ST-50 - Featuring

Featuring

Continual six-month long measurement and recording at a remote distance of up to 50 m *
Zero stability time after the power is on
Selective recording capability of the standard full span or the enlarged range
"Z-fold" chart paper for clear and easy-to-read data unlike a data-jammed round chart paper
Notes can be written easily on the chart paper during recording

* with an optional Extension cord

Specifications

Mesurement Methods	Temperature :	Semiconductor Sensor
	Humidity :	High molecular Electrostatic Capacity
Measurement Ranges	Temperature :	-20°C - 50°C / 0°F - 120°F -20°C - 80°C / 0°F - 170°F (with extension cord)
	Humidity :	20 - 90% RH (No Condensation) 0 - 100% RH (with Extension cord, No Condensation)
Display	LCD
Temperature	-20°C - 80°C / 0°F - 170°F
Humidity	0 - 100% RH, 0 - 290 g/m3 Absolute
Dew Points	-80°C - 80°C / -112°F - 170°F
Others	Battery Checker, Chart Speed, Set-Up, Calibration, AC Adaptor, Alarm
Display Accuracy	Temperature :	± 0.5°C / ± 0.9°F at 25°C / 77°F
	Humidity :	± 2 %RH (at 25°C / 77°F, 10 - 90% RH)
Recording	Fiber tip pen ink Lower Pen : Temperature Upper Pen : Humidity
Chart Paper	"Z-fold" Type, 12 m(L), 113 mm(W), Folding Length : 40 mm
Effective Width	100 mm (for both Temperature and Humidity)
Feeding	Sprocket
Feeding Accuracy	± 3 mm (at 12 m Long Recording)
Range	Selective between Full Span and Enlarged Range with Switch

Chart Speed	Recording Cycle	Recording Period (Reference Only)	Battery Service Life (Standard Mode)	Battery Service Life (Energy Saving Mode)
2.5 mm/H	6 min.	6 months	3 months	6 months
5.0 mm/H	3 min.	3 months	3 months	3 months
10.0 mm/H	1.5 min.	1.5 months	1.5 months	1.5 months
20.0 mm/H	1.5 min.	3/4 months	1 month	1 month

Calibration	Temperature :	1 point
	Humidity :	1 or 2 points
Environmental Conditions	Ambient Temperature :	-20°C - 50�‹C / 0�‹F - 120�‹F
	Ambient Humidity :	20 - 90 % RH (No Condensation)
Power Supply	Battery :	LR20, 1.5 V×4
	AC Adaptor :	AC 120 V/60 Hz or AC 230 V/50 Hz
Dimensions	300 (W)×245 (H)×105 (D) mm / 11.9" (W)×9.7" (H)×4.2" (D)
Approx. Weight	2.1 kg / 4.7 lbs. (Without the batteries)
Standard Accessories	4×Batteries (LR20, 1.5 V) 1×Chart paper 1 each×Fiber tip pen (for temperature and humidity) 1×Operation Manual
Optional Accessories	Alarm relay unit (for upper and lower limits) Sensor extension cord (5 m, 20 m and 50 m) Dust-proof cover Splash-proof cover Calibration set (saturated salt method)