Landtek SL-1256DOS Logging Personal Noise Dose Meter digital Sound Level Meter

Description

Spec：
The personal noise dose meter is test equipment to evaluate the noise condition of working environment by measuring the accumulated noise exposure.
Features:
The Noise Dose Meter measure the frequency weighted noise exposures and peak sound levels simultaneously.
* Simple operation, including direct read–out of results.
* Eight built–in standard dose measurement setups : OSHA80, OSHA90, MSHA-80, MSHA-90, DOD, ACGIH, ISO85 and ISO90.
* Nine user – defined measurement setups.
* A single sound level meter (SLM) setup.
* A single sound level meter (SLM) setup.
* 50 dose (DATA) result stores.
* Download of setups from PC to the meter.
* Keypad lock protects meter against accidental operation.
* Timers support pre–selection of measurement time and duration.
* Use USB data output to connect with PC.
The meter is ideal for quick on–site surveys and for monitoring personal noise exposure in accordance with European ISO or USA OSHA, MSHA, DOD AND ACGIH standards.
The meter is two overlapping measurement ranges : 60 – 130 & 70 – 140dB, A & C RMS weightings, Linear & C Peak weightings, Fast & Slow time weightings, and energy exchange rates (Q) of 3, 4, 5 & 6. In dose measurement mode, it display % dose, % dose projected for an 8 hour period, peak level and measurement duration.
For countries that are subject to European Union regulations or the equivalent ISO standards,  the  meter  measure  the  daily  sound  exposure  level  (LAeq,8hr,Pa2h according to IEC 61252, which is identical with the L EX,8h  required by ISO 1999), while for USA OSHA/MSHA regulations they measure the Time Weighted Average level (TWA).
When used as a sound level meter it display sound level, time–averaged (L Aeq) sound level, peak and sound exposure level (SEL).
The meter is automatic run timing facilities controlled by the built–in clock and time–history recording capabilities. Sampling times can be specified between 1s and 1 hour, while storage is 120000 data points.
The meter is able to measure and save up to five specified Ln values (Statistical noise levels). Run duration, start and stop times preset, and other setting via the meter keys or software.
Specifications:
Standard Applied
IEC61252, ANSI S1.25 – 1992 for dose meter and sound exposure meters. IEC 61672-1-2013 Class 2
Microphone
1/2-inch electret condenser microphone with 31-inch integral cable
Display
Liquid Crystal Display
Measurement Ranges (Linearity and Indicator ranges at 4KHz)
60 – 130 : 60 – 130dB (A and C)
70 – 140 : 70 – 140dB (A and C)
Peak  Ranges  (C–weighted  or  Linear  Peak  over the  top  40dB  of  each  measurement  range)
60 – 130 : 93 – 133dB Peak
70 – 140 : 103 – 143dB Peak
Frequency Weightings
RMS Detector: A or C
Peak Detector: C or Z (Linear)
Time Weightings
Fast and Slow (RMS detector)
Exchange Rate
3, 4, 5 or 6dB
Stabilization Time
10 seconds from power on
Threshold and Criterion Levels (From the setup, predefined in the built – in setup according to applicable standards)
User–defined setups in the following ranges :
Threshold Level : 70 – 90dB in 1dB steps
Criterion Level : 80, 84, 85 or 90dB
Criterion Level : 80, 84, 85 or 90dB
At 0.1dB above the top of the selected measurement range
At 0.1dB above the top of the selected measurement range
Under–Range Indications
High Level Detector
115dB
Keypad Lock
Lock and unlock by pressing key combinations: Up and right arrows to lock; left and down arrows to unlock
Clock
Real–time clock with calendar
Memory
Results from 50 measurements can be stored for later viewing and download
Measurement Control
Measurement Duration : May be set to 5, 10, 15, or 30 minutes or 1, 2, 4, 8, 10, 12, or 24 hours
Timers
Up to 16 timers(automatic start and stop)can be set(maximum up to one month ahead of measurement time)
Timer Controlled Started / Stop
Set up from the PC software or meter keypad
Logging
All measurement parameters values can be logged
Logging Period (LP)
1s, 2s, 5s, 10s, 15s, 20s, 30s, 1min, 2min, 5min, 10min, 15min, 20min, 30min or 60min
Logging Capacity
120000 values can be stored at any one time
Setup
Eight built–in (predefined) default setups are included. Nine additional user–defined setups can be stored
Output
USB interface
Power Supply
4x1.5V AAA Size (UM-4)Battery
not included
Battery Indicator
Symbol indication battery voltage level in 4 steps. Indicator flashes when voltage is insufficient for operation
Operating Temperature & Humidity
0 – 50ºC (32 to 122ºF) ,10 – 90%RH
Storage Temperature & Humidity
-10 – 60ºC(14 to 140ºF) ,10 – 75%RH
Size
140x72x34mm
Weight
Approx. 350g (including batteries)
Accessories:
Standard Accessories
Main Unit
External Probe
Screwdriver
Carrying Case (B04)
Operation Manual
Optional Accessories
USB Data with Software
Bluetooth Data Adapter with Software
Notice:
The  standard package don't include batteries.Because,the international air  shipping forbid to ship liquid,powder and batteries,we can not put them  in the package box.Hope you can understand buy them in your local store  or supermarket.Thanks for your support!
Shipping:
We will ship all items within 1-3 working days upon receipt of payment,our goal is: ship it as fast as we can.
Standard Shipping: To USA,UK and Australia by ePacket,need 7-12 working days.
Expedited/Standard  Int'l Shipping by Fedex,DHL,TNT and EMS courier: To USA,need 3-6  business days,To other countries,need 4-8 business days normally.But  sometimes int'l delivery is highly depended on the courier company and  local customs/duties.
Import duties and taxes are not included in the item price or shipping charges.These charges are the buyer responsibility.
Warranty&Reture Policy:
We  encourage all customers to communicate with us through eBay messages.  If you have any questions or comments whatsoever regarding our products  or listing, we are waiting to hear from you
A 1 year warranty is offered for this product.If the product malfunctioned under proper usage per instructions
manual within the warranty period, please contact us to obtain shipping instructions and send it back at your shipping costs.
30  days evaluation and investigation takes placed after receiving your  return item.A brand new replacement unit will be sent to you at our  shipping costs if it meets our warranty requirements.
On Feb-05-20 at 15:40:32 PST, seller added the following information: