Retrotec 350 Residential DucTester System
The Model Retrotec 350 has twice as many ranges that will measure flows down to 0.6 liters per second but will also go up to 350 liters per second to test houses by adding the optional frame package. Over 30 years of airtightness technology and design expertise have gone into making this the most flexible but also the most reasonably priced DucTester for residential and small commercial duct tests at 80, 160 and 250 Pascals.
Super lightweight, easy operation, great quick guides make this the best choice for testing ducts. Runs on any voltage from 100 to 280 Volts or for 3 hours on an optional 48 Volt Lithium Ion battery pack that weighs 3 kg.
Technical specifications:
Fan Model # 351 Flow Into: CFM liters/sec m3/h Maximum Flow, CFM Free Air 803 379 1365 25 Pa 783 370 1331 Minimum Flow Range 102 174.4 82.3 296.3 Range 74 30.1 14.2 51.1 Range 47 11.3 5.3 19.1 Range 29 5.2 2.4 8.7 Range 18 3.2 1.5 5.5 Range 11 TBD TBD TBD Dimensions 14" × 12.5" × 14.5" (35.5 x 32 x 37 cm) Weight 12 lb (5.5 kg) Flow Accuracy +/-3% ISO 17025 accredited certificate available Power Supply Input: 120V/60Hz, 240V/50Hz, or 110V/50Hz Output: 48V DC/ 3.31A Power Output 0.213 hp, 159 Watts Maximum Fan Calibration Interval Every 5 years or sooner depending on standard Digital Gauge Model DM32 * The max flow of the fan will vary depending on the following factors: barometric pressure, back pressure, blade pitch, air temperature, bearing tightness, inlet air turbulence, length of flex duct.