Air Conditioning Leak Detection Tools
Brand	BBK
Built-In Media	Tool
Color	Yellow
Customer Reviews	3.9 3.9 out of 5 stars (62)
Global Trade Identification Number	00750377777905
Item Type Name	CPS LS790B Leak-Seeker Refrigerant Leak Detector
Item Weight	0.2 Pounds
Manufacturer	CPS Products
Mfr Part Number	LS-790B
Model Number	LS790B
Number of Items	1
Power Source	Corded Electric
Product Style	simple
Sensor Type	Ion Pump
UPC	750377777905

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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94087 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

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