Supply Voltage:9V alkaline 6LR61 included
Battery Life:Up to 25 hours continuous
Accuracy:
Optical :± (0.3% rdg + 1 RPM)
Contact :± (1% rdg + 3.3 RPM)
Measuring elements:
Optical :Phototransistor
Contact :ETC type adapter
Measurement Range:
Optical :60-60,000 RPM (units Tr/min, RPM)
Contact :30-20,000 RPM (units m/min, ft/min, 1n/min)
Resolution:
Optical :1 RPM
Contact :1 RPM
Operating Temperature:32° to 122℉ (0° to 50℃)
Storage Temperature:-4° to 176°F (-20° to 80°C)
Cable Type: Retractable, 18″ to 95″ Retractable, 18" to 95" (46 to 241 cm)
Display: 2 lines, 12 characters 0.5"H x 1.5"W (1.3 x 3.8 cm)
Keypads: 5 elastomer keys
Housing Type:Shock-proof ABS
Dimensions: 5.7"H x 3"W x 1.3"D (14.5 x 7.6 x 3.3 cm)
Auto Shutoff Times:Adjustable 0 to 120 minutes
Language: English, French
Approvals: NF EN 61326-1 guideline, CE
Weight: 0.42 lb (0.19 kg)
Warranty: 1 year