- Measuring range: 30 ... 130 dB in 3 ranges
- Resolution: 0.1 dB
- Accuracy: ± 1.5 dB
- IP 54 ingress protection rating on transmitter offers limited protection against dust ingress (no harmful deposit) and protection against splashed water from any direction
- IP 65 ingress protection rating on digital indicator offers total protection against dust ingress and protection against low-pressure water jets from any direction. Limited ingress permitted.

Technical specifications
Sensor
Measuring range	30 ... 130 dB in 3 ranges: I. 30 ... 80 dB(A) II. 50 ... 100 dB(A) III. 80 ... 130 dB(A)
Resolution	0.1 dB
Accuracy	±1.5 dB
Frequency weighting	A
Power supply	Via transmitter
Cable length (sensor to transmitter)	1.5 m / 4.92'
Operating conditions	0 ... +50 °C / +32 ... +122 °F, max. 85 % RH
Microphone	1/2" precision electret
Standard	IEC 61 672 (Class II)
Transmitter
Housing	ABS plastic
Power supply	90 ... 260 AC V
Calibration	Adjustable by set screw
Output	4 ... 20 mA
Protection class	IP 54 ingress protection rating
Operating conditions	0 ... +50 °C / +32 ... +122 °F, max. 85 % RH
Digital indicator
Transmitter input signal	4 – 20 mA
Indicator	- 1999 ... 9999 (1 ... 3 decimals, according to the measurement value / chosen by the user)
Programming data (decimals, limit value ..)	Saved in the unit
Regulation output	3 points (Com, NO, NC)
Alarm output	Relay output: 5 A / 240 V AC
Power	90 ... 260 ACV / 50 ... 60 Hz
Dimensions / Switchboard according to DIN	92 (+ 0.8) mm x 45 (+ 0.5) mm
Weight	Approx. 250 g / 0.56 lb
Operating conditions	0 ... +50 °C / +32 ... +122 °F, max. 85 % RH
Protection class	IP 65 ingress protection rating