User Manual

PRIMEX/CHANEY INSTRUMENT CO.

Hong Kong Primex Asia Limited Shenzhen Representative Office

REV (1.3) DATED 28/12/05

Page 3 of 10

1. INTRODUCTION

Wireless refrigerator / freezer thermometer product is composed of a receiver and

two senders. Two remote sensor controllers are included in this system. The controller can

receive the temperature signal and raise the audio alarm signal.

2. FEATURES

2.1 Temperature Range of Sender: -40F To 104F(-40℃To +40℃)

2.2 Temperature Accuracy: +/- 2F

2.3 Centigrade or Fahrenheit displays by a switch

2.4 The sender can detect the low voltage of battery and indicate this information on the

display of receiver.

2.5 The receiver has Key tone function.

2.6 There is a stochastic 8 bits ID codes in every sender.

2.7 The system has an audio alarm with beep.

2.8 The Max and Min of temperature can be displayed in the display screen of the receiver.

2.9 The base frequency is 433MHz.

3. LCD DISPLAY

3.1 The senders are without LCD.

3.2 The receiver’s LCD fully displays as following,