The 4 in 1 digital Multi-Function Environment Meter has been designed to combine the functions of Sound Level Meter, Light Meter, Humidity Meter, and Temperature Meter. It is an ideal Multi-Function Environment Meter Instrument with scores of practical applications for professional and home use.

FEATURES

• 4 functions measure Sound level, Light, Humidity and Temperature
• 3 1/2 large LCD display with units of Lux, ºC, % RH and C & dB, A & dB indication
• Light measuring levers ranging from 0.01Lux to 20,000Lux
• High Temperature accuracy

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• Fast response for humidity measurement
• Semiconductor sensor for temperature measurements plus K-type thermocouple wide temperature measurement
• Temperature measures in °C / °F
• Data Hold and Max Hold function
• Easy to use
• Auto Power Off
• Low battery indication
• Over-range indication

SPECIFICATIONS

Description	4 in1 Multi-Function Environment Meter
Model	TH8820
Relative Humidity
Measurement Range	25 to 95%RH
Measurement units	%RH
Basic Accuracy	± 5% (35 to 95%)RH
Resolution	0.1%
Temperature
Measurement Range	0° to 50°C (semiconductor sensor) -50°C to 750°C (K-type thermocouple)
Measurement units	°C / °F
Basic Accuracy	± 3.0% ± 2°C (-20° to +200°C) ± 3.5% ± 2°C (-20° to +750°C)
Resolution	0.1°C / 1°C
Sound Level
Level ranges	30dB to 130 dB LO：30dB to 100dB Hi：80dB to 130dB
Frequency range	30HZ to 10KHZ
Accuracy	±3.5 dB at 94 dB sound level, 1KHZ sine wave
Resolution	0.1dB
Frequency weighting	A/C
Time weighting	FAST
Microphone	1/2 inch electret condenser microphone
Light meter
Measuring range	200, 2000, 20.000, 50.000 Lux
Measurement units	Lux / Fc
Accuracy	± 5% rdg ± 10dgts (< 10,000lux/fc)
Resolution	0.1/1/10/100 Lux / Fc
Repeatability	± 2%
Temperature Characteristic	± 0.1% /ºC
Photo detector	One silicon photo diode with filter
Display	Large 3 1/2-digit LCD with function indication
Over-range	“OL” mark indication
Power type	9V alkaline battery type NEDA 1604A; 6LR61 or 6F22
Auto shut-off	Auto shut off after 10 minutes to preserve battery life
Product weight	250g (with battery)
Product dimensions HxWxD	251 x 64 x 40 mm
Approvals	CE
Accessories	Battery, K-type temperature probe, humidity probe, light probe, carrying case, manual