Ultrasonic Cleaner – Ultrasonic Jewelry, Parts Cleaner with Analog Timer and Heater for Cleaning Carburetor, Fuel Injector, Record, Circuit Board, Brass, Engine Parts, Home Repair Tool, etc. (3L) 40KHz frequency for intensive cavitation rinse: the ultrasonic cavitation machine can clean silver, gold, jewelry, rings, turquosie, diamonds, earrings, necklaces, gems, brackets, coins, retainer, bike chain, glasses, eyeglasses, brass, gun, pcb boards, parts etc. 3L/0.79Gal full volume and 2.4L/0.63Gal effective volume: the sonic cleaner or lab ultrasonic cleaner can clean any stuffs which are not longer than 220mm or 8.66inch. Die-casting SUS304 stainless steel tank: make the portable ultrasound machine resistant to weak acid and weak alkalis. Free time setting among 130min: large time-setting range makes the device be the best ultrasonic cleaner for cleaning sundry small stuffs. 68176°F/2080°C heating temperature range for degreasing and dewaxing: the ultrasonic washing machine can heat to reduce the adhesion strength of oil and wax so as to improve the ultrasonic cleaning effect. NOTE: The device only starts heating when the preset temperature is higher than the actual temperature of cleaning solution.