Features: Color Screen Display 10.5" Inches Long Flexible Gooseneck Probe Automatic power-off function that can be disabled Battery strength indicator Temperature measurement (°C/°F) Non-slip grip and durable buttons High-strength ABS engineering body Alarm function (beep and vibration) White Font / No Alarm - Gas Concentration value is lower than the low limit alarm setting White Font / Intermittent Vibration / Soft Beeping - Gas Concentration is higher than the low limit alarm setting but lower than the high limit alarm setting Red Font / Continous Vibration / Rapid Beeping - Gas Concentration is higher than the high limit alarm setting Specifications: Halogen Gas Detection: CFCS (Chlorofluorocarbons): R11, R12, R13, R113, R114, R502, R500. R503, R170. R600a, R1270, etc. HCFC (Hydrochloroflourocarbons): R22, R32, R123, R124, R141b, R142b, R402A, R402B, R403A, R409A, etc. HFCS (Hydroflourocarbons): R410a, R134a, R404a, R125, R407C, R417A, R507, R23, R1343, etc. Measurement Range: 0~1000PPM Resolution: 1PPM Temperature Range: -10~50°C(14~122°F) Measurement Error: ±5% FS for gas detection, ±1°C/2°F for temperature detection Alarm Setting: HIGH and LOW Limit Alarm Alarm Types: Beep sound, Vibration, and Font Color Display Refrigerant Gas Unit: PPM Warm-up Time: 180s Response Time: 6h Gooseneck Probe length: approx. 10" inches (250mm) Material: ABS Power Source: 4 x 1.5V AAA battery Dimension: 173 x 63 x 31mm Weight: approx. 350gms Set Includes: 1 x Halogen Gas Detector English User Manual Carrying Pouch