FLOW METER PCE-TDS 100HS is a portable handheld clamp-on ultrasonic flow meter used for non-invasive, unobstructed and highly accurate measurements of the flow velocity of liquids in metal, plastic and rubber pipes and tubes with a diameter of 20 … 108 mm / approx. 3/4 ... 4 in. Ideal for use in oil and gas, water and wastewater, chemical, food and beverage, pharmaceutical, metals and mining, pulp and paper, power and heating, ventilation, air conditioning and refrigeration (HVACR) industries, this ultrasonic flow meter features user-friendly velcro-strap clamps that allow for quick and easy repositioning of the electroacoustic transducers.   Measurable liquids include: acetate, acetone, alcohol, ammonia, aniline, benzene, butyrate, chloroform, ethanol, ethyl alcohol, ethyl ether, ethylene glycol, freon R 12, petrol, glycerin, glycol, isobutanol, isobutane, isopentane, kerosene, linseed oil, methanol, methyl alcohol, engine oil, diesel oil, olive oil, peanut oil, paraffin oil, pentane, petroleum, 1-propanol, coolant, lubricating oil, silicone oil, transformer oil, trichlorethylene, 1, 1, 1 - trichloroethane, turpentine, distilled water and sea water.   Specification Handheld measuring range -32 ... +32 m/s Resolution 0.0001 m/s Accuracy for DN ≥ 50 mm: for DN < 50 mm: ±3.5 % of measured value ±1.0 % of measured value Reproducibility ±1.0 % of measured value Media All liquids with an impurity <5% and a flow >0.03 m³/h   Flow units Cubic meter [m³] Liter [l] Gallon (USA) [gal] Imperial gallon (UK) [igl] Million USA gallon [mgl] Cubic foot [cf] Barrel (USA) [bal] Imperial barrel (UK) [ib] Oil barrel [ob]   Time settings per day [/d] per hour [/h] per minute [/m] and per second [/s]   Data logger 1800 measurements Interface USB (for online measurement and reading of the internal memory) Protection IP 52 Power supply 3 x AA NiMH rechargeable battery / 2100 mAh (at full charge 12h running time) 100 … 240 V AC 50/60 Hz Dimensions 214 x 104 x 40 mm / 8.4 x 4.1 x 1.5" Weight 450 g / 15 oz Sensor (only PCE-TDS 100 HS)             nominal width  DN 15 … 100, 20 … 108 mm / approx. 3/4 ... 4" Temperature of liquid -30 … 160 °C / -22 ... 320 °F Dimensions 45 x 30 x 30 mm / 1.7 x 1.1 x 1.1" Weight 75 g / 2.6 oz   Include 1 x Ultrasonic flow meter PCE-TDS 100HS  2 x Sensor TDS-S1 (PCE-TDS 100HS) 2 x 5 m / 16.4 ft transducer connection cables 2 x Velcro cable ties 1 x Power adapter 1 x Ultrasound contact gel 1 x PCE tape measure 1 x Plastic case 1 x User manual 1 x ISO calibration certificate