TECPEL DSL-335 Light-weight Digital Sound Level Meter

The DSL-335 is a compact handheld digital sound level meter with a convenient carrying case. It is ideal for measuring environmental noise, quiet products, product volume standardization, equipment operational noise, and use in hospitals and maternity centers. This lightweight and easy-to-operate instrument is the professional choice for accurate sound measurement.

Key Features

• Display Modes: Normal / Backlight
• Power Saving: Auto power off after 5 minutes of inactivity
• Data Hold: MAX HOLD, MIN HOLD, Reading HOLD
• Overload Indicator: Displays “OL” symbol
• Low Battery Indicator: Battery symbol shown
• Calibration Method: Manual knob (adjustment hole at the back)

Measurement Specifications

• Display: 4-digit LCD
• Sound Level Range: 30 ~ 130 dB
• Resolution: 0.1 dB
• Frequency Range: 31.5 Hz ~ 8 kHz
• Accuracy: ±1.5 dB (94 dB @ 1 kHz)
• Frequency Weighting: A-weighted
• Time Weighting: FAST (125 ms), SLOW (1 second)

Product Specifications

• Operating Environment: 0~40°C / 10~90% RH (non-condensing)
• Storage Environment: -10~40°C / under 80% RH (non-condensing)
• Altitude Limit: Below 1,000 meters
• Microphone: 1/2 inch electric condenser microphone
• Power Supply: 1.5V AAA batteries × 3
• Dimensions: 150(L) × 52(W) × 27(H) mm
• Weight: Approx. 116 g (with batteries)
• Accessories: User manual, 9V battery, windscreen sponge