Check the listing for details. Refrigerant Electronic Scale Automatic Programming Quantitative Filling Scale. Condition: New. Listed at 110.20 USD. eBay Electronic scale automatically programmed quantitative filling high-precision weighing scale refrigerant air conditioning fluoridation weighing Model:RCS-7040 Range of weight:0-100kg or 0-220 Lbs Accuracy:0.05% of reading Resolution:+ 5 g / 0.010LB / 0.25OZ Unit:KG /Lb /OZ Power supply:9VDC Operting temp:32FTo113F ( 0C To 45 C ) Battery life:30 Hours Continuous Use Model: RCS-N9030 Feature: high performance large flow solenoid valve (It only takes 40 seconds for each kilogram of refrigerant flow) High-definition LCD display Three units can be converted (kg, pound,ounce) Recyclable and fill all refrigerants High precision 100 kg 5 g Automatic programming Can be filled with gas and liquid (The battery is dangerous and cannot be transported. It is not included and needs to be purchased by yourself) Model: WK-RF100V Maximum weighing: 100kg Accuracy: 0.5% Operating voltage: 6 * 1.5V Product weight: 3.5kg Wireless distance: within 5 meters Resolution: ± 5 grams Overload capacity: 150% Weighing plate material: sturdy aluminum alloy Adapting to refrigerants: various conventional refrigerants Product model: ST-RF100 Maximum weighing: 100kg Resolution: 5 grams, 0.01 pounds, 0.16 ounces Accuracy: ± 0.05% Battery life: 50 hours of continuous use Operating temperature: -10~45 ° C Scale size: 314 * 239 * 61mm Net weight: 4.13kg Power supply: Scale body: 1.5V No.5 (AA) 6 batteries Control instrument: 1.5V No.7 (AAA) 5 batteries