Reviews Adjustable Sensitivity Level

Elitech LD-100 Heated Diode HVAC Refrigerant Leak Detector AC Sniffer

High-precision Heated Diode Sensor: It triggers on R11/R22/R404a/R410a/R600a/R1234yf and all halogenated refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs and blends..
4 Simple Buttons: It allows to fast reset, mute, power on/off, adjust sensitivity and makes LED screen visually display the leakage level and device status..
Fast Response: Warms up in the 30s and respond in 3s.
6-grade adjustable sensitivity with maximum sensitivity 0.11oz/yr..
High Efficiency: Built-in air pump makes faster reaction and recovery speed possible and ensures detection efficiency..
Safe and Reliable: Meets EN14624 and SAE-1627 industrial standards. 24/7 US Technician Support via Email and Phone..

UPDATED：The sensitive elements adopt the advanced and reliable corona refrigerant sensor which has great sensitivity and excellent repeatability.(with 2 x Sensing Tip, 2 x C batteries).
LOW POWER CONSUMPTION：eight-bit microprocessor controller Dual-color LED indicator light with progressive and real time display Sensitivity adjustable seven level alarming indicated by LED display Modular sensor, convenient for maintenance Seven levels audible and visual alarm Auto reset testing when the detector is turned on Battery level indication..
HIGH ACCURACY：Response in 3 seconds, Warm up in 6 seconds. Max sensitivity for halogenated refrigerants: 0.11oz/yr. One extra spare sensing tip is included..
PORTABLE：Dual-color LED indicator light, with visual and clear display, smart and portable design is convenient for your mobile operation. When there is excessive refrigerant in the leak gas, this unit will automatically audio alarmed to effectively test the refrigerant leak.Adopt advanced..
BUY WITH CONFIDENCE：We've got your back with a 100% satisfaction guarantee. Reach out to us in case of any issues with your gas leak detector and we'll do all we can to make it right..

Rockville RTB12A 12“ 600w Powered Subwoofer Bass Tube With Bass Remote. 600 Watts Peak/300 Watts RMS..
12“ High power woofer in vented tubular enclosure. Integrated, built-in 300 Watts RMS Rated amplifier..
Rear aero vent bass system. Speaker level and RCA line-level input. Frequency response: 30Hz-200Hz. Sensitivity: 111 dB..
Adjustable bass crossover. Dashboard adjustable bass remote control. Molded steel woofer grill..
Four steel mounting brackets + two canvas straps with Velcro fasteners. Tube is covered in durable aviation grade tweed with embroidered logo.....

Dual Function: When the power is in "on" status, it will make extremely loud 120db alarm to be used as door stop alarm.
when the power is in "off" status, it can be used as damping rubber door stopper..
3 Sensitivity Levels: Low - Medium - High, with an adjustable switch on the side. H level is the highest sensitive level to trigger 120db alarm.An easy way to make the intruder run as fast as he can!.
Portable Design: Light weight, small size, easy to pack and take.You can carry it as a security measure for your trip. Small but very effective!.
Easy to Use: Powered by 9V battery, no mess cable. One piece can be used for a year under normal circumstances. Simply place the alarm behind door.Battery not included..
Additional Security: Place the alarm behind the door that you want to be alerted in home, dormitory, hotel or motel room while you are sleeping..
Power On: The door stop alarm in “on” status, when door pressure is applied, it will be triggered while make loud 120 dB alarm..
Power Off: The door stop alarm in “off” status, it can be used as common door stopper..
Low - Medium - High, with an adjustable sensitivity switch on the side..

Unit plugs into AC 120 volt electrical outlet with included UL approved transformer (Input: 100-240V AC 50-60Hz, Output: 9V DC 500mA) or can be used....
Unit can be self-standing or wall-mounted..
Traffic light is computerized with adjustable sound level meter..
Red light counter registers each time the red light activates. Push reset button to reset counter to zero..
Decibel sensitivity control can be set to operator's choice. Push button to devrease sensitivity. Also offers manual operation option of staying on a....

...ollar's sensor detects the sound and vibration of your dog's bark, it will release a burst of citronella spray. Our citronella dog collar is safer than shock bark collar, harmless and safe to the psyche and health of pets, help your pets to develop a good habits efficiently [Include citronella spray]..
【Adjustable Sensitivity and Spray Volume】The citronella bark collar has two sensitivity level (high and low) and spray volume(small & large). It is easy to switch by simply pressing the "adjust" button. You can adjust the sensitivity of the dog barking collar to match your dog's barking and the environment. You can also set the spray volume of anti bark collar for dogs to achieve a better training effect..
【Upgraded Smart Bark Detecting Technology】The spray bark collar is designed with an advanced recognition chip with exclusive anti-false triggering technology, which can safely and effectively filter other unrelated sounds and prevent false triggering. Only your dog's barking can activate this no bark collar while other dogs' barking nearby, shaking head or other sounds can't trigger it..
【Adjustable Nylon Strap for All Size Dogs】The citronella dog collar fits dogs 8 lb and up and adjustable strap fits pets with a neck size up to 25 in (two c....

... most dogs whose neck length does not exceed 60 cm(23.6 in).
Humance Two Training Modes - You could alternatively set this bark collar as a dog vibration collar that only beeps and vibrates or as a dog shock collar that beeps, vibrates and shocks. No Shock Mode is recommended for small dogs from 5-15lbs..
5 Adustable Sensitivity Levels - The dog shock collar offers 5 sensitivity levels that can effectively detect barkings of all size dogs. Select a suitable sensitivity level that works most effectively on your dogs. Level 5 is the most sensitive and level 1 is the least..
Rechargeable and Long Lasting Battery - Our Bark Control Device contains an integrated rechargeable battery, which is environmentally friendly, and can be fully charged in 2 hours for up to 15 days of work time. There are 3 green horizontal bars which shows the battery volume, easy to remind you to charge..