The SlopeView TLL-90E is a low cost and high accurate device for measuring surface and single axis inclinations

Model	TLL90		TLL90E
Accuracy	±(0.05°+1%)		±(0.1°+1%)
Measuring range	Single axis:360°Dual axis:±40°
Resolution	0.01°
Response time	<0.4second	<0.25 to 1 second	<0.4second	<0.4second
Laser Beam	Class2,635nm red laser,<1mM		532nm green laster, <1mM
Audio sound	60dB@30cm
Operating temperature	0 to 50°C
Storage temperature	-10 to 60°C
User Interface	Mono –color LCD with backlight
Supply Power	3.7V Rechargeable Li-lon Battery ,3.7volt.
Charger port	5V 500mA Mini type –B USB prot
(TLL90B)Bluetooth	Distance with 10m(open area)
Power Consumption	Standby:200μA, Operation:20mA
Standby Battery Life	2000hours
Operating Battery Life	40hours
Dimensions (in mm)	93(L)X66(W)X28(H)
Magnetic Base	affix at the botton back
Accessories	USBCharging,cable,angleplate,charger manual(optional:carrying box)

slope view dual axis TLL-90E laser IR Digital Protractor/electronic Protractor