MASTERCOOL 55900 Blue Refrigerant Leak Detector
SKU: 76506941404

MASTERCOOL 55900 Blue Refrigerant Leak Detector

Sale price$165.36 Regular price$183.73
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

MASTERCOOL 55900 Blue Refrigerant Leak DetectorAt the heart of this leak detector is a new low power metal oxide gas sensor with superior performance properties such as lower current consumption and sensor longevity. The new sensor is characterized by high sensitivity and fast response upon detecting the presence of extremely small levels of chlorofluorocarbon gases. For this reason, this sensor was selected and integrated into the 55900 Leak Detector. In addition, a powerful microprocessor was

At the heart of this leak detector is a new low power metal oxide gas sensor with superior performance properties such as lower current consumption and sensor longevity. The new sensor is characterized by high sensitivity and fast response upon detecting the presence of extremely small levels of chlorofluorocarbon gases. For this reason, this sensor was selected and integrated into the 55900 Leak Detector.
In addition, a powerful microprocessor was integrated into the design that automatically selects the best operating condition for the sensor to ensure optimum performance throughout the life of the sensor.
Super Sensitive Function allows the unit further sensitizing beyond the standard settings for locating small leaks with gases such as R1234yf and R407C

SENSITIVITY:
HIGH: 0.15 oz/yr (4 g/yr)
MEDIUM: 0.25 oz/yr (7 g/yr)
LOW: 0.50 oz/yr (14 g/yr)

PROBE:
Intelligent tip design that senses the condition of the environment, to eliminate the potential of false alarms.
Flexible 15.5" probe for difficult to reach locations

DISPLAY:
Six vertical LED's (red, yellow or green) display the following information to the user such as:
Relative signal level of the detected leak
Selected sensitivity range (low/medium or high) of the unit
Diagnostic information: low battery, interference/wait, contaminated atmosphere, readiness of the unit or fault conditions of the unit

REFRIGERANTS: Detects all refrigerants (CFC's, HCFC's, & HFC's and blends)
SENSOR LIFE: 2000 hours

SENSING ELEMENT: Heated tin oxide

OPERATING TEMPERATURE RANGE: 0 to 140°F

RESPONSE TIME: Less than 1 second
POWER: 2 C Alkaline 6000 mAh batteries

BATTERY LIFE: 30 hours

WEIGHT: 1.08 lbs

KEYPAD FUNCTIONS:
ON/OFF: Press the ON/OFF button to turn the unit on or off

VOLUME/MUTE: Press the VOLUME/MUTE button to control the volume of the unit

H M L SENSITIVITY: Press the H M L SENSITIVITY button to select the desired sensitivity level

PEAK/HR/LR: The PEAK/HR/LR key serves a dual purpose:
(1) To assist the user in locating the largest leak in a system with multiple leaks present.
(2) To enable the user to switch between HR (high range) and LR (low range) modes.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76506941404

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Luz Roebuck
Lowell, US
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Reviewed in the United States on April 18, 2025
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Waukegan, US
★★★★★ 5
We used it to serve very hot menudo
Size: 18oz brown
Very sturdy
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Reviewed in the United States on December 3, 2025
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Lake Worth, US
★★★★★ 5
Good, sturdy and easy cleanup for family events and holidays!
Size: 18oz brown
These disposable bowls seem well designed, with a focus on people who want compostable and microwave-safe options for hot foods. I like how thick and sturdy they are. They’re easy to use and stack neatly for storage. Great for parties, camping, or fast cleanup days. A good value for the price. They thankfully have good compostability.
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Reviewed in the United States on December 10, 2025
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M. Balliet
Phoenix, US
★★★★★ 5
Nice recycled bowls!
Size: 18oz brown
This is a nice packs of disposable bowls. They hold up well when you microwave something in them (It was a can of drained corn and butter). I like that they're compostable , and they do a good job at resisting moisture. I didn't leave a bowl full of water overnight, but for having a meal, they're perfect to contain your food.
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Reviewed in the United States on October 30, 2025
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Jeff S.
Carnegie, US
★★★★★ 5
Excellent mineral sunscreen for sensitive skin.
Set name: Tube - 3 oz.
I’ve been using the Blue Lizard Sensitive Mineral Sunscreen, and it’s become a staple in my routine. As someone with sensitive skin, I really appreciate that it’s fragrance-free and uses zinc oxide, providing great protection without causing any irritation or breakouts. It goes on smoothly, isn't overly greasy, and the water resistance holds up well for outdoor activities. The smart cap technology is a nice touch, too. Highly recommended if you’re looking for effective, non-irritating sun protection.
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