Specifications

SM150
AM50
ELECTRICAL &
SPECIALTY METERS
Precision vane type anemometer provides fast,
accurate air velocity measurements for use in
balancing HVAC systems or determining CFM
calculations. A convenient TYPE K thermocouple is
built-in to the remote vane providing quick
measurement of grille/duct outflow temperatures from
32 to 122 F / 0 to 50 C. Included, is an easy-to-read
laminated conversion chart that allows the user to
quickly convert air velocity measurements into CFM
calculations at a glance. Shipped with a rugged
carrying case and is CE approved.
AM50 AIR VELOCITY METER
UNITS RANGE ACCURACY
Ft/Min 0-8800 ±3% or 0.1
M/S 0-45 ±3% or 0.1
km/Hr 0-140 ±3% or 0.1
knots 0-88 ±3% or 0.1
SM150 SOUND LEVEL METER
Professional grade sound level indicator designed to measure noise
levels from 35 to 130dB. The unit incorporates a large LCD,
maximum hold function, Over and Under range indicator, peak and
average response settings and A-C weighing for checking
compliance with standard safety regulations. Applications include
the monitoring of HVAC/R compressors, blowers, health and safety
requirements, environmental quality issues, offices, factory
machinery, airports, auditoriums and studio acoustics. Unit is CE
approved and includes carrying case.
EXAMPLES SOUND
PRESSURE
LEVEL dBSPL
SOUND
PRESSURE
N/m2 = Pa
SOUND
INTENSITY
watts/m2
Jet aircraft, 50 m away 140 200 100
Threshold of pain 130 63.2 10
Threshold of discomfort 120 20 1
Chainsaw, 1m distance 110 6.3 0.1
Disco, 1 m from speaker 100 2 0.01
Diesel truck, 10m away 90 0.63 0.001
Curbside of busy road, 5m 80 0.2 0.0001
Vacuum cleaner, distance 1m 70 0.063 0.00001
Conversational speech, 1m 60 0.02 0.000001
Average home 50 0.0063 0.0000001
Quiet library 40 0.002 0.00000001
Quiet bedroom at night 30 0.00063 0.000000001
Background in TV studio 20 0.0002 0.0000000001
Rustling leaf 10 0.000063 0.00000000001
Threshold of hearing 0 0.00002 0.000000000001
SPECIFICATIONS
Pg 15